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Info Database Last Updated 13.12.2021 (Entity News entries: 83)
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 1Info Publication Date:
July 6, 1905Info found on page:
29Info Title:
Second Large Drainage Tunnel for the Cripple Creek District Plans
Denver, June 28—Two-thirds of the $750,000 needed for the construction of the second large drainage tunnel for the Cripple Creek district, amounting to $500,000, has already been subscribed at a meeting of the principal mine owners, and active work will probably be commenced before long.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 26.06.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 4Info Publication Date:
July 29, 1905Info found on page:
175Info Title:
Second Large Drainage Tunnel Will Commence Shortly
Denver, July 19—Preliminary arrangements being almost completed, work on the second large drainage tunnel in the Cripple Creek district will commence within a short time and A. C. Jacquith, the engineer, who constructed the first tunnel, expects to complete the work in about two years, the cost being estimated at $750,000.
It will be about 3.5 miles long from the El Paso shaft to the entrance.
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Above Info was Last Updated on 11.10.2021 (21:07:54)
Above Info was First Seen 29.06.2021
Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 9Info Publication Date:
September 2, 1905Info found on page:
420Info Title:
New Drainage Tunnel Will Be Commenced at an Early Date
Drainage Tunnel—It is reported that the new drainage tunnel will be commenced at an early date. It will be started about 3 miles below the mouth of the present tunnel in Cripple Creek canon. It is the intention to run the tunnel straight to El Paso shaft, cutting that shaft at a depth of something over 1,300 ft. From El Paso shaft the tunnel will make a turn and run directly toward the Vindicator mine.
A tunnel of this depth will drain the district for many years to come.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 04.07.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 12Info Publication Date:
September 23, 1905Info found on page:
559Info Title:
Drainage Tunnel Financing Issues
Denver, Sept. 15—A more or less serious obstacle in the financing of the construction of the new drainage tunnel at Cripple Creek is the fact that a number of the mine owners on the east side of the district seem to be inclined to withhold their contributions until assured that their mines will be drained, since it may be three years before the Portland mine will be reached.
About $550,000—of the necessary $750,000—has been subscribed and the plan is to engage the services of a prominent engineer to explore the course of the tunnel and make recommendations in regard to its construction.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 18.08.2021
Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 13Info Publication Date:
September 30, 1905Info found on page:
614Info Title:
Drainage Tunnel Location Might Change
Drainage Tunnel—The immediate commencement of the new drainage tunnel is again being talked of. In all probability a number of other surveys to determine the most feasible place to construct the bore will be begun at once. Considerable has already been done on this line.
Until recently it has been understood that the tunnel would be constructed in Cripple Creek gulch, but now there is some talk of driving from Wilson Creek gulch.
It is understood that D. W. Brunton, the well-known mining engineer, will probably be retained as consulting engineer for the tunnel.
The principal idea of the location of the tunnel is to find a site which will be the most beneficial to all the mines concerned. The new tunnel will undoubtedly be constructed by all of the mines in the district, and will be under the supervision of the Mine Owners' Association.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 18.08.2021
Type/Category of Info:
Personals
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 15Info Publication Date:
October 14, 1905Info found on page:
699Info Title:
Mr. D. W. Brunton in the District Due to Drainage Tunnel
Mr. D. W. Brunton is in the Cripple Creek district on professional work connected with the new drainage tunnel that is soon to be constructed by the mine-owners of that district.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 20.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 15Info Publication Date:
October 14, 1905Info found on page:
704Info Title:
Drainage Tunnel is a Probability
Denver, Oct. 6—The large drainage tunnel, which it is contemplated to build in the Cripple Creek district, is a probability.
By request of the mine-owners, D. W. Brunton has just completed a report, which will be submitted in a few days and there is considerable talk of its being used for transportation purposes also, in connection with the building of another railroad, one system virtually controlling all the transportation facilities in and from the whole district at present.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 20.08.2021
Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 15Info Publication Date:
October 14, 1905Info found on page:
710Info Title:
Drainage Tunnel Still Looking for Best Site
Drainage Tunnel—Work has been commenced on the survey of the best site for the proposed tunnel. There seems to be no doubt at all that this tunnel will be built by the mine-owners of the district.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 20.08.2021
Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 17Info Publication Date:
October 28, 1905Info found on page:
806Info Title:
Drainage Tunnel Decision Dragging on
Drainage Tunnel—At a recent meeting of the Mine Owners' Association a report was made on the drainage tunnel by D. W. Brunton, the engineer in charge.
No action was taken by the association further than listening to the report and ordering it printed.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 20.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 21Info Publication Date:
November 25, 1905Info found on page:
990Info Title:
Second Deep Drainage Tunnel to Happen
Denver, Nov. 18—The mine owners in the Cripple Creek district have adopted the assessment plan in connection with the construction of the second deep drainage tunnel. Each company will, under that arrangement, agree to pay 2% of its net returns after July 1, 1907, from its ore, into the tunnel fund.
Several large companies, which at first were reluctant to join, are friendly to the present plan, under which $800,000 will be raised by July 1, 1906, and the Cripple Creek Drainage & Tunnel Co. will at once be incorporated, with a capitalization of $1,000,000. Stock in it will be offered first to the mine owners.
The tunnel is to be constructed under the plan suggested in his report by D. W. Brunton, which was published in full in the JOURNAL of November 4.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 24.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 21Info Publication Date:
November 25, 1905Info found on page:
991Info Title:
Still Meetings About Paying for New Drainage Tunnel
Cripple Creek, Nov. 18—The proposed construction of the new drainage tunnel still continues to be the principal topic of interest in mining circles.
Several meetings have been held by the drainage committee of the Mine Owners' Association with regard to ways and means of raising the necessary funds for the work.
As far as can be determined at present the site most favored is the one known as the "window in the rock" one. Just when the work will be started is not known.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 25.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 22Info Publication Date:
December 2, 1905Info found on page:
1038Info Title:
Second Drainage Tunnel Meeting to Perfect Plans
Denver, Nov. 28—At an early date a meeting will be held to perfect the arrangements for the construction of the second drainage tunnel in the Cripple Creek district, according to the suggestions and plans of D. W. Brunton, whose report was published in this JOURNAL a few weeks ago.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 25.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 23Info Publication Date:
December 9, 1905Info found on page:
1087Info Title:
New Drainage Tunnel Legal Stuff
Denver, Dec. 1—As the projected large drainage tunnel will necessarily be of greater benefit to the properties through which it runs, than to such as are located some distance from its route, and some properties might be involved in litigation with intervening owners while trying to connect with the tunnel, provision will undoubtedly be made in the contracts for such contingencies, and this matter is at present being considered by the projectors.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 27.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 80 [LXXX], Issue No. 24Info Publication Date:
December 16, 1905Info found on page:
1138Info Title:
Drainage Tunnel Decision Still Not Final
New York. Dec. 13—Activity in mining continues, and increased general interest is everywhere manifest. In Colorado, the Cripple Creek mines are doing well. No final decision has been reached yet as to the new drainage tunnel.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 27.08.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 1Info Publication Date:
January 5, 1907Info found on page:
6Info Title:
Deep Drainage Tunnel Will Happen
Annual Review.
