RFB-33-2012 - Boulder Canyon 24-Inch Pipeline Creek Crossing Improvements Projec

Summary of Specifications:
The work generally consists of replacement of 24-inch transmission at three creek crossings along Boulder Creek. The following is a general summary of the work at each creek crossing: 1. Stevens Crossing No. 1 a. Demolition and removal of existing 16-inch steel casing pipe and 1.5-inch service line as shown on the drawings. b. New buried 24-inch ductile iron water transmission main across Boulder Creek, including connections to existing 24-inch steel transmission main on each side of creek. c. New buried 1.5-inch HDPE water service line installed in 4-inch PVC casing pipe across Boulder Creek, including connections to existing 1.5-inch water service line on each side of creek. d. Concrete encasement of new creek crossings. e. Thrust restraints. f. New air release valve vault on east side of crossing. g. Creek restoration / revegetation. 2. Stevens Crossing No. 2 a. Demolition and removal of existing 24-inch steel water transmission main as shown on the drawings. b. New buried 24-inch ductile iron water transmission main across Boulder Creek, including connections to existing 24-inch steel transmission main on each side of creek. c. Concrete encasement of new creek crossing. d. Thrust restraints. e. New manway / air release valve vault on east side of crossing. f. Creek restoration / revegetation. 3. Travis Crossing a. Demolition and removal of existing 24-inch steel water transmission main aerial crossing and concrete piers as shown on the drawings. b. New buried 24-inch ductile iron water transmission main across Boulder Creek, including connections to existing 24-inch steel transmission main on each side of creek. c. Concrete encasement of new creek crossing. d. Thrust restraints. e. New air release valve vault on east side of crossing. f. Creek restoration / revegetation.