Structure 88236000000000 · Clark County, WA

NW 39th Street over Bnrr Main Line & Ry

Carries NW 39th Street over Bnrr Main Line & Ry, NW 39th Street.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT742 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

742 ft end to end, longest span 178 ft: about 2.1 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 multi-beam bridge.

Built201016 years old
Length742.1 ft226.2 m
Daily traffic4,679counted 2021
Last inspectedDecember 2024every 24 months

Location

StateWashington
CountyClark
LocationNW 39th Street
CarriesNW 39th Street
CrossesBnrr Main Line & Ry
Coordinates45.65014, -122.68827

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length742.1 ft (226.2 m)
Max Span178.1 ft (54.3 m)
Deck Width40.0 ft (12.2 m)
Deck Area2759.6 sq m
Main Spans3
Year Built2010

Traffic

Avg Daily Traffic4,679 (2021)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number088236000000000

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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