US Bridges

6000 West St.Co.Rd over Malad River

Good

Box Elder County, Utah · 1.0 Mile Sw. of Plymouth · Structure no. 003080F

Built
2013
12 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
69
2013 count
Owner
County
County Highway Agency

About this bridge

6000 West St.Co.Rd over Malad River is a prestressed concrete stringer/multi-beam or girder carrying 6000 West St.Co.Rd over Malad River in Box Elder County, Utah. It was built in 2013, so it is 12 years old, younger 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 69 vehicles a day, roughly 2% of them trucks, projected to reach 84 by 2033. The structure is 73 ft (22.3 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries6000 West St.Co.Rd
CrossesMalad River
Location1.0 Mile Sw. of Plymouth
RouteCounty Highway 1135
StateUtah
Coordinates41.86428, -112.16689
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.1 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.3 m)
Longest span70 ft (21.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2013)
Projected traffic84 by 2033
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 6000 West St.Co.Rd over Malad River built?

It was built in 2013, making it 12 years old in 2025.

What condition is 6000 West St.Co.Rd over Malad River 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 November 2023.

How much traffic does 6000 West St.Co.Rd over Malad River carry?

About 69 vehicles per day (2013 count), of which roughly 2% are trucks.

How long is 6000 West St.Co.Rd over Malad River?

The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.3 m) and a deck 35 ft wide.

Who owns 6000 West St.Co.Rd over Malad River?

It is owned by the County Highway Agency.