US Bridges

SR-147 over I-15 (SR-15) & UPRR

Fair

Utah County, Utah · 0.6 Mi. W. Spanish Fork · Structure no. 0C 464

Built
1968
57 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
446 ft
6 main spans
Daily traffic
1,960
2014 count
Owner
State
State Highway Agency

About this bridge

SR-147 over I-15 (SR-15) & UPRR is a steel stringer/multi-beam or girder carrying SR-147 over I-15 (SR-15) & UPRR in Utah County, Utah. It was built in 1968, 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 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 1,960 vehicles a day, roughly 23% of them trucks, projected to reach 2,450 by 2034. The structure is 446 ft (135.8 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR-147
CrossesI-15 (SR-15) & UPRR
Location0.6 Mi. W. Spanish Fork
RouteState Highway 147
CountyUtah County
StateUtah
Coordinates40.11539, -111.66959
Functional classUrban 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
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.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length446 ft (135.8 m)
Longest span98 ft (30 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,960 (2014)
Projected traffic2,450 by 2034
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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 SR-147 over I-15 (SR-15) & UPRR built?

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

What condition is SR-147 over I-15 (SR-15) & UPRR 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 SR-147 over I-15 (SR-15) & UPRR carry?

About 1,960 vehicles per day (2014 count), of which roughly 23% are trucks.

How long is SR-147 over I-15 (SR-15) & UPRR?

The structure is 446 ft (135.8 m) long with a longest span of 98 ft (30 m) and a deck 36 ft wide.

Who owns SR-147 over I-15 (SR-15) & UPRR?

It is owned by the State Highway Agency.