Structure 1C 868N · Salt Lake County, UT

I-15 (sr-15) Nbl over 900 South & Uprr

Carries I-15 (sr-15) Nbl over 900 South & Uprr, 650 West 900 So.st. Slc..

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT568 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

568 ft end to end, longest span 156 ft: about 1.6 football fields. 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.

Built199927 years old
Length567.9 ft173.1 m
Daily traffic217,800counted 2014
Last inspectedJuly 2024every 24 months

Location

StateUtah
CountySalt Lake
Location650 West 900 So.st. Slc.
CarriesI-15 (sr-15) Nbl
Crosses900 South & Uprr
Coordinates40.74881, -111.90842

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length567.9 ft (173.1 m)
Max Span156.2 ft (47.6 m)
Deck Width112.9 ft (34.4 m)
Deck Area5954.6 sq m
Main Spans4
Year Built1999

Traffic

Avg Daily Traffic217,800 (2014)
Truck Traffic7%
Lanes On Bridge7
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1C 868N

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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