Detailed/More Info:
Roosevelt Tunnel
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Info Database Last Updated 28.10.2020 (Entity News entries: 50)
Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining Magazine, October, 1909. Volume: 1 [I], Issue No.: 2
Info found on page:
103
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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.
Above Info was Last Updated on 23.02.2020 (21:10:32)
Above Info was First Seen 23.02.2020

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, November 13, 1909. Volume: 88 [LXXXVIII], Issue No.: 20
Info found on page:
994
Info 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 20.05.2019 (15:44:34)
Above Info was First Seen 19.05.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Mining Magazine, December, 1909. Volume: 1 [I], Issue No.: 4
Info found on page:
275
Info 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 23.02.2020 (21:24:24)
Above Info was First Seen 23.02.2020

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, December 11, 1909. Volume: 88 [LXXXVIII], Issue No.: 24
Info found on page:
1191
Info 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 30.05.2019 (11:59:34)
Above Info was First Seen 30.05.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, December 25, 1909. Volume: 88 [LXXXVIII], Issue No.: 26
Info found on page:
1288
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 01.06.2019 (09:00:44)
Above Info was First Seen 30.05.2019

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal, July 22, 1911. Volume: 92 [XCII], Issue No.: 4
Info found on page:
182
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 25.03.2019 (17:51:13)
Above Info was First Seen 25.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, July 29, 1911. Volume: 92 [XCII], Issue No.: 5
Info found on page:
226
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 25.03.2019 (22:41:27)
Above Info was First Seen 25.03.2019

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal, August 12, 1911. Volume: 92 [XCII], Issue No.: 7
Info found on page:
326
Info 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 26.03.2019 (14:11:53)
Above Info was First Seen 26.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, August 26, 1911. Volume: 92 [XCII], Issue No.: 9
Info found on page:
418
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 26.03.2019 (16:51:01)
Above Info was First Seen 26.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, September 9, 1911. Volume: 92 [XCII], Issue No.: 11
Info found on page:
512
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 26.03.2019 (20:49:30)
Above Info was First Seen 26.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, September 16, 1911. Volume: 92 [XCII], Issue No.: 12
Info found on page:
561
Info 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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Above Info was Last Updated on 26.03.2019 (21:19:35)
Above Info was First Seen 26.03.2019

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal, September 16, 1911. Volume: 92 [XCII], Issue No.: 12
Info found on page:
564
Info 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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Above Info was Last Updated on 26.03.2019 (22:11:09)
Above Info was First Seen 26.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, September 23, 1911. Volume: 92 [XCII], Issue No.: 13
Info found on page:
609
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 26.03.2019 (22:40:05)
Above Info was First Seen 26.03.2019

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal, October 7, 1911. Volume: 92 [XCII], Issue No.: 15
Info found on page:
721
Info 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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Above Info was Last Updated on 27.03.2019 (12:41:35)
Above Info was First Seen 27.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, November 11, 1911. Volume: 92 [XCII], Issue No.: 20
Info found on page:
959
Info 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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Above Info was Last Updated on 28.03.2019 (00:10:42)
Above Info was First Seen 27.03.2019

Type/Category of Info:
Article
Info Source From:
The Engineering and Mining Journal, November 25, 1911. Volume: 92 [XCII], Issue No.: 22
Info found on page:
1022
Info Title:
Roosevelt Drainage Tunnel Struck Large Flow of Water
Cripple Creek Drainage
graphic for visual presentation of textDenver Correspondence
graphic for visual presentation of text 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.
graphic for visual presentation of text At present the flow is about 12,000 gal. per min. from the portal, but it will probably decrease somewhat from that.
graphic for visual presentation of textIn 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.
graphic for visual presentation of textThe Portland mine is said to be dry in its lowest workings, which will save $10,000 per month in pumping expenses.
graphic for visual presentation of textThe El Paso mine is also dry and work will be commenced at once in the 1000-ft. level.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 28.03.2019 (01:10:09)
Above Info was First Seen 28.03.2019

