US Bridges

County Road over Malad River

Poor

Box Elder County, Utah · South Side of Elwood · Structure no. 003034F

Built
1978
47 years old
Condition
Poor
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
139
2010 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

County Road over Malad River is a prestressed concrete tee beam carrying County Road over Malad River in Box Elder County, Utah. It was built in 1978, so it is 47 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 139 vehicles a day, roughly 5% of them trucks, projected to reach 168 by 2030. The structure is 32 ft (9.7 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCounty Road
CrossesMalad River
LocationSouth Side of Elwood
RouteCounty Highway 1120
StateUtah
Coordinates41.65539, -112.15997
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length32 ft (9.7 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic139 (2010)
Projected traffic168 by 2030
Trucks5%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 County Road over Malad River built?

It was built in 1978, making it 47 years old in 2025.

What condition is County Road over Malad River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does County Road over Malad River carry?

About 139 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is County Road over Malad River?

The structure is 32 ft (9.7 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns County Road over Malad River?

It is owned by the Town or Township Highway Agency.