US Bridges

SR-7 Southern Pkw. over Mesa Canyon Wash

Fair

Washington County, Utah · South of St. George · Structure no. 0D 842

Built
2009
16 years old
Condition
Fair
inspected January 2023
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
8,215
2021 count
Owner
State
State Highway Agency

About this bridge

SR-7 Southern Pkw. over Mesa Canyon Wash is a concrete frame carrying SR-7 Southern Pkw. over Mesa Canyon Wash in Washington County, Utah. It was built in 2009, so it is 16 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 8,215 vehicles a day, roughly 17% of them trucks, projected to reach 9,858 by 2041. The structure is 28 ft (8.4 m) long and 204 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSR-7 Southern Pkw.
CrossesMesa Canyon Wash
LocationSouth of St. George
RouteState Highway 7
CountyWashington County
StateUtah
Coordinates37.00465, -113.52772
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 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 rating44.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length28 ft (8.4 m)
Longest span26 ft (8 m)
Deck width204 ft (62.3 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,215 (2021)
Projected traffic9,858 by 2041
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Southern Pkw. over Mesa Canyon Wash built?

It was built in 2009, making it 16 years old in 2025.

What condition is SR-7 Southern Pkw. over Mesa Canyon Wash 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 Southern Pkw. over Mesa Canyon Wash carry?

About 8,215 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is SR-7 Southern Pkw. over Mesa Canyon Wash?

The structure is 28 ft (8.4 m) long with a longest span of 26 ft (8 m) and a deck 204 ft wide.

Who owns SR-7 Southern Pkw. over Mesa Canyon Wash?

It is owned by the State Highway Agency.