Type/Category of Info:
General Mining News
Info Source From:
The Engineering and Mining Journal, November 25, 1911. Volume: 92 [XCII], Issue No.: 22
Info found on page:
1056
Info 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 28.03.2019 (01:29:43)
Above Info was First Seen 28.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, December 2, 1911. Volume: 92 [XCII], Issue No.: 23
Info found on page:
1101
Info 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.
graphic for visual presentation of text It is reported that the 1050-ft. level of Stratton's Independence, after being drowned since 1907, is now dry and being worked.
graphic for visual presentation of text 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.
graphic for visual presentation of text In the Gold Coin shaft the water is said to have receded 3 ft.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 30.03.2019 (10:32:47)
Above Info was First Seen 29.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, December 9, 1911. Volume: 92 [XCII], Issue No.: 24
Info found on page:
1147
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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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Above Info was Last Updated on 30.03.2019 (17:55:28)
Above Info was First Seen 30.03.2019

Type/Category of Info:
Special/Editorial Correspondence
Info Source From:
The Engineering and Mining Journal, December 30, 1911. Volume: 92 [XCII], Issue No.: 27
Info found on page:
1291
Info 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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Above Info was Last Updated on 31.03.2019 (12:12:17)
Above Info was First Seen 31.03.2019

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, July 12, 1913. Volume: 107 [CVII], Issue No.: 2
Info found on page:
72
Info 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.
Above Info was Last Updated on 22.10.2019 (10:37:57)
Above Info was First Seen 21.10.2019

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, September 13, 1913. Volume: 107 [CVII], Issue No.: 11
Info found on page:
435
Info 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.
graphic for visual presentation of text 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.
Above Info was Last Updated on 12.11.2019 (22:08:13)
Above Info was First Seen 12.11.2019

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, October 11, 1913. Volume: 107 [CVII], Issue No.: 15
Info found on page:
590
Info Title:
Roosevelt Tunnel Flow
Measurements of the flow from the Roosevelt drainage tunnel show 6280 gal. per minute.
Above Info was Last Updated on 18.11.2019 (11:19:39)
Above Info was First Seen 18.11.2019

Type/Category of Info:
Article
Info Source From:
The Mining and Scientific Press, November 8, 1913. Volume: 107 [CVII], Issue No.: 19
Info found on page:
734
Info 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.
Above Info was Last Updated on 26.11.2019 (10:27:34)
Above Info was First Seen 20.11.2019

Type/Category of Info:
Article
Info Source From:
The Mining and Scientific Press, November 8, 1913. Volume: 107 [CVII], Issue No.: 19
Info found on page:
734
Info 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.
Above Info was Last Updated on 26.11.2019 (10:27:34)
Above Info was First Seen 20.11.2019

