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I-405 Corridor Program - Bellevue to Lynnwood Improvement Project Environmental Assessment

I-405, Bellevue to Lynnwood Improvement Project Environmental Assessment

On July 25, 2011, WSDOT published the Finding of No Significant Impact (FONSI) for the I-405 Bellevue to Lynnwood Improvement Project. You can download the FONSI below.

Finding of No Significant Impact (FONSI) (pdf 12.76 mb)

On May 10, 2011, WSDOT published an Environmental Assessment (EA) for the Bellevue to Lynnwood Improvement Project. The Environmental Assessment contains the results of our studies on how this project may affect the environment. The comment period for the environmental assessment was May 10 - June 10, 2011.

The State Environmental Protection Act (SEPA) Determination of Non-Significance (pdf 144 kb) for the I-405 Bellevue to Lynnwood Improvement Project was also published on May 10, 2011.

Environmental Assessment (pdf 13.38 mb)


Discipline Reports, I-405 Bellevue to Lynnwood Improvement Project

Air Quality (pdf 5.25 mb)

Cultural Resources (pdf 39.64 mb)

Cumulative Effects Analysis (pdf 5.27 mb)

Economics (pdf 4.72 mb)

Ecosystems (pdf 65.45 mb)

Hazardous Materials (pdf 9.63 mb)

Land Use, Patterns, Plans & Policies (pdf 8.66 mb)

Noise and Vibration (pdf 8.17 mb)

Section 4 (f) Resources (pdf 5.95 mb)

Environmental Justice (pdf 2.75 mb)

Soils, Geology & Groundwater (pdf 13.07 mb)

Traffic and Transportation (pdf 6.99 mb)

Utilities (pdf 4.86 mb)

Visual Quality (pdf 7.21 mb)

Water Resources (pdf 7.01 mb)