US Bridges

I-15 NB Off Ramp over I-15 NB on Ramp

Good

Utah County, Utah · Lehi Main to SR-92 · Structure no. 1E 2733

Built
2020
5 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
31 ft
1 main span
Daily traffic
20,000
2017 count
Owner
State
State Highway Agency

About this bridge

I-15 NB Off Ramp over I-15 NB on Ramp is a concrete culvert carrying I-15 NB Off Ramp over I-15 NB on Ramp in Utah County, Utah. It was built in 2020, so it is 5 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 20,000 vehicles a day, roughly 17% of them trucks, projected to reach 25,000 by 2037. The structure is 31 ft (9.5 m) long and 156 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-15 NB Off Ramp
CrossesI-15 NB on Ramp
LocationLehi Main to SR-92
RouteInterstate 15
CountyUtah County
StateUtah
Coordinates40.42694, -111.88556
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
Culvert7 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 rating60.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length31 ft (9.5 m)
Longest span31 ft (9.5 m)
Deck width156 ft (47.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20,000 (2017)
Projected traffic25,000 by 2037
Trucks17%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 I-15 NB Off Ramp over I-15 NB on Ramp built?

It was built in 2020, making it 5 years old in 2025.

What condition is I-15 NB Off Ramp over I-15 NB on Ramp 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-15 NB Off Ramp over I-15 NB on Ramp carry?

About 20,000 vehicles per day (2017 count), of which roughly 17% are trucks.

How long is I-15 NB Off Ramp over I-15 NB on Ramp?

The structure is 31 ft (9.5 m) long with a longest span of 31 ft (9.5 m) and a deck 156 ft wide.

Who owns I-15 NB Off Ramp over I-15 NB on Ramp?

It is owned by the State Highway Agency.