Structure 4C 852 · Salt Lake County, UT

Rp.i80wbcd-15nbcd over Storm Drn.retention Pond

Carries Rp.i80wbcd-15nbcd over Storm Drn.retention Pond, I15 I80 Sr201 Int.@2400 S.

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 FT1,438 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,438 ft end to end, longest span 115 ft: about 4.0 football fields. 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
Length1437.7 ft438.2 m
Daily traffic10,467counted 2012
Last inspectedJune 2024every 26 months

Location

StateUtah
CountySalt Lake
LocationI15 I80 Sr201 Int.@2400 S
CarriesRp.i80wbcd-15nbcd
CrossesStorm Drn.retention Pond
Coordinates40.71875, -111.90101

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1437.7 ft (438.2 m)
Max Span114.8 ft (35 m)
Deck Width30.5 ft (9.3 m)
Deck Area4075.3 sq m
Main Spans13
Year Built1999

Traffic

Avg Daily Traffic10,467 (2012)
Truck Traffic25%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 26 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number4C 852

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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