Structure C 989 · Utah County, UT

Sam White Road over I-15 (sr-15)

Carries Sam White Road over I-15 (sr-15), So.of 5th East Int. In Af.

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 FT359 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

359 ft end to end, longest span 177 ft: about 5 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.

Built201115 years old
Length358.6 ft109.3 m
Daily traffic5,000counted 2012
Last inspectedFebruary 2023every 24 months

Location

StateUtah
CountyUtah
LocationSo.of 5th East Int. In Af
CarriesSam White Road
CrossesI-15 (sr-15)
Coordinates40.35556, -111.77750

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length358.6 ft (109.3 m)
Max Span176.8 ft (53.9 m)
Deck Width76.8 ft (23.4 m)
Deck Area2557.6 sq m
Main Spans2
Year Built2011

Traffic

Avg Daily Traffic5,000 (2012)
Lanes On Bridge2
Lanes Under Bridge14

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number0C 989

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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