Structure 3F 658S · Salt Lake County, UT

I-15 (sr-15) Sbl over 800 South Street

Carries I-15 (sr-15) Sbl over 800 South Street, 550 West 800 So.st. Slc..

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT167 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

167 ft end to end, longest span 101 ft: about 2 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.

Built200125 years old
Length167.3 ft51 m
Daily traffic217,800counted 2014
Last inspectedJuly 2024every 24 months

Location

StateUtah
CountySalt Lake
Location550 West 800 So.st. Slc.
CarriesI-15 (sr-15) Sbl
Crosses800 South Street
Coordinates40.75231, -111.91128

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length167.3 ft (51 m)
Max Span101.0 ft (30.8 m)
Deck Width113.8 ft (34.7 m)
Deck Area1769.7 sq m
Main Spans3
Year Built2001

Traffic

Avg Daily Traffic217,800 (2014)
Truck Traffic7%
Lanes On Bridge7
Lanes Under Bridge5

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 Number3F 658S

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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