US Bridges

SR-12 over Calf Creek

Fair

Garfield County, Utah · 15 Mile East of Escalante · Structure no. 0V1418

Built
1964
61 years old
Condition
Fair
inspected April 2023
Type
Culvert
Steel
Length
26 ft
1 main span
Daily traffic
647
2022 count
Owner
State
State Highway Agency

About this bridge

SR-12 over Calf Creek is a steel culvert carrying SR-12 over Calf Creek in Garfield County, Utah. It was built in 1964, so it is 61 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 647 vehicles a day, roughly 21% of them trucks, projected to reach 776 by 2042. The structure is 26 ft (8 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesSR-12
CrossesCalf Creek
Location15 Mile East of Escalante
RouteState Highway 12
CountyGarfield County
StateUtah
Coordinates37.78428, -111.41825
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating64.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length26 ft (8 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic647 (2022)
Projected traffic776 by 2042
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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-12 over Calf Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR-12 over Calf 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 April 2023.

How much traffic does SR-12 over Calf Creek carry?

About 647 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is SR-12 over Calf Creek?

The structure is 26 ft (8 m) long with a longest span of 20 ft (6.2 m).

Who owns SR-12 over Calf Creek?

It is owned by the State Highway Agency.