The Drainage Adit.
The deep drainage project which has been brought before the public several times during the past year seems now a certainty. One million dollars has been subscribed by the mine owners of the district and as soon as the work is started, which will be during the mouth of January, subscriptions, it is hoped, will be obtained from the mills, smelters, and railroads.
The place of commencing the adit is yet to be decided, but it will be either the Gatch Park or Window Rock sites.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 18.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 7Info Publication Date:
February 16, 1907Info found on page:
207Info Title:
Deep Drainage Tunnel to Happen Soon
Denver, Colorado.
Drainage Adit.
With the announcement of the intention of the mine owners to begin driving the deep drainage adit another note of encouragement is sounded. This adit is to have its portal in Gatch Park at an elevation of 8,020 ft., or 753 ft. lower than El Paso, the lowest of existing adits, and will go far to solving the water problem. It is expected to drive it to the main water course — a distance of 15,550 ft. — in two years.
It is then planned to continue it to the Vindicator shaft, giving a total length of 27,190 ft. This distance is to be driven in five and a half years, at a cost of $721,000. The mine owners are, wisely enough, raising a fund of $1,000,000 for this purpose.
D. W. Brunton is the consulting engineer, and, if his recommendations are carried out, the adit will be 7 ft. wide by 10 ft. high, and have a grade of one foot in 300. The heading is to be driven in both directions from a shaft 10,000 ft. from the portal and diamond-drills are to be used to hasten the work. Ventilation will be obtained by the use of positive blowers.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 21.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 9Info Publication Date:
March 2, 1907Info found on page:
267Info Title:
Cripple Creek Drainage Tunnel Committee Meeting
Denver, Colorado.
The Cripple Creek Drainage Adit.
A meeting of the Cripple Creek drainage tunnel committee was held on February 21 at Colorado Springs. A resolution was passed to the effect that work should be started at once on the intermediate or Gatch Park tunnel.
The assessment work on the tunnel claims is now being done at the portal of the proposed adit. It is intended to use one of the 10-drill compressors belonging to the El Paso Co. pending the arrival of a larger machine from the East.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 22.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 10Info Publication Date:
March 9, 1907Info found on page:
300Info Title:
Deep Drainage Tunnel Preparations Well Underway
Cripple Creek, Colorado.
El Paso Surrenders Drilling Equipment to Tunnel Co.
—Drainage Adit to be Pushed.
A 12-drill Norwalk compressor and a 175-h. p. electric motor ordered some months back for the El Paso mine are to be turned over, when received, to the Drainage Tunnel Co. for operating the drills on the big bore. By accepting this offer of the El Paso Co. work can be commenced several months sooner than would otherwise be the case. The cost of the machinery, which should arrive in the district within the next few days, will be borne by the tunnel company.
Grading has already commenced for the various buildings that will be required at the portal of the adit. A first request for 10 % of the amount subscribed by the various mining companies has been made and has resulted so far in the receipt of $22,000.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 22.05.2021
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 14Info Publication Date:
April 6, 1907Info found on page:
421Info Title:
New Drainage Tunnel Happenings
Cripple Creek, April 1. (Special Correspondence)—A corporation called the Cripple Creek Drainage & Tunnel Co. with a capital stock of 1,000,000 shares, par value of $1 per share, has been formed, with nine of the representative mine-owners of the Cripple Creek district acting as directors. This proposed tunnel will lower the water-level of the Cripple Creek district about 750 ft., and its portal is situated on the stream known as Cripple creek, and it is proposed to run it to a point near the El Paso mine, a distance of 15,000 ft., to cut the Beacon Hill water courses.
If it is found necessary, it will be extended to a point near the Vindicator mine, a further distance of about 11,000 ft. It is estimated that the first section of about 15,000 ft. will cost in the vicinity of 1400,000 and will take from two and one-half to three years to construct.
The mines, railroads, and other interested parties have subscribed for a sufficient amount of the capital stock at par to build the first section, and they propose to subscribe for a further amount, if it is found advisable to build the second section. The company is now engaged in constructing buildings and installing machinery and otherwise arranging for active work.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 22.05.2021
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 14Info Publication Date:
April 6, 1907Info found on page:
421Info Title:
Compressor for Drainage Tunnel Arrived
Cripple Creek, March 31. (Special Correspondence)—The compressor for the new drainage tunnel has arrived, and is being unloaded from the cars preparatory to being moved to the tunnel-site at Gatch Park. The machine is from the Chicago Pneumatic Tool Co., will operate 12 drills, and weighs about 16 tons.
Owing to the weight of the machine it will be necessary to have the road repaired in places and the bridges strengthened.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 22.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 15Info Publication Date:
April 13, 1907Info found on page:
456Info Title:
Deep Drainage Tunnel Subscribers
Denver, Colorado.
El Paso Annual Report.
—Deep Drainage Tunnel Subscribers.
The annual report of 1906 of the El Paso Gold Mining Co. has been received by the shareholders. S. S. Bernard in the report has included a list of the amounts pledged by the various subscribers toward the cost of the deep drainage adit, as the El Paso mine will be one of those properties most benefited in the driving and early completion of the adit. The amounts are as follows:
El Paso
$ 100,000
Elkton
60,000
Mary McKinney
60,000
Portland
40,000
Golden Cycle
25,000
Vindicator
15,000
Granite
15,000
C. S. & C. C. D. Ry. Co.
12,500
F. & C. C. and M. T. Ry.
12,500
U. S. R. & R. Co.
12,500
Strong
10,000
Eagle Ore Co.
6,000
Gold Dollar
5,000
Work G. M. Co.
5,000
Gold Sovereign
1,000
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Abstracted, restyled and slightly rewritten from source text.Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 23.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 16Info Publication Date:
April 20, 1907Info found on page:
486Info Title:
Specification for New Drainage Adit Made Public
Denver, Colorado.
Drainage Adit Specifications.
The specification for the new drainage adit at Cripple Creek have been made public, though bids have not yet been advertised. The specifications provide for an adit 7 by 10 ft. in the clear, which must be driven at the rate of at least 300 ft. per month, all necessary timbering is to be done by the company, and the machinery is also furnished, the contractor supplying power, labor, and supplies. Employers' liability insurance is to be carried by the company, the contractor to pay the premium on this, and also furnish a bond for $20,000 to cover possible debts and liens.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 23.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 19Info Publication Date:
May 11, 1907Info found on page:
589Info Title:
Deep Drainage Tunnel to Get Power From El Paso Mine
Cripple Creek, Colorado.
The Drainage Adit.
Wiring is in progress to connect the large motor situated at the portal of the deep drainage tunnel with the electric power at the El Paso mine. The recent bad weather has caused delay, but it is expected that the work will be completed within the next few days, so that the 12-drill compressor may be started to work as soon as the contract for driving the big bore has been let.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 24.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 20Info Publication Date:
May 18, 1907Info found on page:
623Info Title:
Formal Inception of Work on New Deep Drainage Tunnel is Saturday, May 18
Denver, Colorado.