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, December 27, 1913. Volume: 107 [CVII], Issue No.: 26
Info found on page:
1030
Info 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.
Above Info was Last Updated on 27.01.2020 (10:28:14)
Above Info was First Seen 27.01.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
46
Info Title:
Resumé of Data; Roosevelt Tunnel
Roosevelt tunnel: Cripple Creek, Colorado.
graphic for visual presentation of textPurpose, mine drainage.
graphic for visual presentation of textLength, 15,700 feet.
graphic for visual presentation of textCross-section, see Figure 7.
graphic for visual presentation of textRock, Pike's Peak granite.
graphic for visual presentation of textPower, purchased electricity.
graphic for visual presentation of textVentilation, exhaust with pressure blower through 16-inch and 17-inch pipe.
graphic for visual presentation of textTwo and three Leyner drills in the heading.
graphic for visual presentation of textMounting, horizontal bar.
graphic for visual presentation of textThree shifts per day. Three drillers, two helpers, and four muckers per shift.
graphic for visual presentation of textMule haulage, 16-cubic-foot cars.
graphic for visual presentation of textSixty- and 100-per-cent gelatine dynamite.
graphic for visual presentation of textNo timbering.
graphic for visual presentation of textAverage monthly progress per heading, 285 feet.
graphic for visual presentation of textCost per linear foot of tunnel, $27.27.
graphic for visual presentation of textStarted, February, 1908; completed, November, 1910.
Above Info was Last Updated on 11.03.2020 (14:26:26)
Above Info was First Seen 10.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
169
Info 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.
Above Info was Last Updated on 11.03.2020 (18:26:25)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
202
Info Title:
Roosevelt Tunnel Illumination Method
Electric lamps is the type of Illumination chosen for the Roosevelt Tunnel.
graphic for visual presentation of text 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.
Above Info was Last Updated on 11.03.2020 (19:26:19)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
220
Info 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.
Above Info was Last Updated on 11.03.2020 (19:36:01)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
235
Info 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.
Above Info was Last Updated on 11.03.2020 (20:00:14)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
236
Info Title:
Roosevelt Tunnel Ammunition Used
The Roosevelt Tunnel used Gelatine as Kind of Dynamite Used, with a Strength of 40%, 60% and 100%.
graphic for visual presentation of text 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.
Above Info was Last Updated on 11.03.2020 (20:07:59)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
348
Info Title:
Roosevelt Tunnel Cost Info
ROOSEVELT TUNNEL
graphic for visual presentation of textLocation: Cripple Creek, Colorado.
graphic for visual presentation of textPurpose: Mine drainage.
graphic for visual presentation of textCross-section: Rectangular, with large ditch at the side.
graphic for visual presentation of textSize: 10 feet wide by 6 feet high.
graphic for visual presentation of textLength: 15,700 feet.
graphic for visual presentation of textRock: Pike's Peak granite, chiefly.
graphic for visual presentation of textType of power: Purchased electric current.
graphic for visual presentation of textVentilator: Pressure blower.
graphic for visual presentation of textSize of ventilating pipe: 16 and 17 inches.
graphic for visual presentation of textDrills: 3, pneumatic hammer.
graphic for visual presentation of textMounting of drills: Horizontal bar.
graphic for visual presentation of textNumber of holes per round: 24, usually.
graphic for visual presentation of textAverage depth of round: 6 to 7 feet.
graphic for visual presentation of textNumber of drillers and helpers per shift: 3 drillers; 2 helpers.
graphic for visual presentation of textNumber of drill shifts per day: 3.
graphic for visual presentation of textExplosive: 40 per cent., 60 per cent., and some 100 per cent, gelatine dynamite.
graphic for visual presentation of textNumber of muckers per shift: 4, usually.
graphic for visual presentation of textNumber of mucking shifts per day: 3.
graphic for visual presentation of textType of haulage: Horses and mules.
graphic for visual presentation of textWages:
graphic for visual presentation of textDrillers, $5.00
graphic for visual presentation of texthelpers, $4.00
graphic for visual presentation of textmuckers, $3.50
graphic for visual presentation of textpower engineer, $4.00
graphic for visual presentation of textblacksmith. $5.00
graphic for visual presentation of texthelper, $3.50
