US Bridges

Mountain Road over South Anna River

Fair

Hanover County, Virginia · .67 FR 671 & 1.60 to 670 · Structure no. 000000000009379

Built
1970
55 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
180 ft
4 main spans
Daily traffic
10,596
2022 count
Owner
State
State Highway Agency

About this bridge

Mountain Road over South Anna River is a concrete continuous slab carrying Mountain Road over South Anna River in Hanover County, Virginia. It was built in 1970, so it is 55 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 10,596 vehicles a day, roughly 3% of them trucks, projected to reach 14,582 by 2042. The structure is 180 ft (54.9 m) long and 46 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesMountain Road
CrossesSouth Anna River
Location.67 FR 671 & 1.60 to 670
RouteU.S. Route 33
CountyHanover County
StateVirginia
Coordinates37.76001, -77.61249
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length180 ft (54.9 m)
Longest span50 ft (15.2 m)
Deck width46 ft (14 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,596 (2022)
Projected traffic14,582 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$900 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mountain Road over South Anna River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Mountain Road over South Anna River 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 February 2024.

How much traffic does Mountain Road over South Anna River carry?

About 10,596 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Mountain Road over South Anna River?

The structure is 180 ft (54.9 m) long with a longest span of 50 ft (15.2 m) and a deck 46 ft wide.

Who owns Mountain Road over South Anna River?

It is owned by the State Highway Agency.