US Bridges

US-89 (SR-89) over Little Cottonwood Creek

Fair

Salt Lake County, Utah · 5000 So. State St. Murray · Structure no. 0E2225

Built
1984
41 years old
Condition
Fair
inspected October 2022
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
31,257
2021 count
Owner
State
State Highway Agency

About this bridge

US-89 (SR-89) over Little Cottonwood Creek is a concrete culvert carrying US-89 (SR-89) over Little Cottonwood Creek in Salt Lake County, Utah. It was built in 1984, so it is 41 years old, older 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 31,257 vehicles a day, roughly 10% of them trucks, projected to reach 37,508 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesUS-89 (SR-89)
CrossesLittle Cottonwood Creek
Location5000 So. State St. Murray
RouteU.S. Route 89
StateUtah
Coordinates40.66074, -111.88828
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,257 (2021)
Projected traffic37,508 by 2041
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US-89 (SR-89) over Little Cottonwood Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is US-89 (SR-89) over Little Cottonwood 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 October 2022.

How much traffic does US-89 (SR-89) over Little Cottonwood Creek carry?

About 31,257 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is US-89 (SR-89) over Little Cottonwood Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).

Who owns US-89 (SR-89) over Little Cottonwood Creek?

It is owned by the State Highway Agency.