US Bridges

SR-168 over U.P.& L.Co. Penstock

FairPosted for load

Weber County, Utah · 0.5 Mi.No.Of Hill Afb · Structure no. 0D 740

Built
1964
61 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
137 ft
4 main spans
Daily traffic
1,366
2022 count
Owner
State
State Highway Agency

About this bridge

SR-168 over U.P.& L.Co. Penstock is a concrete slab carrying SR-168 over U.P.& L.Co. Penstock in Weber County, Utah. It was built in 1964, so it is 61 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,366 vehicles a day, roughly 5% of them trucks, projected to reach 1,639 by 2042. The structure is 137 ft (41.8 m) long and 38 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR-168
CrossesU.P.& L.Co. Penstock
Location0.5 Mi.No.Of Hill Afb
RouteState Highway 168
CountyWeber County
StateUtah
Coordinates41.1575, -112.00361
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.7 US tons
Inventory rating16.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length137 ft (41.8 m)
Longest span36 ft (11 m)
Deck width38 ft (11.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,366 (2022)
Projected traffic1,639 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR-168 over U.P.& L.Co. Penstock built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR-168 over U.P.& L.Co. Penstock 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 June 2023.

How much traffic does SR-168 over U.P.& L.Co. Penstock carry?

About 1,366 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is SR-168 over U.P.& L.Co. Penstock?

The structure is 137 ft (41.8 m) long with a longest span of 36 ft (11 m) and a deck 38 ft wide.

Who owns SR-168 over U.P.& L.Co. Penstock?

It is owned by the State Highway Agency.