Structure F 381 · Weber County, UT

Sr-39 over Ogden River

Carries Sr-39 over Ogden River, At Mouth Of Ogden Canyon.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 8/9Substructure 5/9 · sets the rating

50 ft end to end. Lengths and the car 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.

Built1923rebuilt 1977
Length49.5 ft15.1 m
Daily traffic8,878counted 2022
Last inspectedJuly 2023every 24 months

Location

StateUtah
CountyWeber
LocationAt Mouth Of Ogden Canyon
CarriesSr-39
CrossesOgden River
Coordinates41.23609, -111.92438

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length49.5 ft (15.1 m)
Max Span49.2 ft (15 m)
Deck Width38.1 ft (11.6 m)
Deck Area175.2 sq m
Main Spans1
Year Built1923 (reconstructed 1977)

Traffic

Avg Daily Traffic8,878 (2022)
Truck Traffic9%
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 Critical4 — Foundations need monitoring
Structure Number0F 381

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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