US Bridges

Byrd Mill Road over South Anna River

FairPosted for load

Louisa County, Virginia · 1.70 from 640 &.46 to 674 · Structure no. 000000000011519

Built
1958
67 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
263 ft
3 main spans
Daily traffic
478
2019 count
Owner
State
State Highway Agency

About this bridge

Byrd Mill Road over South Anna River is a steel continuous stringer/multi-beam or girder carrying Byrd Mill Road over South Anna River in Louisa County, Virginia. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 478 vehicles a day, projected to reach 727 by 2045. The structure is 263 ft (80.3 m) long and 29 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesByrd Mill Road
CrossesSouth Anna River
Location1.70 from 640 &.46 to 674
RouteCounty Highway 649
CountyLouisa County
StateVirginia
Coordinates37.98791, -78.08058
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length263 ft (80.3 m)
Longest span100 ft (30.5 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic478 (2019)
Projected traffic727 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Byrd Mill Road over South Anna River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Byrd Mill 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 October 2023.

How much traffic does Byrd Mill Road over South Anna River carry?

About 478 vehicles per day (2019 count).

How long is Byrd Mill Road over South Anna River?

The structure is 263 ft (80.3 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.

Who owns Byrd Mill Road over South Anna River?

It is owned by the State Highway Agency.