The Cripple Creek Adit.
The formal inception of work on the new deep drainage adit at Cripple Creek is to be marked by considerable ceremony. On Saturday, May 18, Governor Buchtel will press the gold button starting the power-plant at the mouth of the adit. A large party of representative mining men from Denver, accompanied by a band, will arrive on a special train, and the mining men of Colorado Springs are expected to attend in a body, while delegations from Pueblo and other towns are also expected to be present.
The ceremony will signify, in an appropriate way, the recognition of the high importance of the drainage project, and at the same time serve as an opportunity for pleasant social intercourse among the men whose business it is to " follow the pay-streak."
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 24.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 21Info Publication Date:
May 25, 1907Info found on page:
651Info Title:
Deep Drainage Tunnel Started Work
Cripple Creek, Colorado.
The Drainage Adit is Started.
Last Saturday, the 11th inst., the starting of the work on the deep drainage tunnel was celebrated. The day was a general holiday in the district and many hundreds of visitors came from Denver, Pueblo, and Colorado Springs to witness the proceedings and see the camp.
Lieutenant-Governor Harper started the compressor, and two drills that were already in place commenced work on the bore. The driving should now go on uninterruptedly.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 24.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 22Info Publication Date:
June 1, 1907Info found on page:
686Info Title:
Deep Drainage Tunnel Plans & Equipments
Denver, Colorado.
The Cripple Creek Adit.
—Equipment and Plans.
The bids for the driving of the drainage adit at Cripple Creek have been opened and the lowest proves to be between $20 and $21 per foot. If this bid is accepted, it will make the total cost of the completed adit considerably over $500,000. The signal importance of this deep drainage adit is derived from the fact that it will tap the main watercourse 740 ft. below the present deepest drainage, opening reserves of ore that cannot now be reached.
Its portal is in Cripple Creek canon, about six miles south of the town, and at an elevation of 8,020 ft.
From there it will be driven in a northerly direction 14,500 ft. to the workings of the El Paso mine, and, probably, thence easterly 11,000 ft. to the workings of the Vindicator.
The funds for the work have been contributed by all the principal companies operating in the district.
A shaft is likely to be sunk about 10,000 ft. from the portal, and the heading advanced both ways from this, which, with an average advance of ten feet per day in each heading, will permit the reaching of the El Paso workings in two years.
At the portal is installed a Norwalk 12-drill compressor, belt-driven from a 400-volt, 175-h.p. induction motor.
Three 50-k.w. Westinghouse step-down transformers take the power from the three-phase, 60 cycle, 6,600 volt, transmission line and deliver it to the motor, lighting-plant, and sawmill.
The power is drawn from the transmission line from Canyon City, which transmits at 20,000 volts to Fairview.
Ingersoll-Rand 3½-in. drills are used for driving.
A most serious problem in the driving of the adit will be the disposal of the waste from the adit, as the canon is extremely narrow at this point. If it were possible to drive headings from the workings of the El Paso a much greater rate of advance could be gained, but that is impossible, as the workings are now full of water to the 400-ft. level.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 25.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining and Scientific Press. Volume: 94 [XCIV], Issue No. 26Info Publication Date:
June 29, 1907Info found on page:
813Info Title:
Deep Drainage Tunnel Contract Awarded Lund & Stream
Cripple Creek, Colorado.
Contract for Drainage Adit.
The contract for driving the drainage adit has been awarded to Charles Lund and Charles Stream, and their $20,000 bond to insure the company against all liens has been approved. A rate of 350 ft. per month is to be maintained by the contractors, the adit to be 7 by 10 ft. in the clear. The Tunnel Company will furnish all timbers, pipe, and rails, as well as the necessary power. Seventy-five per cent of the amount due each month will be paid the contractors, the remainder to be withheld until the completion of the contract.
It is proposed to sink an intermediate shaft from the surface at a distance of 9,000 ft. from the mouth. This shaft will be between 600 to 700 ft. deep and will materially decrease the time of driving the bore. A boarding-house to accommodate the employees has been started by Charles Lund, as the mouth of the adit is several miles from the town of Cripple Creek.
Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 25.05.2021
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining Magazine. Volume: 1 [I], Issue No. 2Info Publication Date:
October, 1909Info found on page:
103Info Title:
Roosevel Drainage Tunnel with Excellent Progress
Denver—At Cripple Creek the big producers have practically all stopped pumping and development, and are grubbing around in upper workings until the Roosevelt adit shall be completed and drain the ground.
The 'tunnel' is making excellent progress. Since June, when the portal workings were connected with those on the intermediate shaft, there has been but one heading to push. A. E. Carlton, the contractor, has three shifts of men at work, and 410 ft. was accomplished in August.
At this rate the tunnel should begin to drain the mines in about 15 months. It is expected that shortly after there will be a heavy production from the lower levels and that Cripple Creek will experience a new boom.
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Abstracted and slightly rewritten from source text.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 23.02.2020
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 88 [LXXXVIII], Issue No. 20Info Publication Date:
November 13, 1909Info found on page:
994Info Title:
Roosevelt Tunnel to Enter Beacon Hill
Denver. Nov. 5—In the Cripple Creek district, the heading of the deep drainage or Roosevelt tunnel is now said to be entering Beacon hill, where the intersection of pay veins may soon be looked for. The total distance driven is 11,400 ft., and the remaining distance to the point where it is expected to tap the main water course of the Cripple Creek basin is about 3250 ft.
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Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 19.05.2019
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining Magazine. Volume: 1 [I], Issue No. 4Info Publication Date:
December, 1909Info found on page:
275Info Title:
Roosevelt Tunnel with Good Progress
The Roosevelt Tunnel at Cripple Creek pounds merrily along. In October the breast was advanced 380 ft., 3 shift work, making a total to November 1 of 11,400 ft. This is considered a good rate of progress for an adit driven with a single face in granite.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 23.02.2020
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal. Volume: 88 [LXXXVIII], Issue No. 24Info Publication Date:
December 11, 1909Info found on page:
1191Info Title:
Roosevelt Tunnel Advances
Denver, Dec. 4—The Cripple Creek drainage tunnel during November was advanced 298 ft. The full distance driven to Dec. 1 is 11,705 ft. The heading has been driven over 700 ft. into the granite of Beacon hill, and its extreme hardness has prevented more rapid progress. No moisture is observable in the breast of the tunnel, so tight is the rock, but it is expected that one of the numerous dikes traversing this section may soon be encountered and with it a flow of water. The minor water course tapped last month continuous to flow at the rate of about 100 gal. per min., but the water is carried off in the ditch and in no way interferes with work.
In anticipation of the results to be expected from the deep drainage tunnel, when the 3000 ft. of driving yet remaining is completed, properties on Beacon hill are making preparations to extend operations below the present water level.
