520 Bridge Project520 Bridge Project

Madison Park Omitted from 520 Adverse Impact Study

Monday, Mar 21, 2011

Letter to the committee submitted by Kathleen O'Connor.

February Sustainable 520 Report - Get the latest facts here.

Thursday, Feb 20, 2020

We can do better than WSDOT’s Preferred Alternative.

Noise Related to Sample Drilling

Monday, Mar 7, 2011

Night drilling for the 520 bridge project will continue through fall 2011.

During night work, activities will include placing and removing equipment. In addition to the existing sound of freeway traffic, you may hear construction equipment, back-up alarms and vehicles entering and exiting the work zone.

While drilling, the machine will sound similar to ambient noise from the freeway. Residents may also hear a hammering sound during soil sampling.