Structure 3C1032 · Davis County, UT

I-15 over Sr-232 Hill Field RD

Carries I-15 over Sr-232 Hill Field RD, Hill Field RD Interchange.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT181 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

181 ft end to end: 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.

Built201610 years old
Length181.4 ft55.3 m
Daily traffic143,101counted 2023
Last inspectedJune 2023every 24 months

Location

StateUtah
CountyDavis
LocationHill Field RD Interchange
CarriesI-15
CrossesSr-232 Hill Field RD
Coordinates41.07389, -111.97667

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length181.4 ft (55.3 m)
Deck Width89.9 ft (27.4 m)
Deck Area1515.2 sq m
Main Spans1
Year Built2016

Traffic

Avg Daily Traffic143,101 (2023)
Truck Traffic32%
Lanes On Bridge3
Lanes Under Bridge9

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3C1032

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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