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The Engineering and Mining Journal. Volume: 88 [LXXXVIII], Issue No. 26Info Publication Date:
December 25, 1909Info found on page:
1288Info Title:
Roosevel Tunnel Still Getting Worked On
Denver, Dec. 20—Owing to the exceedingly hard granite encountered in the face of the Roosevelt tunnel, a report has gained credence, that A. E. Carlton, the Cripple Creek banker who has the contract, is going to give it up. Those who know Mr. Carlton are well aware that he is not made of that sort of stuff.
However, he announces that there is no foundation for the rumor and he will continue the work to completion. The driving has advanced 11,830 ft. and there is less than 3000 ft. necessary to reach the El Paso shaft.
It is possible, however, that it may have to be driven a few hundred feet farther to reach the main channel of the underground water of the district.
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The Mining Magazine. Volume: 2 [II], Issue No. 1Info Publication Date:
January 1910Info found on page:
23Info Title:
Drainage Tunnel Into Beacon Hill
The drainage tunnel is now nearly 1000 ft. into the granite of Beacon hill and troublesome watercourses may be cut any day.
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The Mining Magazine. Volume: 2 [II], Issue No. 2Info Publication Date:
February 1910Info found on page:
107Info Title:
Roosevelt Tunnel Making Progress
Roosevelt drainage adit is making excellent progress and is expected in eight or ten months to reach the water-filled breccia. If the flow encountered be only as large as in the El Paso (7000 gal. per min.), it may be expected that the waterlevel will be lowered at a rate of 6 to 8 ft. per month.
Since at greater depth the head will be larger, the flow should also be faster and even speedier benefits may accrue. The water present in the district is estimated at 46 million gallons per foot of depth, the figures being based upon the discharge at the El Paso adit.
To pump this would cost, according to records, $125 per million gallons, and would entail a continued and unknown cost to take care of surface waters. The anxiety, therefore, with which operators await the completion of the drainage adit can well be understood.
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The Mining Magazine. Volume: 4 [IV], Issue No. 1Info Publication Date:
January 1911Info found on page:
35Info Title:
Roosevelt Deep Drainage Tunnel Benefits
The Cripple Creek district is already being benefited by the Roosevelt Deep Drainage Tunnel.
In the Mary McKinney mine the water-level is falling 12 ft. per month and the shaft is to be sunk 100 ft.
At the Portland the water is going down 3 inches each 24 hours though the tunnel heading is still two miles from the No. 1 shaft.
From the mouth of the adit the water is flowing 5000 gal. per minute.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 4Info Publication Date:
July 22, 1911Info found on page:
182Info Title:
Roosevelt Tunnel Drains El Paso Shaft Foot by Foot
The flow from the portal of the Roosevelt drainage tunnel is 5870 gal. per min., an increase of 400 gal. over the flow of June 15. This is due to the opening of the well in the bottom of the El Paso shaft.
On June 20 the flow had risen to about 7000 gal. per min., but it receded to 6000 gal. June 30 The water stands 40 ft. above the sump in the El Paso shaft, showing a recession of about 100 ft.
This drop came inside of a week, following the opening up of the drill well. The average recession in all of the mines of the district for June was between five and six feet.
Since November 21, when the first water was let into the tunnel through the drill well in the El Paso shaft, the water has gone down 48 ft., or about 8 ft. per month.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 5Info Publication Date:
July 29, 1911Info found on page:
226Info Title:
Roosevelt Tunnel Drains About a Foot Per Week
According to latest measurements made from the flow from the portal of the Roosevelt deep drainage tunnel at the end of the first half of July, there is about 5800 gal. of water per min. flowing, or just the same as was reported at the first of July.
The water is receding in the mines of the district at the rate of a foot per week, which is the lowest recession since the El Paso well was connected with the tunnel. The seepage water, which is carried out through the tunnel, amounts to about 1000 or 1200 gal. per min., and the additional 4800 gal. is from the main body of water.
The seepage-water estimate is made from the flow from the old El Paso tunnel. For several years there came from this tunnel about 1200 gal. per min., and it is believed this is the total seepage in the district.
The committee to secure money to be used to run the tunnel another 1200 ft. into Beacon hill, has made no report as yet, but its members are working to get the money.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 7Info Publication Date:
August 12, 1911Info found on page:
326Info Title:
Roosevelt Tunnel Might Be Extended
Roosevelt Tunnel—The committee appointed by President Beck to secure money to be used to drive the tunnel another 2000 ft. into Beacon hill reports that most of the money necessary has been subscribed.
An application to lease a portion of the El Paso ground to be worked through the Roosevelt tunnel has been filed with the company.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 9Info Publication Date:
August 26, 1911Info found on page:
418Info Title:
Roosevelt Tunnel Not Funded for Completion Yet
Denver Aug. 18—The story recently circulated in the Cripple Creek district that the necessary money for the completion of the drainage tunnel had been raised and work would commence immediately, is denied by those in authority.
It is stated that it will be some time before the subscriptions will be forthcoming, as some of the men who are expected to contribute are not in the State. Until they return there is no hope that the needed funds for driving the tunnel another 1200 ft. into Beacon hill will be raised. The present flow through the portal of the tunnel is about 5800 gal. per min. Of this, 1200 gal. is seepage water and the rest is from the main water body.
The recession in the El Paso mine is about two inches per day. An attempt will be made soon to open the well in the bottom of the El Paso shaft, connecting with the Roosevelt tunnel.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 11Info Publication Date:
September 9, 1911Info found on page:
512Info Title:
Roosevelt Drainage Tunnel Shall Be Extended
Denver, Sept. 1—Definite word has come that the Roosevelt drainage tunnel is to be extended. At a meeting of the directorate of the tunnel company, held in Colorado Springs, it was decided to drive the main head forward a distance of 1500 ft.
The question of finances has been the principal point at issue in holding back work upon the further extension of the tunnel, but this matter is practically settled in the announcement that $27,500 of the $50,000 required has been subscribed and that the balance will shortly be secured.
At the present time the tunnel is in 15,740 ft and has already lowered the water-level of the camp. The rate at which the water is disappearing has, however, not been sufficiently rapid to satisfy the desires of the operators, so that the news of the immediate taking up of the work will be received with much satisfaction.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 12Info Publication Date:
September 16, 1911Info found on page:
561Info Title:
Roosevelt Drainage Tunnel Talks About
Denver Sept. 8—Work on the drainage tunnel at Cripple Creek was stopped for want of funds but money is being raised for its continuation. There is some difference of opinion among the subscribers as to the future course. One party desires to continue the tunnel, which was stopped in the granite, straight ahead into the breccia area where the mines are, reaching that area somewhere close to the Elkton mine; the other party thinks it best to leave the main course, and develop a big water flow by following some of the dikes intersected. These dikes are in the granite.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 12Info Publication Date:
September 16, 1911Info found on page:
564Info Title:
Roosevelt Tunnel Said to Shall Crosscut the Vindicator
Vindicator—F. L. Sigel says that a crosscut 120 ft. long will be driven in each direction from the heading of the Roosevelt tunnel in order to open any water courses, but when the work will be started will be determined at the next meeting of the directors.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 13Info Publication Date:
September 23, 1911Info found on page:
609Info Title:
Roosevelt Tunnel Will Continue
Denver Sept. 12—A. E. Carlton, one of the directors of the Cripple Creek Drainage and Tunnel Company, has announced that the money necessary to continue the work, has been raised and that work has been started; whether the tunnel will be driven straight ahead into the breccia area, or follow some of the dikes in the granite, has not yet been announced. The former of course is the only plan which can possibly be of advantage to the entire ore-bearing area.