graphic for visual presentation of textdumpman, $3.50
graphic for visual presentation of textdrivers, inside, $5.00
graphic for visual presentation of textdrivers, outside, $4.00.
graphic for visual presentation of textMaximum progress in any calendar month: 435 feet, portal heading, January, 1909.
graphic for visual presentation of textAverage monthly progress: Portal heading. 300 feet; shaft headings, 270 feet; all headings, 285 feet.
graphic for visual presentation of text
graphic for visual presentation of textCOST OF DRIVING ROOSEVELT TUNNEL
graphic for visual presentation of textTotal cost of portal work
graphic for visual presentation of text$111,980.06
graphic for visual presentation of textContractor's percentage
graphic for visual presentation of text11,404.88
graphic for visual presentation of textCost of shaft headings
graphic for visual presentation of text262,126.55
graphic for visual presentation of text
graphic for visual presentation of text—————————
graphic for visual presentation of textTotal cost of tunnel
graphic for visual presentation of text$385,511.49
graphic for visual presentation of textNumber of feet driven
graphic for visual presentation of text14,167
graphic for visual presentation of textAverage cost per foot
graphic for visual presentation of text27.21
graphic for visual presentation of text
graphic for visual presentation of textCOST OF DRIVING THE PORTAL HEADING
graphic for visual presentation of textMonth
graphic for visual presentation of textFootage
graphic for visual presentation of textCost per Foot
graphic for visual presentation of textFeb. and March, 1908
graphic for visual presentation of text514
graphic for visual presentation of text$22.690
graphic for visual presentation of textApril
graphic for visual presentation of text262
graphic for visual presentation of text30.970
graphic for visual presentation of textMay
graphic for visual presentation of text268
graphic for visual presentation of text26.760
graphic for visual presentation of textJune
graphic for visual presentation of text187
graphic for visual presentation of text35.010
graphic for visual presentation of textJuly
graphic for visual presentation of text203
graphic for visual presentation of text29.600
graphic for visual presentation of textAugust
graphic for visual presentation of text300
graphic for visual presentation of text21.760
graphic for visual presentation of textSeptember
graphic for visual presentation of text351
graphic for visual presentation of text19.600
graphic for visual presentation of textOctober
graphic for visual presentation of text287
graphic for visual presentation of text23.000
graphic for visual presentation of textNovember
graphic for visual presentation of text360
graphic for visual presentation of text21.120
graphic for visual presentation of textDecember
graphic for visual presentation of text334
graphic for visual presentation of text18.350
graphic for visual presentation of textJanuary, 1909
graphic for visual presentation of text435
graphic for visual presentation of text16.410
graphic for visual presentation of textFebruary
graphic for visual presentation of text290
graphic for visual presentation of text22.206
graphic for visual presentation of textMarch
graphic for visual presentation of text340
graphic for visual presentation of text21.745
graphic for visual presentation of textApril
graphic for visual presentation of text316
graphic for visual presentation of text21.266
graphic for visual presentation of textMay
graphic for visual presentation of text402
graphic for visual presentation of text18.762
graphic for visual presentation of textJune (8 days)
graphic for visual presentation of text62
graphic for visual presentation of text40.600
graphic for visual presentation of text
graphic for visual presentation of textCOST OF DRIVING SHAFT HEADINGS
graphic for visual presentation of textMonth
graphic for visual presentation of text
graphic for visual presentation of textFootage
graphic for visual presentation of textCost per Foot
graphic for visual presentation of textOctober, 1908
graphic for visual presentation of text(2 headings)
graphic for visual presentation of text49
graphic for visual presentation of text$105.52
graphic for visual presentation of textNovember
graphic for visual presentation of text"
graphic for visual presentation of text141
graphic for visual presentation of text44.38
graphic for visual presentation of textDecember
graphic for visual presentation of text''
graphic for visual presentation of text177
graphic for visual presentation of text40.11
graphic for visual presentation of textJanuary, 1909
graphic for visual presentation of text''
graphic for visual presentation of text261
graphic for visual presentation of text24.06
graphic for visual presentation of textFebruary
