MLC Riprap Scour Rehab - Walla Walla

The Corps of Engineers, Walla Walla District, proposes to repair a section of riprap that has eroded in the Mill Creek channel just downstream of the Mill Creek Diversion Dam (across from Rooks Park. A scour hole has developed in this area. The Contractor will be required to fill the scour hole with approximately 200 TON of placed, keyed-in, rip rap and other well graded stone that is Contractor provided. Although flows are expected to be low during the Construction period, the Contractor will need to divert water away from the construction area and may need to pump some water out of the hole to complete the work.
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Name Size
01 - Table of Contents 38.2 KB
02 - Request for Quotation 1.2 MB
03 - Division 00 - Procurement and Contracting Requirement 40.8 KB
04 - Division 01 - General Requirements 1.4 MB
05 - Division 02 - Existing Conditions 43.2 KB
06 - Division 31 - Earthwork 40.0 KB
07 - Division 35 - Waterway and Marine Construction 50.1 KB