Engineer Countryman gives the flow from the portal as 5800 gal. per min. The tunnel was started in 1907 and is in now about three miles from the portal and while it is not altogether the success that was predicted, it has been of sufficient advantage in draining the mines, to encourage the mine operators of the district to furnish the money necessary to continue the work.
The average recession of water in the mines is stated to be about five feet per month, except in the rainy season.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 15Info Publication Date:
October 7, 1911Info found on page:
721Info Title:
Roosevelt Tunnel Rate of About 6-Foot Per Day
Roosevelt Tunnel— Work is going ahead on the drainage tunnel at the rate of about 6 ft. per day.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 20Info Publication Date:
November 11, 1911Info found on page:
959Info Title:
Roosevelt Drainage Tunnel Moving On
Denver, Oct. 31—The drainage-tunnel main heading has been driven east 100 ft., and the flow of water has increased 1000 gal. per min. At this rate of recession the deep levels of all the big mines will be unwatered in five or six months, resulting in larger forces of men being employed and a still further increase in production.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 22Info Publication Date:
November 25, 1911Info found on page:
1022Info Title:
Roosevelt Drainage Tunnel Struck Large Flow of Water
Cripple Creek Drainage
Denver Correspondence
On Friday night, Nov. 11, at a point 15,956 ft. from the portal of the Cripple Creek deep-drainage tunnel, a large flow of water was struck and so suddenly that some of the men employed barely escaped with their lives.
At present the flow is about 12,000 gal. per min. from the portal, but it will probably decrease somewhat from that.
In the C. K. & N. property, just above the drainage tunnel on Beacon hill, it is stated that the water has dropped 70 ft. during the last four days.
The Portland mine is said to be dry in its lowest workings, which will save $10,000 per month in pumping expenses.
The El Paso mine is also dry and work will be commenced at once in the 1000-ft. level.
No official measurements of the lowering of the water in the mines have yet been taken but it is said to be receding in all but the extreme eastern mines of the district.
To date the approximate cost of the tunnel has been $545,000 and it was commenced in July, 1907; the depth of the tunnel below the average water level in the mines of the district is about 730 ft. Its course is north 44 deg. 20 min. east for 14,845 ft. to a point 65 ft. east of the main shaft of the El Paso mine on Beacon hill and thence north 70 deg. east toward the Vindicator shaft on Bull hill.
At the heading where the work is going on the rock is comparatively dry. Whether the whole district will be permanently benefited by this new flow of water, will be definitely known in a few days.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 22Info Publication Date:
November 25, 1911Info found on page:
1056Info Title:
Portland Dry Below 1500-Foot
Portland—One of the permanent good effects of the recent flow of water encountered in the deep drainage tunnel is the fact that the Portland mine, on Nov. 14, was dry below the lowest or 1500-ft. level, and it is considerably over a mile in a straight line from the tunnel heading to the above mine, which in the past has produced gold ore worth $35,000,000, and paid nearly $9,000,000 in dividends.
It is now believed that the entire camp will be drained, making an average of 730 ft. in depth over the whole district, which can now be mined without the enormous cost of pumping hitherto involved.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 23Info Publication Date:
December 2, 1911Info found on page:
1101Info Title:
Drainage Tunnel Effect Reports
Denver Nov. 25—Reports of the good effects of the recent flow of water opened by the deep drainage tunnel in the Cripple Creek gold mines, are coming in rapidly, and it is now apparent that in all probability the deep levels of the mines over nearly the entire camp will be unwatered.
It is reported that the 1050-ft. level of Stratton's Independence, after being drowned since 1907, is now dry and being worked.
In the Portland mine, Manager Frank Small states that the water is only 30 in. above the 1050-ft. level, and that in four days the water receded 9¼ in. This level will be worked again soon.
In the Gold Coin shaft the water is said to have receded 3 ft.
In the C. K. & N. vein of the El Paso company a large body of high-grade ore has been opened in the south drift from the Fuller crosscut on the tunnel level. Twenty feet of drifting on the orebody has already been done. The 1000-ft. level of the El Paso shaft has been reclaimed and is being cleaned of the seven years' accumulation of debris.
At present the flow from the portal of the tunnel, according to Engineer Countryman's measurement, is 8000 gal. per min., and in the shafts of the mines on Battle mountain the water is receding at the rate of 3 in. per day. In the tunnel heading the rock is close and hard and but little water is coming from it. More than three-fourths of the entire flow is coming from the C. K. & N. vein.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 24Info Publication Date:
December 9, 1911Info found on page:
1147Info Title:
Roosevelt Tunnel Extension Choices
Denver Dec. 2—The question of extending the deep-drainage tunnel is now being considered, and whether to drive the main heading or to continue driving on the C. K. & N. vein, of the El Paso company, from the Fuller crosscut, and from which three-fourths of the present flow of 800 gal. per min. is coming.
The argument against this is that the management should not go on developing El Paso ground; the argument for it is that the two tunnels driven prior to this one, developed all the water and drained a large part of the district from the C. K. & N. vein.
The present tunnel heading is in red granite and the breccia area of Raven hill has not yet been reached, at which contact a larger body of water might be developed.
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The Engineering and Mining Journal. Volume: 92 [XCII], Issue No. 27Info Publication Date:
December 30, 1911Info found on page:
1291Info Title:
Roosevelt Tunnel Averages 10-Foot a Month in Draining
Denver Dec. 22—The drainage tunnel average recession of water, according to Engineer Countryman, is now 10 ft. per month in all the deep shafts.
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The Mining Magazine. Volume: 6 [VI], Issue No. 1Info Publication Date:
January 1912Info found on page:
32Info Title:
Roosevelt Tunnel Still Drains
In 1907 the lowest of the numerous adits driven to secure drainage, the so-called Roosevelt tunnel, was started, and has been in progress ever since. Some months ago, the breast had reached a point at which it might have been expected to develop a large flow, but the results were disappointing. Those in charge of the enterprise persisted, however, and their persistence was finally rewarded, for during the last week of November, the two drifts on the C. K. & N. vein developed a flow of 5500 gal. per min., and the total flow from the adit is now nearly 9000 gal. per min., corresponding to a rapid decrease in the water-level of the district.
The Battle mountain mines are being un-watered at the rate of 3.1 in. per day and the Portland has already recovered its 1500-ft. level, while the 1050-ft. level of the Stratton's Independence, flooded since 1907, has also been recovered.