graphic for visual presentation of text''
graphic for visual presentation of text601
graphic for visual presentation of text23.70
graphic for visual presentation of textMarch
graphic for visual presentation of text''
graphic for visual presentation of text639
graphic for visual presentation of text26.256
graphic for visual presentation of textApril
graphic for visual presentation of text''
graphic for visual presentation of text670
graphic for visual presentation of text25.02
graphic for visual presentation of textMay
graphic for visual presentation of text''
graphic for visual presentation of text552
graphic for visual presentation of text28.34
graphic for visual presentation of textJune
graphic for visual presentation of text''
graphic for visual presentation of text498
graphic for visual presentation of text27.375
graphic for visual presentation of textJuly
graphic for visual presentation of text(1 heading)
graphic for visual presentation of text319
graphic for visual presentation of text32.871
graphic for visual presentation of textAugust
graphic for visual presentation of text''
graphic for visual presentation of text410
graphic for visual presentation of text27.747
graphic for visual presentation of textSeptember
graphic for visual presentation of text''
graphic for visual presentation of text355
graphic for visual presentation of text32.40
graphic for visual presentation of textOctober
graphic for visual presentation of text''
graphic for visual presentation of text380
graphic for visual presentation of text28.178
graphic for visual presentation of textNovember
graphic for visual presentation of text''
graphic for visual presentation of text298
graphic for visual presentation of text34.20
graphic for visual presentation of textDecember
graphic for visual presentation of text''
graphic for visual presentation of text251
graphic for visual presentation of text35.153
graphic for visual presentation of textJanuary, 1910
graphic for visual presentation of text''
graphic for visual presentation of text282
graphic for visual presentation of text28.82
graphic for visual presentation of textFebruary
graphic for visual presentation of text''
graphic for visual presentation of text259
graphic for visual presentation of text30.636
graphic for visual presentation of textMarch
graphic for visual presentation of text''
graphic for visual presentation of text344
graphic for visual presentation of text27.62
graphic for visual presentation of textApril
graphic for visual presentation of text''
graphic for visual presentation of text376
graphic for visual presentation of text25.313
graphic for visual presentation of textMay
graphic for visual presentation of text''
graphic for visual presentation of text393
graphic for visual presentation of text24.856
graphic for visual presentation of textJune
graphic for visual presentation of text''
graphic for visual presentation of text373
graphic for visual presentation of text26.616
graphic for visual presentation of textJuly
graphic for visual presentation of text''
graphic for visual presentation of text350
graphic for visual presentation of text25.247
graphic for visual presentation of textAugust
graphic for visual presentation of text''
graphic for visual presentation of text372
graphic for visual presentation of text25.029
graphic for visual presentation of textSeptember
graphic for visual presentation of text''
graphic for visual presentation of text342
graphic for visual presentation of text28.45
graphic for visual presentation of textOctober
graphic for visual presentation of text''
graphic for visual presentation of text372
graphic for visual presentation of text27.361
graphic for visual presentation of textNovember
graphic for visual presentation of text''
graphic for visual presentation of text192
graphic for visual presentation of text27.786
graphic for visual presentation of text
graphic for visual presentation of textTYPICAL DISTRIBUTION OF EXPENSES
graphic for visual presentation of textPortal heading, July, 1908
graphic for visual presentation of text203 Feet
graphic for visual presentation of text
graphic for visual presentation of textCost per Foot of Tunnel
graphic for visual presentation of textMachinery and repairs
graphic for visual presentation of text$ 0.61
graphic for visual presentation of textAir drills and parts
graphic for visual presentation of text.99
graphic for visual presentation of textPicks, shovels, and steel
graphic for visual presentation of text1.90
graphic for visual presentation of textDitch men
graphic for visual presentation of text1.09
graphic for visual presentation of textExplosives
graphic for visual presentation of text6.90
graphic for visual presentation of textCandles
graphic for visual presentation of text.36
graphic for visual presentation of textOil and waste
