|
<br />camping. During construction some embankment material was obtained
<br />from a 75-acre tract of land immediately downstream of the dam. This
<br />excavated area, averaging 12 feet deep, filled with water and formed Lake
<br />Hasty, now used for year-round recreation. North of the reservoir, a half-
<br />mile segment of the historic Santa Fe Trail has been enclosed by a fence
<br />and marked with an appropriate sign.
<br />
<br />..
<br />
<br />John Martin Dam consists of a concrete gravity structure 1,644 feet long and
<br />120 feet high, and an earthflll structure 2,600 feet long. The concrete gravity
<br />structure contains a spillway controlled by sixteen 30 foot by 64 foot tainter
<br />gates and their operating machinery. There are earthen wing dams on
<br />either side of the main dam. The north wing dam is 3,880 feet long,
<br />connectng to the earthfill structure of the main dam at the north abutment.
<br />The south wing dam is 5,807 feet long and connects to the south end of the
<br />concrete structure of the main dam. A bituminous-surfaced roadway, 21
<br />feet wide, extends along the crest of the north wing dam, main dam, and
<br />south wing dam. The overall length of the structure is 2.6 miles. Detailed
<br />project data. based on the 1986 resurvey, is shown below.
<br />
<br />,.
<br />
<br />MM
<br />Total length. feet. .............. ................13,945
<br />Maximum height above streambed, feet ............ ,....................118
<br />Width of roadway on dam, feet..........................................................21
<br />
<br />SPILLWAY
<br />Total length, including piers, feet ........... .....................................1,174
<br />Crest gates, 30' x 64'. each ...... .................................... .............. ...16
<br />Discharge capacity, cfs ......................... ..............................639,200
<br />
<br />OUTLET WORKS
<br />Sluicing conduits, 6' x 7.5', each ................ .......................................4
<br />Regulating conduits, 4' x 4', each .......................................................2
<br />Total outlet capacity at elevation 3,851, cfs ...............................14,700
<br />
<br />I
<br />(
<br />
<br />RESERVOIR
<br />Capacity at elevation 3,870, acre-feet .....................................608,245
<br />Flood control storage, acre-feet ..............,......................... .......259,562
<br />Conservation and recreation storage, acre-feet .....................348,683
<br />Water surface at spillway crest, acres .........................................8,975.
<br />Water surface at top of conservation pool, acres ......................11 ,645
<br />Water surface at top of flood control pool, acres .......................17, 151
<br />Drainage areas, square miles ....................................................18,915
<br />
<br />AlIItAum
<br />
<br />9
<br />
|