Production in the district will be greatly stimulated, and a "boom" is confidently expected.
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Info Source From:
The Mining Magazine. Volume: 6 [VI], Issue No. 3Info Publication Date:
March 1912Info found on page:
191Info Title:
Roosevelt Tunnel Keeps on Draining
The future of the Cripple Creek district now looks brighter because of the increased effectiveness of the Roosevelt deep-drainage adit, which is now draining the mining area at the rate of 82 ft. per month.
The El Paso mine is dry to the drainage-adit level, which is 1338 ft. below the shaft collar, the Portland has recovered its 1500-ft. level, and the Independence its 1000-ft. station. This will make possible the mining of the deeper levels and, presumably, an increased production of high-grade ore.
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The Mining and Scientific Press. Volume: 107 [CVII], Issue No. 2Info Publication Date:
July 12, 1913Info found on page:
72Info Title:
Roosevelt Continues to Drain
The flow of water from the Roosevelt tunnel is now 6735 gal. per minute. The recession during June was about 72 in., and water-level is 30 ft. below No. 11 level of the Gold Coin shaft.
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Info Source From:
The Mining and Scientific Press. Volume: 107 [CVII], Issue No. 11Info Publication Date:
September 13, 1913Info found on page:
435Info Title:
Roosevelt Tunnel Flow Decreasing
Measurements taken early in September by T. R. Countryman, representing the Cripple Creek Deep Drainage & Tunnel Co., of the flow from the Roosevelt deep drainage tunnel, gave results of 6275 gal. per minute.
A comparison with the flow measurement of the corresponding period last year shows a falling off and decrease of 3725 gal. per minute, the gauge last September at this time recording 10,000 gal. per minute.
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Info Source From:
The Mining and Scientific Press. Volume: 107 [CVII], Issue No. 15Info Publication Date:
October 11, 1913Info found on page:
590Info Title:
Roosevelt Tunnel Flow
Measurements of the flow from the Roosevelt drainage tunnel show 6280 gal. per minute.
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Info Source From:
The Mining and Scientific Press. Volume: 107 [CVII], Issue No. 19Info Publication Date:
November 8, 1913Info found on page:
734Info Title:
Depth of the El Paso Mine
El Paso Con. G. M. Co., No. 1 shaft on Beacon Hill, is now connected with the Roosevelt deep-drainage tunnel at 1332 ft. from surface.
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The Mining and Scientific Press. Volume: 107 [CVII], Issue No. 19Info Publication Date:
November 8, 1913Info found on page:
734Info Title:
Depth of the Deep Drainage Tunnel Under Beacon Hill Summit
The Deep Drainage Tunnel, with its portal at an altitude of 8033 ft., attained its greatest depth under the summit of Beacon hill at an approximate depth of 1500 feet.
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Info Source From:
The Mining and Scientific Press. Volume: 107 [CVII], Issue No. 26Info Publication Date:
December 27, 1913Info found on page:
1030Info Title:
Roosevelt Tunnel Still Drains
At the beginning of December the Roosevelt drainage tunnel was yielding 6700 gal. of water per minute. A new measuring weir is to be constructed at the portal.
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Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
46Info Title:
Resumé of Data; Roosevelt Tunnel
Roosevelt tunnel: Cripple Creek, Colorado.
Purpose, mine drainage.
Length, 15,700 feet.
Cross-section, see Figure 7.
Rock, Pike's Peak granite.
Power, purchased electricity.
Ventilation, exhaust with pressure blower through 16-inch and 17-inch pipe.
Two and three Leyner drills in the heading.
Mounting, horizontal bar.
Three shifts per day. Three drillers, two helpers, and four muckers per shift.
Mule haulage, 16-cubic-foot cars.
Sixty- and 100-per-cent gelatine dynamite.
No timbering.
Average monthly progress per heading, 285 feet.
Cost per linear foot of tunnel, $27.27.
Started, February, 1908; completed, November, 1910.
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Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
169Info Title:
Roosevelt Tunnel Cars Data
In the Roosevelt Tunnel it was used the Turn-table and end-dump Type of car, with Capacity of 16 Cubic Feet, running on 18-inch gauge tracks, using 20 pounds rail and with Animals as Haulage power.
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Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
202Info Title:
Roosevelt Tunnel Illumination Method
Electric lamps is the type of Illumination chosen for the Roosevelt Tunnel.
Electric incandescent lamps possess a number of advantages for tunnel work. They give a brilliant and steady light—one that is not affected by drafts and neither pollutes the air with soot nor vitiates it by consuming the oxygen. By combining several of them in a cluster, plenty of light in the heading is obtained for the drillers and shovelers, tending toward efficiency. To offset this advantage, however, the fact remains that unless they are used in connection with electric locomotives, drills, or similar machinery, the cost of lamp installation is almost prohibitive; even with the electric appliances in use the extra wiring and the lamps themselves are expensive, while the latter are subject to considerable loss through breakage. Electric lamps are also at a disadvantage because they are not easily portable and the removal and replacement of bulbs and wires in the heading before and after blasting complicate an already involved situation. Moreover, this means of illumination is uncertain, especially in wet tunnels, because the chance occurrence of a short circuit through moisture, accident, or carelessness throws the entire work in darkness, and if other means of lighting are not at hand, stops all work until the trouble can be remedied. Again, whereas the use of electricity under ground is always attended with some danger, this is especially true in the case of lighting appliances; the supposition is that the wires are protected, but the rough usage which they are subjected soon destroys insulation, rendering persons who handle them (as they must do frequently) subject to severe shock.
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Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
220Info Title:
Roosevelt Tunnel Hole Info
The Roosevelt Tunnel used 24-26 Numbers of holes in Driving its Tunnel Heading in Hard Granite Rock with 60 square feet of Approximate area of heading and with 2.3 – 2.5 square feet of Heading per hole in Igneous rocks.
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Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
235Info Title:
Roosevelt Tunnel Hole Making Info
The Roosevelt Tunnel used Wedge as Type of cut, with 6 feet as Height of heading and 10 feet as Width of heading, while the Average depth of cut-holes was 7 feet and the Average depth of other holes was 6 feet, and the Average depth round drilled was 6 feet, with 60 Percentage average depth to width of heading, all in Hard granite Rock.
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Abstracted from a table, hence restyled and rewritten from source text with info from many other tunnels around the world.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
236Info Title:
Roosevelt Tunnel Ammunition Used
The Roosevelt Tunnel used Gelatine as Kind of Dynamite Used, with a Strength of 40%, 60% and 100%.
Gelatine dynamite is a combination of a certain amount of blasting gelatine (varying according to the strength desired) and a suitable absorbent. The former is made by adding a small percentage of gun-cotton (nitrocellulose) to liquid nitroglycerin, thus producing a jelly-like mass that has greater explosive qualities than either of its constituents, but which is much less sensitive to shock than nitroglycerine. The absorbent is usually some combustible material (wood pulp is frequently employed) to which has been added a sufficient amount of sodium nitrate to supply the necessary oxygen for its combustion. By the use of such a combustible absorbent, instead of the inert one formerly employed with straight nitroglycerine dynamite, the gases generated by the burning of the wood pulp add to the volume produced by the detonation of the explosive constituent, and the extra heat generated in this combustion adds greatly to the total intensity of the reaction.
