Structure 3C 528 · Salt Lake County, UT

I-215 (sr-215) Sbl over Sr-266 4700 South Street

Carries I-215 (sr-215) Sbl over Sr-266 4700 South Street, 4700 South Interchange.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT187 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

187 ft end to end, longest span 137 ft: 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.

Built1976rebuilt 2004
Length187.3 ft57.1 m
Daily traffic103,180counted 2014
Last inspectedDecember 2024every 24 months

Location

StateUtah
CountySalt Lake
Location4700 South Interchange
CarriesI-215 (sr-215) Sbl
CrossesSr-266 4700 South Street
Coordinates40.66795, -111.95262

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length187.3 ft (57.1 m)
Max Span137.5 ft (41.9 m)
Deck Width81.4 ft (24.8 m)
Deck Area1416.1 sq m
Main Spans3
Year Built1976 (reconstructed 2004)

Traffic

Avg Daily Traffic103,180 (2014)
Truck Traffic18%
Lanes On Bridge4
Lanes Under Bridge7

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3C 528

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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