SR 6 - South Branch Fronia Creek and Fronia Creek - Fish Passage - Completed July 2020

Project news

In summer 2019, contractor crews working for the Washington State Department of Transportation, began work to replace to aging and failing culverts that cross under State Route 6 with a new bridge, just east of Pe Ell, in Lewis County.

Needs & benefits

Replacing the aging and failing culverts with a wider concrete bridge span improves fish passage and improves safety to users of the highway. Moreover, during heavy seasonal rains, the existing culverts became a choke point for storm water and forced excess water over the roadway, causing a safety issue for travelers. 

By combining the south branch of Fronia Creek to the main branch of Fronia Creek and replacing the culverts with one full span bridge, it improved drainage and resulted in a creek crossing that complies with the federal injunction and WDFW water crossing guidelines. Additionally, it improved fish passage and reconnected streams to keep our waterways healthy. 

  • Protects Environment: Improving fish passage by opening up the stream creates an additional fish habitat.
  • Improves Safety: Replacing the culverts with a concrete bridge span lessens erosion around roads by providing better drainage and kept storm water from covering the roadway.
  • Reduce Costly Repairs: Replacing the culverts with a concrete bridge span will reduce the cost of emergency maintenance repairs.


  • Spring 2019 - Project went to ad
  • Spring 2019 - Project was awarded to Stellar J. Corporation on April 3, 2019
  • Summer 2019 - Construction began
  • Summer 2020 - Construction was completed


The estimated cost of this project is $1.9 million


Financial Data for PIN 400621M
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $2,710
CWA $0
Total $2,710


Colin Newell
WSDOT Project Engineer

Celeste Dimichina
WSDOT Communications

State Route 6 South Branch Fronia Creek and Fronia Creek Fish Passage project location