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Abstracted from a table, hence restyled and rewritten from source text with info from many other tunnels around the world.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
348Info Title:
Roosevelt Tunnel Cost Info
ROOSEVELT TUNNEL
Location: Cripple Creek, Colorado.
Purpose: Mine drainage.
Cross-section: Rectangular, with large ditch at the side.
Size: 10 feet wide by 6 feet high.
Length: 15,700 feet.
Rock: Pike's Peak granite, chiefly.
Type of power: Purchased electric current.
Ventilator: Pressure blower.
Size of ventilating pipe: 16 and 17 inches.
Drills: 3, pneumatic hammer.
Mounting of drills: Horizontal bar.
Number of holes per round: 24, usually.
Average depth of round: 6 to 7 feet.
Number of drillers and helpers per shift: 3 drillers; 2 helpers.
Number of drill shifts per day: 3.
Explosive: 40 per cent., 60 per cent., and some 100 per cent, gelatine dynamite.
Number of muckers per shift: 4, usually.
Number of mucking shifts per day: 3.
Type of haulage: Horses and mules.
Wages:
Drillers, $5.00
helpers, $4.00
muckers, $3.50
power engineer, $4.00
blacksmith. $5.00
helper, $3.50
dumpman, $3.50
drivers, inside, $5.00
drivers, outside, $4.00.
Maximum progress in any calendar month: 435 feet, portal heading, January, 1909.
Average monthly progress: Portal heading. 300 feet; shaft headings, 270 feet; all headings, 285 feet.
COST OF DRIVING ROOSEVELT TUNNEL
Total cost of portal work
$111,980.06
Contractor's percentage
11,404.88
Cost of shaft headings
262,126.55
—————————
Total cost of tunnel
$385,511.49
Number of feet driven
14,167
Average cost per foot
27.21
COST OF DRIVING THE PORTAL HEADING
Month
Footage
Cost per Foot
Feb. and March, 1908
514
$22.690
April
262
30.970
May
268
26.760
June
187
35.010
July
203
29.600
August
300
21.760
September
351
19.600
October
287
23.000
November
360
21.120
December
334
18.350
January, 1909
435
16.410
February
290
22.206
March
340
21.745
April
316
21.266
May
402
18.762
June (8 days)
62
40.600
COST OF DRIVING SHAFT HEADINGS
Month
Footage
Cost per Foot
October, 1908
(2 headings)
49
$105.52
November
"
141
44.38
December
''
177
40.11
January, 1909
''
261
24.06
February
''
601
23.70
March
''
639
26.256
April
''
670
25.02
May
''
552
28.34
June
''
498
27.375
July
(1 heading)
319
32.871
August
''
410
27.747
September
''
355
32.40
October
''
380
28.178
November
''
298
34.20
December
''
251
35.153
January, 1910
''
282
28.82
February
''
259
30.636
March
''
344
27.62
April
''
376
25.313
May
''
393
24.856
June
''
373
26.616
July
''
350
25.247
August
''
372
25.029
September
''
342
28.45
October
''
372
27.361
November
''
192
27.786
TYPICAL DISTRIBUTION OF EXPENSES
Portal heading, July, 1908
203 Feet
Cost per Foot of Tunnel
Machinery and repairs
$ 0.61
Air drills and parts
.99
Picks, shovels, and steel
1.90
Ditch men
1.09
Explosives
6.90
Candles
.36
Oil and waste
.09
Electric power
2.06
Blacksmith supplies
.09
General expense
.16
Liability insurance
.17
Lumber ties and wedges
.01
Horses and feed
.01
Compressor men
1.79
Drillers and helpers
4.21
Blacksmiths and helpers
3.43
Muckers and drivers
4.11
Foremen
1.50
Bookkeeper
.12
—————————
$ 29.60
TYPICAL DISTRIBUTION OF EXPENSES
Shaft heading, February, 1910
259 Feet
Cost per Foot of Tunnel
Maintenance of buildings, tents, etc
$ 0.096
Machinery and repairs
1.158
Air drills and parts
1.930
Shovels, picks, and steel
1.930
Pipe and fittings
.193
Ditch men
1.480
Explosives
5.032
Lamps and candles
.217
Oil and waste
.252
Electric power
2.440
Blacksmith supplies
.150
Liability insurance
.213
General expense
.342
Lumber, ties, and wedges
.119
Horses and feed
.324
Machine men and helpers
4.050
Muckers
3.065
Blacksmiths and helpers
1.362
Engineers
1.300
Pipe and track men
.675
Drivers and dumpmen
2.355
Foremen
1.753
Mine telephone
.008
Bookkeeper
.193
—————————
$30.636
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
103Info Title:
Roosevel Tunnel Air Pressure
The Roosevelt Tunnel uses 110 pounds as the Compressed Air Pressure at its Plant.
Notes/Text been Edited:
Abstracted from a table, hence restyled and rewritten from source text with info from many other tunnels around the world.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
114Info Title:
Roosevelt Tunnel Direction of Air Current
The Roosevelt Tunnel Direction of Air Current is Ordinarily as Exhaust, and After Shooting it is also as Exhaust.
Notes/Text been Edited:
Abstracted from a table, hence restyled and rewritten from source text with info from many other tunnels around the world.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914]. Volume: 1 [I], Issue No. 1Info Publication Date:
1914Info found on page:
120Info Title:
Roosevelt Tunnel Pressure of Ventilating Current
The Roosevelt Tunnel Pressure Required to Force Amount of Air Equivalent to Catalogue Rating of Ventilating Machine to Proposed Length of Tunnel Through Pipe Chosen is 4800 cubic feet per minute of Rated capacity, using a 16½ inch Diameter ventilating pipe, with a Stated length of ventilation pipe when tunnel is completed of 15700 feet and with Pressure required of 4.38 pounds per square inch.
Notes/Text been Edited:
Abstracted from a table, hence restyled and rewritten from source text with info from many other tunnels around the world.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 11.03.2020
Type/Category of Info:
Article
Info Source From:
The Mining Magazine. Volume: 12 [XII], Issue No. 6Info Publication Date:
June 1915Info found on page:
309Info Title:
Roosevelt Tunnel Extends
At Cripple Creek the Roosevelt tunnel is to be extended to the Vindicator.
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Above Info was Last Updated on 10.10.2021 (18:51:24)
Above Info was First Seen 05.05.2021
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 118 [CXVIII], Issue No. 2Info Publication Date:
January 11, 1919Info found on page:
62Info Title:
Portland No. 2 Soon Connected with Roosevelt Tunnel
The Portland cross-cut from the Roosevelt drainage-tunnel was on December 14, seventy feet distant from its objective point under No. 2 shaft, and the shaft had been sunk to a depth ot 2113 ft., or 20 ft. above the tunnel-level.
