Structure 3C 993 · Utah County, UT

I-15SB (sr-15) over Sr-114 Geneva Road

Carries I-15SB (sr-15) over Sr-114 Geneva Road, Southwest Edge Of Lindon.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT295 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

295 ft end to end, longest span 149 ft: about 4 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
Length294.6 ft89.8 m
Daily traffic203,678counted 2023
Last inspectedFebruary 2023every 24 months

Location

StateUtah
CountyUtah
LocationSouthwest Edge Of Lindon
CarriesI-15SB (sr-15)
CrossesSr-114 Geneva Road
Coordinates40.33040, -111.73866

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length294.6 ft (89.8 m)
Max Span149.3 ft (45.5 m)
Deck Width112.2 ft (34.2 m)
Deck Area3071.2 sq m
Main Spans2
Year Built2011

Traffic

Avg Daily Traffic203,678 (2023)
Truck Traffic19%
Lanes On Bridge7
Lanes Under Bridge4

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 Number3C 993

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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