Structure C 647 · Weber County, UT

Sr-26 over Union Pacific Railroad

Carries Sr-26 over Union Pacific Railroad, 0.2 Mi W Of I-15 Int.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT187 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 6/9 · sets the rating

187 ft end to end, longest span 74 ft: about 3 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 multi-beam bridge.

Built1973rebuilt 2014
Length187.0 ft57 m
Daily traffic22,831counted 2022
Last inspectedAugust 2023every 24 months

Location

StateUtah
CountyWeber
Location0.2 Mi W Of I-15 Int
CarriesSr-26
CrossesUnion Pacific Railroad
Coordinates41.16889, -112.02278

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length187.0 ft (57 m)
Max Span74.1 ft (22.6 m)
Deck Width92.8 ft (28.3 m)
Deck Area1613.1 sq m
Main Spans3
Year Built1973 (reconstructed 2014)

Traffic

Avg Daily Traffic22,831 (2022)
Truck Traffic24%
Lanes On Bridge5

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number0C 647

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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