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Peterson Road over Skamokawa Creek

Wahkiakum County, Washington · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Peterson Road over Skamokawa Creek in Wahkiakum County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2003, making it 22 years old at the 2025 inventory.
It carries about 51 vehicles a day (traffic count year 2014).
Its listed owner is the county highway agency.
It is one of 20 of the 37 inventoried bridges in Wahkiakum County rated good (54.1%); 1 (2.7%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 89 ft
Location	0.2 E Mid. Val. Rd.
NBI structure number	087187000000000
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.

Bridge	Built	Vehicles/day	Condition
SR 4 over Elochoman River	1955	2,084	Fair
SR 4 over Tide Gate Culvert	2015	2,084	Good
SR 409 over Columbia R Puget Island	1938	1,973	Fair
SR 4 over Skamokawa Creek	1939	1,573	Fair
SR 4 over Deep River	1990	1,509	Good
SR 4 over Rangila Slough	1990	1,509	Good