US Bridges

4800 North St. over Coal Creek

Fair

Iron County, Utah · 2100 W. 4800 N. · Structure no. 021018D

Built
2010
15 years old
Condition
Fair
inspected March 2024
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
2,000
2012 count
Owner
County
County Highway Agency

About this bridge

4800 North St. over Coal Creek is a concrete frame carrying 4800 North St. over Coal Creek in Iron County, Utah. It was built in 2010, so it is 15 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 2,000 vehicles a day, roughly 5% of them trucks, projected to reach 2,500 by 2032. The structure is 26 ft (7.8 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries4800 North St.
CrossesCoal Creek
Location2100 W. 4800 N.
RouteCounty Highway 1784
StateUtah
Coordinates37.76485, -113.08794
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 protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating57.1 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width40 ft (12.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2012)
Projected traffic2,500 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 4800 North St. over Coal Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is 4800 North St. 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 4800 North St. over Coal Creek carry?

About 2,000 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is 4800 North St. over Coal Creek?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 40 ft wide.

Who owns 4800 North St. over Coal Creek?

It is owned by the County Highway Agency.