US Bridges

SR-7 Intchg.X-Road over I-15 (SR-15)

Fair

Washington County, Utah · At Southern Parkway Int. · Structure no. 0F 753

Built
2010
15 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
185 ft
2 main spans
Daily traffic
4,837
2022 count
Owner
State
State Highway Agency

About this bridge

SR-7 Intchg.X-Road over I-15 (SR-15) is a prestressed concrete continuous stringer/multi-beam or girder carrying SR-7 Intchg.X-Road over I-15 (SR-15) in Washington County, Utah. It was built in 2010, so it is 15 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 4,837 vehicles a day, roughly 11% of them trucks, projected to reach 5,804 by 2042. The structure is 185 ft (56.3 m) long and 197 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR-7 Intchg.X-Road
CrossesI-15 (SR-15)
LocationAt Southern Parkway Int.
RouteState Highway 7
CountyWashington County
StateUtah
Coordinates37.0279, -113.60547
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
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 rating90.4 US tons
Inventory rating52.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length185 ft (56.3 m)
Longest span91 ft (27.7 m)
Deck width197 ft (60.1 m)
Roadway width169 ft (51.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,837 (2022)
Projected traffic5,804 by 2042
Trucks11%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

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 SR-7 Intchg.X-Road over I-15 (SR-15) built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR-7 Intchg.X-Road over I-15 (SR-15) 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 SR-7 Intchg.X-Road over I-15 (SR-15) carry?

About 4,837 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SR-7 Intchg.X-Road over I-15 (SR-15)?

The structure is 185 ft (56.3 m) long with a longest span of 91 ft (27.7 m) and a deck 197 ft wide.

Who owns SR-7 Intchg.X-Road over I-15 (SR-15)?

It is owned by the State Highway Agency.