I-5 over Skookumchuck River

Fair Condition75 years old24,769 vehicles/day

Location

StateWashington
CountyLewis
Location0.7 N Jct SR 507
CarriesI-5
CrossesSkookumchuck River
Coordinates46.72076, -122.97666

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length252.0 ft (76.8 m)
Max Span160.1 ft (48.8 m)
Deck Width34.8 ft (10.6 m)
Deck Area814.1 sq m
Main Spans1
Year Built1951

Traffic

Avg Daily Traffic24,769 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last Inspection624
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0011757B0000000

Nearby Bridges

I-5 over Skookumchuck River 0.0 mi Fair I-5 Sbcd over Skookumchuck River 0.0 mi Good I-5 Nbcd over Skookumchuck River 0.0 mi Good Harrison AVE over Skookumchuck River 0.4 mi Good I-5 over Harrison AVE 0.4 mi Fair Marsh Avenue over China Creek 0.5 mi Good Plum ST over China Creek 0.5 mi Fair Yew ST over China Creek 0.5 mi Fair Pear ST over China Creek 0.6 mi Fair Cedar ST over China Creek 0.6 mi Fair