The work is estimated to be completed and connection made by the end of the year.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 02.03.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 118 [CXVIII], Issue No. 2Info Publication Date:
January 11, 1919Info found on page:
62Info Title:
Cresson Connected with the Roosevelt Tunnel
The Cresson company's main shaft has been connected with the Roosevelt tunnel cross-cut at a depth of 1950 ft., and the station and shaft have been timbered.
Production from the two orebodies under development at the tunnel-level, however, will be carried on through the Elkton shaft.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 03.03.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 118 [CXVIII], Issue No. 2Info Publication Date:
January 11, 1919Info found on page:
62Info Title:
Roosevelt Tunnel Facts
The Roosevelt tunnel may now be considered completed, as work has ceased with the heading in the centre of the Hawkeye claim of the Portland company. The total length of the tunnel from portal to breast is 24,355 ft., or 4.6 miles, and it is one of the longest in the United States.
The Roosevelt tunnel has taken 11 years to drive and its cost has been $812,000. This sum includes sinking of an intermediate shaft 700 ft., and a raise of 160 ft. to connect with the Elkton main shaft, through which the tunnel is now operated. The average cost has been $33.30 per foot.
The saving in pumping costs alone is conservatively estimated at $3,000,000.
In 1918 two long drifts were driven from the tunnel, one of 1720 ft. to connect with the Cresson shaft; the other 2000 ft. connecting with the Portland No. 2 shaft, at a depth of 2133 ft.
The flow from the tunnel has varied from 17.000 gal. per min. in 1906 to the present flow of 2500 gal. The district has been effectively drained, as not a mine is pumping.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 03.03.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 118 [CXVIII], Issue No. 26Info Publication Date:
June 28, 1919Info found on page:
897Info Title:
Roosevelt Drainage Tunnel Flow From Portland
Water from the Portland flowing into the Roosevelt drainage tunnel is only 50 gallons per minute.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 07.03.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 121 [CXXI], Issue No. 24Info Publication Date:
December 11, 1920Info found on page:
850Info Title:
Roosevel Tunnel to Be Used to Operate the Rose Nicol
The Roosevelt tunnel traverses the Rose Nicol from west to east at an approximate depth of 2000 ft., and the Reva Gold Mining Co. management plans to operate the leased mine from the tunnel-level.
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Above Info was First Seen 02.03.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 122 [CXXII], Issue No. 7Info Publication Date:
February 12, 1921Info found on page:
235Info Title:
New Portland No. 2 Findings Below Roosevelt Tunnel Level
The Roosevelt tunnel lateral connects with the Portland shaft at 2131 ft., so that the new discovery of High-grade ore found at a depth of 2450 ft. in No. 2 shaft of the Portland mine on Battle Mountain, is 319 ft. below the tunnel-level and at an elevation of 7794 ft.
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Abstracted and partly rewritten/restructured from source text.Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 21.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 122 [CXXII], Issue No. 11Info Publication Date:
March 12, 1921Info found on page:
370Info Title:
Roosevelt Tunnel Connection to Elkton Info
The main Elkton shaft on the Raven hill connects with the Roosevelt drainage tunnel at 1675 ft.
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Above Info was First Seen 21.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 122 [CXXII], Issue No. 21Info Publication Date:
May 21, 1921Info found on page:
723Info Title:
Vindicator Considering Extending the Roosevelt Drainage Tunnel
Extension of the Roosevelt drainage tunnel from its present terminal on the Portland estate to the Vindicator Con. Gold Mining Co.'s No. 2 shaft, a distance of approximately 3000 ft., is under consideration by the Vindicator directorate. The estimated cost is between $100,000 and $150,000.
Rich ore has recently been found in the Vindicator mine at a depth of 2000 ft., but the cost of raising water is heavy and eats up profits.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 23.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 123 [CXXIII], Issue No. 4Info Publication Date:
July 23, 1921Info found on page:
136Info Title:
Roosevelt Deep-Drainage Tunnel Connection to Queen Mine
The Roosevelt deep-drainage tunnel, at about 1700 feet, is planned to be connect to via cross-cutting the ground from a new 950-ft. level to be sunk on the Queen mine in Eclipse gulch, owned by the Queen Gold Mining Co., controlled by the John T. Milliken estate.
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Above Info was First Seen 14.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 123 [CXXIII], Issue No. 7Info Publication Date:
August 13, 1921Info found on page:
237Info Title:
Roosevelt Tunnel Extension Plans
Negotiations looking to extension of the Roosevelt deep-drainage tunnel, some 3000 ft. distant from the Golden Cycle shaft, are under way, but no agreement has as yet been reached. The Vindicator Consolidated company is extending a lateral north-west from the 19th level of the Golden Cycle shaft, corresponding to what will be the 20th level of the Vindicator No. 2. The objective is the present terminal point of the Roosevelt deep-drainage tunnel.
The extension of the tunnel rests with other companies owning property in the Bull Hill area, who are expected to contribute to the general cost, estimated at $80,000. The Vindicator company, however, will extend the deep lateral to its end-line at its own expense, and at the present time is draining the Bull Hill area, and it feels that property owners should contribute toward the tunnel extension through other than Vindicator holdings.
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Above Info was First Seen 16.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 123 [CXXIII], Issue No. 20Info Publication Date:
November 12, 1921Info found on page:
684Info Title:
Vindicator Company Extends the Roosevelt
The Vindicator company has started an extension of the Roosevelt tunnel, from its present terminal at the Portland, to cut through the Vindicator No. 2 shaft.
Sinking has also been resumed from the station at the 2000-ft. level of the Vindicator.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 19.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 124 [CXXIV], Issue No. 1Info Publication Date:
January 7, 1922Info found on page:
28Info Title:
Roosevelt Tunnel Being Extended
The Roosevelt tunnel is being extended at both ends by the Vindicator company and of about 3000 ft. required to make connection one-half has been completed. Rapid work has been done by the tunnel crews.
The crew at the Portland end progressed 15 ft. daily during the first part of December.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 27.01.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 124 [CXXIV], Issue No. 8Info Publication Date:
February 25, 1922Info found on page:
273Info Title:
Roosevelt Deep Drainage Tunnel Connection with Vindicator Nearly Done
The main shaft of the Vindicator Consolidated company is now 2100 ft. deep, and work is in progress to connect with the Roosevelt Deep Drainage tunnel at this depth. The total distance of 3000 ft. has been two-thirds covered and will be completed early in March.
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Above Info was First Seen 12.02.2020
Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press. Volume: 124 [CXXIV], Issue No. 10Info Publication Date:
March 11, 1922Info found on page:
343Info Title:
Roosevelt Tunnel Extension to Vindicator Nearly Done
The Vindicator company reports progress with the Roosevelt Tunnel extension and expects to make connection by the end of March.
Above Info was Last Updated on 30.10.2020 (11:04:30)
Above Info was First Seen 12.02.2020