US Bridges

SR-120 over State Canal

Fair

Sevier County, Utah · No.Main St.In Richfield · Structure no. 0E2079

Built
1978
47 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
10,675
2022 count
Owner
State
State Highway Agency

About this bridge

SR-120 over State Canal is a concrete culvert carrying SR-120 over State Canal in Sevier County, Utah. It was built in 1978, so it is 47 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 10,675 vehicles a day, roughly 22% of them trucks, projected to reach 12,810 by 2042. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesSR-120
CrossesState Canal
LocationNo.Main St.In Richfield
RouteState Highway 120
CountySevier County
StateUtah
Coordinates38.77889, -112.085
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 inspectionMay 2023
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 rating63.9 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length26 ft (7.8 m)
Longest span24 ft (7.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,675 (2022)
Projected traffic12,810 by 2042
Trucks22%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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-120 over State Canal built?

It was built in 1978, making it 47 years old in 2025.

What condition is SR-120 over State Canal 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 May 2023.

How much traffic does SR-120 over State Canal carry?

About 10,675 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is SR-120 over State Canal?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.2 m).

Who owns SR-120 over State Canal?

It is owned by the State Highway Agency.