Structure 3F 897 · Washington County, UT

Sr-7 SB over 4300 West

Carries Sr-7 SB over 4300 West, Sr-7 Over 4300 W.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT163 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

163 ft end to end: about 2 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.

Built20224 years old
Length163.1 ft49.7 m
Daily traffic4,300counted 2020
Last inspectedJanuary 2023every 24 months

Location

StateUtah
CountyWashington
LocationSr-7 Over 4300 W
CarriesSr-7 SB
Crosses4300 West
Coordinates37.10697, -113.39771

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length163.1 ft (49.7 m)
Max Span109.9 ft (33.5 m)
Deck Width46.9 ft (14.3 m)
Deck Area710.7 sq m
Main Spans1
Year Built2022

Traffic

Avg Daily Traffic4,300 (2020)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3F 897

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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