Maxon News
The Dalles Dam Spillway Bay 8 and 9
Maxcretes Speed Delivery of Concrete to Corps Job on Columbia River
Project Overview
The Dalles Dam is a hydroelectric dam spanning the Columbia River, two-miles (3 km) east of the city The Dalles, Oregon (it joins Wasco County, Oregon with Klickitat County, Washington). The Dam has been the site of a U.S. Corps of Engineers project to improve survival rates of out-migrating young salmon that pass over the Dam spillway.
The Dalles Dam spillway is the primary downstream passage route for migrating juvenile salmon travelling down the Columbia River. Researchers found in previous studies that the young salmon had low survival rates after passing through the spillway. In 2004, the Corps constructed a short spillway wall (Spillway 5/6) in an attempt to increase survival rates. Unfortunately, even with the short wall, survival rates were still low due primarily to predator fish and birds in the low flow area directly past the spillway that fed on the young disoriented salmon.
Related posts
Tags
Recent Instagram Posts
Instagram has returned invalid data.Newsletter
Recent posts
-
WE ARE CLOSED DEC 23-JAN 1 !December 22, 2022
-
WE HAVE EQUIPMENT READY TO BE RECONDITIONED FOR YOU!December 6, 2022
-
SCM JV Completes New Nice Middleton Bridge Ahead of Schedule!October 27, 2022
-
Fall in Wisconsin with Vinton AgitorOctober 21, 2022
-
Agitors Pave I-94 Maple Grove to Clearwater MNSeptember 10, 2022