Structure 3F 613S · Salt Lake County, UT

I-15 (sr-15) Sbl over 6400 South Street

Carries I-15 (sr-15) Sbl over 6400 South Street, 500 West 6400 So.-murray.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT197 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

197 ft end to end, longest span 117 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.

Built199927 years old
Length196.5 ft59.9 m
Daily traffic246,810counted 2014
Last inspectedOctober 2024every 24 months

Location

StateUtah
CountySalt Lake
Location500 West 6400 So.-murray
CarriesI-15 (sr-15) Sbl
Crosses6400 South Street
Coordinates40.63256, -111.90508

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length196.5 ft (59.9 m)
Max Span117.5 ft (35.8 m)
Deck Width85.0 ft (25.9 m)
Deck Area1551.4 sq m
Main Spans3
Year Built1999

Traffic

Avg Daily Traffic246,810 (2014)
Truck Traffic27%
Lanes On Bridge5
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3F 613S

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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