Structure H404 · Duchesne County, UT

IRR BIA RTE 7 over Uintah River

Carries IRR BIA RTE 7 over Uintah River, 10.8 Km North Of Neola.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT115 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 7/9

115 ft end to end, longest span 76 ft. 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 rigid-frame bridge.

Built196363 years old
Length114.8 ft35 m
Daily traffic100counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateUtah
CountyDuchesne
Location10.8 Km North Of Neola
CarriesIRR BIA RTE 7
CrossesUintah River
Coordinates40.52922, -110.05172

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length114.8 ft (35 m)
Max Span76.1 ft (23.2 m)
Deck Width28.2 ft (8.6 m)
Deck Area301 sq m
Main Spans3
Year Built1963

Traffic

Avg Daily Traffic100 (2024)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00000000000H404

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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