US Bridges

City Street over Coal Creek

Fair

Iron County, Utah · West Side of Cedar City · Structure no. 021001F

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
91 ft
1 main span
Daily traffic
2,300
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

City Street over Coal Creek is a prestressed concrete stringer/multi-beam or girder carrying City Street over Coal Creek in Iron County, Utah. It was built in 1970, so it is 55 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 2,300 vehicles a day, roughly 30% of them trucks, projected to reach 2,773 by 2030. The structure is 91 ft (27.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCity Street
CrossesCoal Creek
LocationWest Side of Cedar City
RouteCity Street 1775
StateUtah
Coordinates37.69464, -113.07372
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length91 ft (27.8 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2010)
Projected traffic2,773 by 2030
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 City Street over Coal Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is City Street 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 2024.

How much traffic does City Street over Coal Creek carry?

About 2,300 vehicles per day (2010 count), of which roughly 30% are trucks.

How long is City Street over Coal Creek?

The structure is 91 ft (27.8 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns City Street over Coal Creek?

It is owned by the City or Municipal Highway Agency.