Accession Number : ADA198659


Title :   Environmental Assessment: Proposed Lakeview Marina Site Boat Ramp and Access, Saylorville Lake, Polk County, Iowa


Corporate Author : ARMY ENGINEER DISTRICT ROCK ISLAND IL


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA198659


Report Date : AUG 1988


Pagination or Media Count : 50


Abstract : The proposed development will consist of: (1) a 500-foot-long paved 2-lane ramp approximately 50 feet wide with two 100-foot turning radii; (20a 2, 700-foot-long access road into the project site; (3) upper and lower paved parking lots totaling approximately 87,500 square feet; (4) a 300-foot access road to the lower parking lot; (5) a boatway channel located adjacent to the ramp to facilitate boater access for loading and unloading will be approximately 120 feet long, 14 feet wide and 6 feet deep; and (6) landscape plantings and ground covers. The design would include approximately 46,000 cubic yards of cut and fill, 7,500 tons of crushed stone, 15,000 square yards of blacktop, 2,000 square yards of concrete, and 6,500 tons of riprap. The completed facility would provide access to Saylorville Lake during high water conditions (above elevation 860 NGVD) and at normal pool levels (elevation 836 NGVD). The benefit-to-cost ratio for the project is 2.2:1 with net annual benefits of $87,800, based on a 50-year project life.


Descriptors :   *RAMPS , WATER , SITES , CONCRETE , UNLOADING , BOATS , BENEFITS , IOWA , HIGH RATE , ENVIRONMENTAL IMPACT


Subject Categories : CIVIL ENGINEERING


Distribution Statement : APPROVED FOR PUBLIC RELEASE