US Bridges

I-15SB (SR-15) over 1600 No.St.Int.X-Rd.

Fair

Utah County, Utah · At the 1600 North Intchg. · Structure no. 3F 814

Built
2011
14 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
203 ft
2 main spans
Daily traffic
203,678
2023 count
Owner
State
State Highway Agency

About this bridge

I-15SB (SR-15) over 1600 No.St.Int.X-Rd. is a prestressed concrete continuous stringer/multi-beam or girder carrying I-15SB (SR-15) over 1600 No.St.Int.X-Rd. 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 203,678 vehicles a day, roughly 20% of them trucks, projected to reach 244,414 by 2043. The structure is 203 ft (61.9 m) long and 101 ft wide.

Location

Open in Google Maps
CarriesI-15SB (SR-15)
Crosses1600 No.St.Int.X-Rd.
LocationAt the 1600 North Intchg.
RouteInterstate 15
CountyUtah County
StateUtah
Coordinates40.32654, -111.73263
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 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 rating62.8 US tons
Inventory rating38.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length203 ft (61.9 m)
Longest span98 ft (30 m)
Deck width101 ft (30.7 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic203,678 (2023)
Projected traffic244,414 by 2043
Trucks20%
Lanes on structure6
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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-15SB (SR-15) over 1600 No.St.Int.X-Rd. built?

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

What condition is I-15SB (SR-15) over 1600 No.St.Int.X-Rd. 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-15SB (SR-15) over 1600 No.St.Int.X-Rd. carry?

About 203,678 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is I-15SB (SR-15) over 1600 No.St.Int.X-Rd.?

The structure is 203 ft (61.9 m) long with a longest span of 98 ft (30 m) and a deck 101 ft wide.

Who owns I-15SB (SR-15) over 1600 No.St.Int.X-Rd.?

It is owned by the State Highway Agency.