US Bridges

SR-266 4500 So.St. over Big Cottonwood Creek

Fair

Salt Lake County, Utah · 300 East 4500 So. Murray · Structure no. 0E1218

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
35,470
2014 count
Owner
State
State Highway Agency

About this bridge

SR-266 4500 So.St. over Big Cottonwood Creek is a concrete culvert carrying SR-266 4500 So.St. over Big Cottonwood Creek in Salt Lake County, Utah. It was built in 1971, so it is 54 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 5 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 35,470 vehicles a day, roughly 18% of them trucks, projected to reach 44,338 by 2034. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR-266 4500 So.St.
CrossesBig Cottonwood Creek
Location300 East 4500 So. Murray
RouteState Highway 266
CountySalt Lake County
StateUtah
Coordinates40.67422, -111.88089
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating57.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length24 ft (7.4 m)
Longest span22 ft (6.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,470 (2014)
Projected traffic44,338 by 2034
Trucks18%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 SR-266 4500 So.St. over Big Cottonwood Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR-266 4500 So.St. over Big 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 2024.

How much traffic does SR-266 4500 So.St. over Big Cottonwood Creek carry?

About 35,470 vehicles per day (2014 count), of which roughly 18% are trucks.

How long is SR-266 4500 So.St. over Big Cottonwood Creek?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.6 m).

Who owns SR-266 4500 So.St. over Big Cottonwood Creek?

It is owned by the State Highway Agency.