graphic for visual presentation of text.09
graphic for visual presentation of textElectric power
graphic for visual presentation of text2.06
graphic for visual presentation of textBlacksmith supplies
graphic for visual presentation of text.09
graphic for visual presentation of textGeneral expense
graphic for visual presentation of text.16
graphic for visual presentation of textLiability insurance
graphic for visual presentation of text.17
graphic for visual presentation of textLumber ties and wedges
graphic for visual presentation of text.01
graphic for visual presentation of textHorses and feed
graphic for visual presentation of text.01
graphic for visual presentation of textCompressor men
graphic for visual presentation of text1.79
graphic for visual presentation of textDrillers and helpers
graphic for visual presentation of text4.21
graphic for visual presentation of textBlacksmiths and helpers
graphic for visual presentation of text3.43
graphic for visual presentation of textMuckers and drivers
graphic for visual presentation of text4.11
graphic for visual presentation of textForemen
graphic for visual presentation of text1.50
graphic for visual presentation of textBookkeeper
graphic for visual presentation of text.12
graphic for visual presentation of text
graphic for visual presentation of text—————————
graphic for visual presentation of text
graphic for visual presentation of text$ 29.60
graphic for visual presentation of text
graphic for visual presentation of textTYPICAL DISTRIBUTION OF EXPENSES
graphic for visual presentation of textShaft heading, February, 1910
graphic for visual presentation of text259 Feet
graphic for visual presentation of text
graphic for visual presentation of textCost per Foot of Tunnel
graphic for visual presentation of textMaintenance of buildings, tents, etc
graphic for visual presentation of text$ 0.096
graphic for visual presentation of textMachinery and repairs
graphic for visual presentation of text1.158
graphic for visual presentation of textAir drills and parts
graphic for visual presentation of text1.930
graphic for visual presentation of textShovels, picks, and steel
graphic for visual presentation of text1.930
graphic for visual presentation of textPipe and fittings
graphic for visual presentation of text.193
graphic for visual presentation of textDitch men
graphic for visual presentation of text1.480
graphic for visual presentation of textExplosives
graphic for visual presentation of text5.032
graphic for visual presentation of textLamps and candles
graphic for visual presentation of text.217
graphic for visual presentation of textOil and waste
graphic for visual presentation of text.252
graphic for visual presentation of textElectric power
graphic for visual presentation of text2.440
graphic for visual presentation of textBlacksmith supplies
graphic for visual presentation of text.150
graphic for visual presentation of textLiability insurance
graphic for visual presentation of text.213
graphic for visual presentation of textGeneral expense
graphic for visual presentation of text.342
graphic for visual presentation of textLumber, ties, and wedges
graphic for visual presentation of text.119
graphic for visual presentation of textHorses and feed
graphic for visual presentation of text.324
graphic for visual presentation of textMachine men and helpers
graphic for visual presentation of text4.050
graphic for visual presentation of textMuckers
graphic for visual presentation of text3.065
graphic for visual presentation of textBlacksmiths and helpers
graphic for visual presentation of text1.362
graphic for visual presentation of textEngineers
graphic for visual presentation of text1.300
graphic for visual presentation of textPipe and track men
graphic for visual presentation of text.675
graphic for visual presentation of textDrivers and dumpmen
graphic for visual presentation of text2.355
graphic for visual presentation of textForemen
graphic for visual presentation of text1.753
graphic for visual presentation of textMine telephone
graphic for visual presentation of text.008
graphic for visual presentation of textBookkeeper
graphic for visual presentation of text.193
graphic for visual presentation of text
graphic for visual presentation of text—————————
graphic for visual presentation of text
graphic for visual presentation of text$30.636
Above Info was Last Updated on 11.03.2020 (21:13:07)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
103
Info Title:
Roosevel Tunnel Air Pressure
The Roosevelt Tunnel uses 110 pounds as the Compressed Air Pressure at its Plant.
Above Info was Last Updated on 11.03.2020 (22:32:51)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
114
Info 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.
Above Info was Last Updated on 11.03.2020 (22:36:41)
Above Info was First Seen 11.03.2020

