US Bridges

900 West Street over Mill Creek

Fair

Salt Lake County, Utah · 2900 S. 900 W. So. Slc · Structure no. 035117D

Built
1987
38 years old, rebuilt 2000
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
38 ft
1 main span
Daily traffic
32,130
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

900 West Street over Mill Creek is a concrete slab carrying 900 West Street over Mill Creek in Salt Lake County, Utah. It was built in 1987 and reconstructed in 2000, so it is 38 years old, younger than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 32,130 vehicles a day, roughly 1% of them trucks, projected to reach 39,038 by 2030. The structure is 38 ft (11.7 m) long and 80 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries900 West Street
CrossesMill Creek
Location2900 S. 900 W. So. Slc
RouteCity Street 2258
StateUtah
Coordinates40.70828, -111.91694
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.7 m)
Longest span37 ft (11.2 m)
Deck width80 ft (24.4 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,130 (2010)
Projected traffic39,038 by 2030
Trucks1%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 900 West Street over Mill Creek built?

It was built in 1987, making it 38 years old in 2025. It was reconstructed in 2000.

What condition is 900 West Street over Mill Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does 900 West Street over Mill Creek carry?

About 32,130 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is 900 West Street over Mill Creek?

The structure is 38 ft (11.7 m) long with a longest span of 37 ft (11.2 m) and a deck 80 ft wide.

Who owns 900 West Street over Mill Creek?

It is owned by the City or Municipal Highway Agency.