US Bridges

City Street over Coal Creek

Fair

Iron County, Utah · 1 Mile NW of Cedar City · Structure no. 021002F

Built
1969
56 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
2,520
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 1969, so it is 56 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 2,520 vehicles a day, roughly 80% of them trucks, projected to reach 3,062 by 2030. The structure is 106 ft (32.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCity Street
CrossesCoal Creek
Location1 Mile NW of Cedar City
RouteCity Street 1770
StateUtah
Coordinates37.69946, -113.07868
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating39.2 US tons
Inventory rating0 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length106 ft (32.4 m)
Longest span103 ft (31.4 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,520 (2010)
Projected traffic3,062 by 2030
Trucks80%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 1969, making it 56 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 2,520 vehicles per day (2010 count), of which roughly 80% are trucks.

How long is City Street over Coal Creek?

The structure is 106 ft (32.4 m) long with a longest span of 103 ft (31.4 m) and a deck 32 ft wide.

Who owns City Street over Coal Creek?

It is owned by the City or Municipal Highway Agency.