US Bridges

US-6 (SR-6) over SR-147

Fair

Utah County, Utah · 4th No.St.In Spanish Fork · Structure no. 0F 263

Built
1971
54 years old, rebuilt 2000
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
25,245
2014 count
Owner
State
State Highway Agency

About this bridge

US-6 (SR-6) over SR-147 is a prestressed concrete stringer/multi-beam or girder carrying US-6 (SR-6) over SR-147 in Utah County, Utah. It was built in 1971 and reconstructed in 2000, so it is 54 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.

It carries about 25,245 vehicles a day, roughly 29% of them trucks, projected to reach 31,557 by 2034. The structure is 104 ft (31.6 m) long and 68 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS-6 (SR-6)
CrossesSR-147
Location4th No.St.In Spanish Fork
RouteState Highway 6
CountyUtah County
StateUtah
Coordinates40.11534, -111.63564
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length104 ft (31.6 m)
Longest span99 ft (30.2 m)
Deck width68 ft (20.7 m)
Roadway width63 ft (19.1 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic25,245 (2014)
Projected traffic31,557 by 2034
Trucks29%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 US-6 (SR-6) over SR-147 built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2000.

What condition is US-6 (SR-6) over SR-147 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 September 2024.

How much traffic does US-6 (SR-6) over SR-147 carry?

About 25,245 vehicles per day (2014 count), of which roughly 29% are trucks.

How long is US-6 (SR-6) over SR-147?

The structure is 104 ft (31.6 m) long with a longest span of 99 ft (30.2 m) and a deck 68 ft wide.

Who owns US-6 (SR-6) over SR-147?

It is owned by the State Highway Agency.