Structure 1F 615N · Salt Lake County, UT

I-15 (sr-15) Nbl over I-215 WB Ramp To I-15 SB

Carries I-15 (sr-15) Nbl over I-215 WB Ramp To I-15 SB, 6400 South Interchange.

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 FT218 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

218 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.

Built200026 years old
Length217.8 ft66.4 m
Daily traffic191,939counted 2022
Last inspectedOctober 2022every 24 months

Location

StateUtah
CountySalt Lake
Location6400 South Interchange
CarriesI-15 (sr-15) Nbl
CrossesI-215 WB Ramp To I-15 SB
Coordinates40.63586, -111.90475

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length217.8 ft (66.4 m)
Max Span208.0 ft (63.4 m)
Deck Width96.8 ft (29.5 m)
Deck Area1958.8 sq m
Main Spans1
Year Built2000

Traffic

Avg Daily Traffic191,939 (2022)
Truck Traffic15%
Lanes On Bridge6
Lanes Under Bridge7

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1F 615N

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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