Water-Supply and Irrigation Papers of the United States Geological Survey Volume 95-97 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...gates a continuous record of flow at this point will be available. The results of these measurements are not yet ready for publication. ANDROSCOGGIN RIVER AT GORHAM, N. H. During the j'ear 1903 the Berlin Mills Company constructed a tight crib dam in Androscoggin River at Gorham. From November 27, 1903, until the end of the year the total volume of the river was diverted through a carefully constructed rectangular notch in this dam and the daily discharge estimated from observed depths of water in the notch. The following record has been furnished by H. S. Ferguson, engineer for the company. The drainage area at this point is 1,375 square miles. ANDROSCOGGIN RIVER AT SHELBUKNE, N. H This station was established May 30, 1903, by N. C. Grover. It is located at the steel highway bridge about one-half mile north of the railway station at Shelburne. The drainage area at this point is 1,500 square miles. A standard chain gage is attached to the guard timber on the downstream side of the bridge; length of chain, 20.i6 feet. It is referred to bench marks as follows: (1) Marked point on south edge of most westerly cylindrical pier; elevation, 17.82 feet. (2) Marked point on lower chord, near gage; elevation, 18.77 feet. (3) Highest point of bowlder near most easterly pier; elevation, 7.14 feet. All elevations refer to the datum of the gage. The initial point for soundings is on the left bank of the river at the end of the inclined end post of the downstream truss. The channel of the river is straight for 500 feet above and 1,000 feet below the station, is about 100 feet wide at ordinary stages, and is broken by two piers. The bed of the river is sandy and usually permanent, hut in case of serious obstructions to the channel by ice or logs, noticeable changes take pl...