US Bridges

Southgate DR Sbl over Route 460

Good

Montgomery County, Virginia · 1.5-SOUTHRTE412 · Structure no. 000000000030239

Built
2017
8 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
159 ft
2 main spans
Daily traffic
4,600
2020 count
Owner
State
State Highway Agency

About this bridge

Southgate DR Sbl over Route 460 is a prestressed concrete stringer/multi-beam or girder carrying Southgate DR Sbl over Route 460 in Montgomery County, Virginia. It was built in 2017, so it is 8 years old, younger than the Virginia average of 50.7 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 4,600 vehicles a day, roughly 2% of them trucks, projected to reach 9,200 by 2040. The structure is 159 ft (48.6 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouthgate DR Sbl
CrossesRoute 460
Location1.5-SOUTHRTE412
RouteInterstate 314
Coordinates37.20939, -80.42741
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating48 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length159 ft (48.6 m)
Longest span80 ft (24.3 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2020)
Projected traffic9,200 by 2040
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Southgate DR Sbl over Route 460 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Southgate DR Sbl over Route 460 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 December 2023.

How much traffic does Southgate DR Sbl over Route 460 carry?

About 4,600 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Southgate DR Sbl over Route 460?

The structure is 159 ft (48.6 m) long with a longest span of 80 ft (24.3 m) and a deck 38 ft wide.

Who owns Southgate DR Sbl over Route 460?

It is owned by the State Highway Agency.