US Bridges

I-15NB (SR-15) over Provo Center Street

Fair

Utah County, Utah · Provo Center St. Intchg. · Structure no. 1C 994

Built
2011
14 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
2 main spans
Daily traffic
135,161
2022 count
Owner
State
State Highway Agency

About this bridge

I-15NB (SR-15) over Provo Center Street is a steel continuous stringer/multi-beam or girder carrying I-15NB (SR-15) over Provo Center Street in Utah County, Utah. It was built in 2011, so it is 14 years old, younger 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 135,161 vehicles a day, roughly 23% of them trucks, projected to reach 162,193 by 2042. The structure is 275 ft (83.9 m) long and 88 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-15NB (SR-15)
CrossesProvo Center Street
LocationProvo Center St. Intchg.
RouteInterstate 15
CountyUtah County
StateUtah
Coordinates40.23378, -111.68456
Functional classUrban Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length275 ft (83.9 m)
Longest span141 ft (43.1 m)
Deck width88 ft (26.9 m)
Roadway width86 ft (26.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135,161 (2022)
Projected traffic162,193 by 2042
Trucks23%
Lanes on structure5
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-15NB (SR-15) over Provo Center Street built?

It was built in 2011, making it 14 years old in 2025.

What condition is I-15NB (SR-15) over Provo Center Street 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 January 2023.

How much traffic does I-15NB (SR-15) over Provo Center Street carry?

About 135,161 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is I-15NB (SR-15) over Provo Center Street?

The structure is 275 ft (83.9 m) long with a longest span of 141 ft (43.1 m) and a deck 88 ft wide.

Who owns I-15NB (SR-15) over Provo Center Street?

It is owned by the State Highway Agency.