33 Road Aquatic Organism Passage Part 2, Skamania Co, WA
The project consists of, but is not limited to, grading shaping and compacting 4.8 miles of roadway, and providing all materials, labor, and equipment to remove two existing 24- inch culvert, and install a pipe arch 129 span by 8 11 rise (Nominal: 157 x 101) x 60-foot-long Gauge 10 Aluminized Corrugated Metal Culvert (5 x 1 in. Corrugation), and to remove an existing 48-inch culvert, and install a bottomless metal arch 14 span by 4 8 rise x 60-foot-long Gauge 10 Galvanized Steel Corrugated Metal (5 x 2 in. Corrugation).