US Bridges

SR 13 over Malad River

Fair

Box Elder County, Utah · 1.5 Mi.S.Bear River City · Structure no. 0F 552

Built
1989
36 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
2,209
2021 count
Owner
State
State Highway Agency

About this bridge

SR 13 over Malad River is a prestressed concrete stringer/multi-beam or girder carrying SR 13 over Malad River in Box Elder County, Utah. It was built in 1989, so it is 36 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 2,209 vehicles a day, roughly 33% of them trucks, projected to reach 2,651 by 2041. The structure is 110 ft (33.5 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 13
CrossesMalad River
Location1.5 Mi.S.Bear River City
RouteState Highway 13
StateUtah
Coordinates41.59333, -112.12889
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.2 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length110 ft (33.5 m)
Longest span107 ft (32.6 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,209 (2021)
Projected traffic2,651 by 2041
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 13 over Malad River built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR 13 over Malad River 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 April 2023.

How much traffic does SR 13 over Malad River carry?

About 2,209 vehicles per day (2021 count), of which roughly 33% are trucks.

How long is SR 13 over Malad River?

The structure is 110 ft (33.5 m) long with a longest span of 107 ft (32.6 m) and a deck 47 ft wide.

Who owns SR 13 over Malad River?

It is owned by the State Highway Agency.