Structure 2473A0000000 · Clark County, WA

I-5 over E Fork Lewis River

Carries I-5 over E Fork Lewis River, 4.1 N Jct SR 501.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT852 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

852 ft end to end: about 2.4 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a through truss.

Built193987 years old
Length852.0 ft259.7 m
Daily traffic41,939counted 2023
Last inspectedAugust 2023every 24 months

Location

StateWashington
CountyClark
Location4.1 N Jct SR 501
CarriesI-5
CrossesE Fork Lewis River
Coordinates45.87172, -122.71014

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length852.0 ft (259.7 m)
Max Span248.0 ft (75.6 m)
Deck Width48.9 ft (14.9 m)
Deck Area3869.5 sq m
Main Spans1
Year Built1939

Traffic

Avg Daily Traffic41,939 (2023)
Truck Traffic15%
Lanes On Bridge3
Lanes Under Bridge3

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number0002473A0000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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