Type/Category of Info:
Article
Info Source From:
Modern Tunneling [1914], 1914. Volume: 1 [I], Issue No.: 1
Info found on page:
120
Info 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.
Above Info was Last Updated on 11.03.2020 (22:44:13)
Above Info was First Seen 11.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, January 11, 1919. Volume: 118 [CXVIII], Issue No.: 2
Info found on page:
62
Info 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.
graphic for visual presentation of text The work is estimated to be completed and connection made by the end of the year.
Above Info was Last Updated on 03.03.2020 (09:50:12)
Above Info was First Seen 02.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, January 11, 1919. Volume: 118 [CXVIII], Issue No.: 2
Info found on page:
62
Info 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.
graphic for visual presentation of text 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 03.03.2020 (09:51:41)
Above Info was First Seen 03.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, January 11, 1919. Volume: 118 [CXVIII], Issue No.: 2
Info found on page:
62
Info 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.
graphic for visual presentation of text 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.
graphic for visual presentation of text The saving in pumping costs alone is conservatively estimated at $3,000,000.
graphic for visual presentation of text 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.
graphic for visual presentation of text 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 03.03.2020 (09:57:04)
Above Info was First Seen 03.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, June 28, 1919. Volume: 118 [CXVIII], Issue No.: 26
Info found on page:
897
Info 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 07.03.2020 (22:00:02)
Above Info was First Seen 07.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, December 11, 1920. Volume: 121 [CXXI], Issue No.: 24
Info found on page:
850
Info 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.
graphic for visual presentation of text
Above Info was Last Updated on 02.03.2020 (20:23:06)
Above Info was First Seen 02.03.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, February 12, 1921. Volume: 122 [CXXII], Issue No.: 7
Info found on page:
235
Info 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.
Above Info was Last Updated on 21.02.2020 (14:35:27)
Above Info was First Seen 21.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, March 12, 1921. Volume: 122 [CXXII], Issue No.: 11
Info found on page:
370
Info Title:
Roosevelt Tunnel Connection to Elkton Info
The main Elkton shaft on the Raven hill connects with the Roosevelt drainage tunnel at 1675 ft.
Above Info was Last Updated on 21.02.2020 (18:11:50)
Above Info was First Seen 21.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, May 21, 1921. Volume: 122 [CXXII], Issue No.: 21
Info found on page:
723
Info 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.
graphic for visual presentation of text 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 23.02.2020 (14:41:20)
Above Info was First Seen 23.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, July 23, 1921. Volume: 123 [CXXIII], Issue No.: 4
Info found on page:
136
Info 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.
Above Info was Last Updated on 14.02.2020 (10:53:30)
Above Info was First Seen 14.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, August 13, 1921. Volume: 123 [CXXIII], Issue No.: 7
Info found on page:
237
Info 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.
graphic for visual presentation of text 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.
Above Info was Last Updated on 16.02.2020 (21:56:15)
Above Info was First Seen 16.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, November 12, 1921. Volume: 123 [CXXIII], Issue No.: 20
Info found on page:
684
Info 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.
graphic for visual presentation of text Sinking has also been resumed from the station at the 2000-ft. level of the Vindicator.
Above Info was Last Updated on 20.02.2020 (00:14:51)
Above Info was First Seen 19.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, January 7, 1922. Volume: 124 [CXXIV], Issue No.: 1
Info found on page:
28
Info 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.
graphic for visual presentation of text The crew at the Portland end progressed 15 ft. daily during the first part of December.
Above Info was Last Updated on 30.01.2020 (10:14:22)
Above Info was First Seen 27.01.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, February 25, 1922. Volume: 124 [CXXIV], Issue No.: 8
Info found on page:
273
Info 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.
Above Info was Last Updated on 12.02.2020 (11:00:30)
Above Info was First Seen 12.02.2020

Type/Category of Info:
General Mining News
Info Source From:
The Mining and Scientific Press, March 11, 1922. Volume: 124 [CXXIV], Issue No.: 10
Info found on page:
343
Info 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 12.02.2020 (13:48:14)
Above Info was First Seen 12.02.2020