Structure 8094A0000000 · Clark County, WA

SR 503 over East Fork Lewis River

Carries SR 503 over East Fork Lewis River, 2.0 N Jct SR 502.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT260 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

260 ft end to end, longest span 99 ft: about 4 semi-trucks nose to tail. 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 box-beam bridge.

Built196759 years old
Length259.8 ft79.2 m
Daily traffic18,654counted 2023
Last inspectedJuly 2023every 24 months

Location

StateWashington
CountyClark
Location2.0 N Jct SR 502
CarriesSR 503
CrossesEast Fork Lewis River
Coordinates45.80954, -122.54719

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length259.8 ft (79.2 m)
Max Span99.1 ft (30.2 m)
Deck Width34.8 ft (10.6 m)
Deck Area839.5 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic18,654 (2023)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0008094A0000000

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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