US Bridges

SR-14 over Coal Creek

Fair

Iron County, Utah · 7 Miles East Cedar City · Structure no. 0F 553

Built
1991
34 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
99 ft
1 main span
Daily traffic
1,515
2014 count
Owner
State
State Highway Agency

About this bridge

SR-14 over Coal Creek is a prestressed concrete stringer/multi-beam or girder carrying SR-14 over Coal Creek in Iron County, Utah. It was built in 1991, so it is 34 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 1,515 vehicles a day, roughly 21% of them trucks, projected to reach 1,894 by 2034. The structure is 99 ft (30.1 m) long and 46 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesSR-14
CrossesCoal Creek
Location7 Miles East Cedar City
RouteState Highway 14
CountyIron County
StateUtah
Coordinates37.64111, -112.95472
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length99 ft (30.1 m)
Longest span96 ft (29.3 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,515 (2014)
Projected traffic1,894 by 2034
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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-14 over Coal Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is SR-14 over Coal 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 March 2023.

How much traffic does SR-14 over Coal Creek carry?

About 1,515 vehicles per day (2014 count), of which roughly 21% are trucks.

How long is SR-14 over Coal Creek?

The structure is 99 ft (30.1 m) long with a longest span of 96 ft (29.3 m) and a deck 46 ft wide.

Who owns SR-14 over Coal Creek?

It is owned by the State Highway Agency.