US Bridges

450 East Street over American Fork River

Fair

Utah County, Utah · 520 N. 450 E. Amer. Fork · Structure no. 049094F

Built
1996
29 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
252
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

450 East Street over American Fork River is a prestressed concrete tee beam carrying 450 East Street over American Fork River in Utah County, Utah. It was built in 1996, so it is 29 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 252 vehicles a day, roughly 5% of them trucks, projected to reach 306 by 2030. The structure is 54 ft (16.6 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries450 East Street
CrossesAmerican Fork River
Location520 N. 450 E. Amer. Fork
RouteCity Street 0
StateUtah
Coordinates40.38736, -111.78778
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length54 ft (16.6 m)
Longest span53 ft (16.2 m)
Deck width84 ft (25.6 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic252 (2010)
Projected traffic306 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 450 East Street over American Fork River built?

It was built in 1996, making it 29 years old in 2025.

What condition is 450 East Street over American Fork River 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 2023.

How much traffic does 450 East Street over American Fork River carry?

About 252 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is 450 East Street over American Fork River?

The structure is 54 ft (16.6 m) long with a longest span of 53 ft (16.2 m) and a deck 84 ft wide.

Who owns 450 East Street over American Fork River?

It is owned by the City or Municipal Highway Agency.