State Route 520 Bridge

Location Seattle and King County Washington
Organization Public Health - Seattle & King County, Puget Sound Clean Air Agency

The Seattle and King County Public Health Department, in collaboration with the Puget Sound Clean Air Agency, conducted an HIA to evaluate the health impacts of the State Route 520 bridge replacement and HOV project.  The HIA focused on several pathways and health issues including air quality, carbon emissions, traffic injury and opportunities for physical activity. The HIA made several recommendations to reduce the negative effects on air quality including that new or retrofitted diesel powered construction vehicles and equipment be used during the construction phase. The HIA also recommended that connected walking and bicycling facilities be installed throughout the corridor to promote physical activity

HIA in the United States
Data Visualization

Search Our Interactive Map

View the Map
Quick View
Data Visualization

Search Our Interactive Map

Decision makers at all levels are using the fast-growing field of HIA to take health into account when making decisions in a broad range of sectors, including agriculture, education, energy and budgeting, in all types of locations--rural, suburban, and urban, local, regional or statewide. Learn more about the information sources that were used to develop this page.

View the Map
At A Glance
  • Status Complete
  • Completion Date 2008
  • Decision-Level County
  • Sector Transportation
  • Organization Type Government Agency