Environment

The Hydraulics and Water Quality Program helps to ensure environmental protection and compliance with respect to the region’s water resources during the planning, design, construction, and operations of WSDOT transportation facilities.

State Route Assignments (Word 88kb)

Stormwater Report Executive Summary (pdf 73kb)

Stormwater Report Template (Word 821kb)

TESC Template (Word 163kb)

Highway Runoff Manual

Related topics:

Environmental Procedure Manual (EPM)
OSC Hydraulics

Hydraulic Design Software

Hydraulics Manual

Construction Dewatering (PowerPoint 97mb)

Drain To Stream

Executive Summary (Word 106kb)
Stream Mark GSP (Word 20kb)

In-water BMP Strategies

Schematic Pump Stream Diversion Detail  (pdf 35 kb)

Schematic Gravity Stream Diversion Detail  (pdf 35 kb)