US Bridges

SR-24 over Iron Wash

Good

Emery County, Utah · 13 MI South of JCT I-70 · Structure no. 0F 137

Built
1967
58 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
294 ft
4 main spans
Daily traffic
781
2022 count
Owner
State
State Highway Agency

About this bridge

SR-24 over Iron Wash is a prestressed concrete stringer/multi-beam or girder carrying SR-24 over Iron Wash in Emery County, Utah. It was built in 1967, so it is 58 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 781 vehicles a day, roughly 34% of them trucks, projected to reach 937 by 2042. The structure is 294 ft (89.6 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSR-24
CrossesIron Wash
Location13 MI South of JCT I-70
RouteState Highway 24
CountyEmery County
StateUtah
Coordinates38.77441, -110.44096
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length294 ft (89.6 m)
Longest span73 ft (22.2 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic781 (2022)
Projected traffic937 by 2042
Trucks34%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-24 over Iron Wash built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR-24 over Iron Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does SR-24 over Iron Wash carry?

About 781 vehicles per day (2022 count), of which roughly 34% are trucks.

How long is SR-24 over Iron Wash?

The structure is 294 ft (89.6 m) long with a longest span of 73 ft (22.2 m) and a deck 34 ft wide.

Who owns SR-24 over Iron Wash?

It is owned by the State Highway Agency.