US Bridges

Co. Rd. 7th St. over I-15 (SR-15) Nbl & S

Fair

Weber County, Utah · 0.5 Mi.No.Of 12th St.Int. · Structure no. 0F 78

Built
1968
57 years old, rebuilt 2008
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
183 ft
2 main spans
Daily traffic
5,000
2012 count
Owner
State
State Highway Agency

About this bridge

Co. Rd. 7th St. over I-15 (SR-15) Nbl & S is a prestressed concrete stringer/multi-beam or girder carrying Co. Rd. 7th St. over I-15 (SR-15) Nbl & S in Weber County, Utah. It was built in 1968 and reconstructed in 2008, so it is 57 years old, older 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 5,000 vehicles a day, roughly 24% of them trucks, projected to reach 7,000 by 2034. The structure is 183 ft (55.7 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCo. Rd. 7th St.
CrossesI-15 (SR-15) Nbl & S
Location0.5 Mi.No.Of 12th St.Int.
RouteCounty Highway 0
CountyWeber County
StateUtah
Coordinates41.25139, -112.01806
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.9 US tons
Inventory rating52.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length183 ft (55.7 m)
Longest span89 ft (27.2 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2012)
Projected traffic7,000 by 2034
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.2 mi (10 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 Co. Rd. 7th St. over I-15 (SR-15) Nbl & S built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2008.

What condition is Co. Rd. 7th St. over I-15 (SR-15) Nbl & S 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 August 2023.

How much traffic does Co. Rd. 7th St. over I-15 (SR-15) Nbl & S carry?

About 5,000 vehicles per day (2012 count), of which roughly 24% are trucks.

How long is Co. Rd. 7th St. over I-15 (SR-15) Nbl & S?

The structure is 183 ft (55.7 m) long with a longest span of 89 ft (27.2 m) and a deck 36 ft wide.

Who owns Co. Rd. 7th St. over I-15 (SR-15) Nbl & S?

It is owned by the State Highway Agency.