Structure D 809 · Salt Lake County, UT

Sr-171 3300 So.st over Jordan River

Carries Sr-171 3300 So.st over Jordan River, 1000 W 3300 So. Slc.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT154 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

154 ft end to end, longest span 60 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 slab bridge.

Built197551 years old
Length153.5 ft46.8 m
Daily traffic29,045counted 2014
Last inspectedDecember 2022every 24 months

Location

StateUtah
CountySalt Lake
Location1000 W 3300 So. Slc
CarriesSr-171 3300 So.st
CrossesJordan River
Coordinates40.69930, -111.92488

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length153.5 ft (46.8 m)
Max Span60.0 ft (18.3 m)
Deck Width100.7 ft (30.7 m)
Deck Area1436.8 sq m
Main Spans3
Year Built1975

Traffic

Avg Daily Traffic29,045 (2014)
Truck Traffic25%
Lanes On Bridge6

Inspection & Ownership

Last InspectionDecember 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0D 809

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.

Nearby Bridges