Structure 3F 611S · Salt Lake County, UT

I-15 (sr-15) Sbl over Uta Light Rail Spur Line

Carries I-15 (sr-15) Sbl over Uta Light Rail Spur Line, 0.1 Mi.so.of 6400 So.st..

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT226 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

226 ft end to end: 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.

Built1999rebuilt 2019
Length226.0 ft68.9 m
Daily traffic246,810counted 2014
Last inspectedOctober 2024every 24 months

Location

StateUtah
CountySalt Lake
Location0.1 Mi.so.of 6400 So.st.
CarriesI-15 (sr-15) Sbl
CrossesUta Light Rail Spur Line
Coordinates40.63114, -111.90422

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length226.0 ft (68.9 m)
Max Span214.9 ft (65.5 m)
Deck Width107.3 ft (32.7 m)
Deck Area2253.0 sq m
Main Spans1
Year Built1999 (reconstructed 2019)

Traffic

Avg Daily Traffic246,810 (2014)
Truck Traffic27%
Lanes On Bridge7

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 611S

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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