Structure 1C 875N · Salt Lake County, UT

I-15 (sr-15) Nbl over Sr-267 400 So. St.

Carries I-15 (sr-15) Nbl over Sr-267 400 So. St., 700 West 400 South St..

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT495 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

495 ft end to end, longest span 227 ft: about 7 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.

Built199927 years old
Length495.1 ft150.9 m
Daily traffic172,645counted 2014
Last inspectedJuly 2024every 24 months

Location

StateUtah
CountySalt Lake
Location700 West 400 South St.
CarriesI-15 (sr-15) Nbl
CrossesSr-267 400 So. St.
Coordinates40.75977, -111.91394

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length495.1 ft (150.9 m)
Max Span226.7 ft (69.1 m)
Deck Width73.5 ft (22.4 m)
Deck Area3380.2 sq m
Main Spans3
Year Built1999

Traffic

Avg Daily Traffic172,645 (2014)
Truck Traffic7%
Lanes On Bridge4
Lanes Under Bridge7

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 875N

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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