US Bridges

Harts Mill Road over South Anna River

Good

Louisa County, Virginia · 1.10 FR 522 & 1.50 to 640 · Structure no. 000000000011515

Built
1932
93 years old, rebuilt 2021
Condition
Good
inspected August 2024
Type
Truss - Thru
Steel
Length
117 ft
1 main span
Daily traffic
84
2019 count
Owner
State
State Highway Agency

About this bridge

Harts Mill Road over South Anna River is a steel truss - thru carrying Harts Mill Road over South Anna River in Louisa County, Virginia. It was built in 1932 and reconstructed in 2021, so it is 93 years old, older 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 84 vehicles a day, projected to reach 112 by 2045. The structure is 117 ft (35.8 m) long and 13 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesHarts Mill Road
CrossesSouth Anna River
Location1.10 FR 522 & 1.50 to 640
RouteCounty Highway 647
CountyLouisa County
StateVirginia
Coordinates37.88524, -77.91562
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadHL 93
Structure length117 ft (35.8 m)
Longest span80 ft (24.4 m)
Deck width13 ft (4 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84 (2019)
Projected traffic112 by 2045
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$560 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Harts Mill Road over South Anna River built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2021.

What condition is Harts Mill Road over South Anna River 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 August 2024.

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

About 84 vehicles per day (2019 count).

How long is Harts Mill Road over South Anna River?

The structure is 117 ft (35.8 m) long with a longest span of 80 ft (24.4 m) and a deck 13 ft wide.

Who owns Harts Mill Road over South Anna River?

It is owned by the State Highway Agency.