US Bridges

I-15NB (SR-15) over 100 E. in American Fork

Good

Utah County, Utah · SE Area of American Fork · Structure no. 1F 812

Built
2011
14 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
125 ft
1 main span
Daily traffic
209,636
2017 count
Owner
State
State Highway Agency

About this bridge

I-15NB (SR-15) over 100 E. in American Fork is a prestressed concrete stringer/multi-beam or girder carrying I-15NB (SR-15) over 100 E. in American Fork 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 209,636 vehicles a day, roughly 18% of them trucks, projected to reach 251,563 by 2037. The structure is 125 ft (38.1 m) long and 101 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-15NB (SR-15)
Crosses100 E. in American Fork
LocationSE Area of American Fork
RouteInterstate 15
CountyUtah County
StateUtah
Coordinates40.36683, -111.79501
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length125 ft (38.1 m)
Longest span120 ft (36.5 m)
Deck width101 ft (30.7 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic209,636 (2017)
Projected traffic251,563 by 2037
Trucks18%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
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 100 E. in American Fork built?

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

What condition is I-15NB (SR-15) over 100 E. in American Fork in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does I-15NB (SR-15) over 100 E. in American Fork carry?

About 209,636 vehicles per day (2017 count), of which roughly 18% are trucks.

How long is I-15NB (SR-15) over 100 E. in American Fork?

The structure is 125 ft (38.1 m) long with a longest span of 120 ft (36.5 m) and a deck 101 ft wide.

Who owns I-15NB (SR-15) over 100 E. in American Fork?

It is owned by the State Highway Agency.