US Bridges

Slateriver Mill RD over Slate River

Good

Buckingham County, Virginia · 1.10-RT.658 / 0.42-RT.795 · Structure no. 000000000004092

Built
1976
49 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
223 ft
2 main spans
Daily traffic
667
2022 count
Owner
State
State Highway Agency

About this bridge

Slateriver Mill RD over Slate River is a steel stringer/multi-beam or girder carrying Slateriver Mill RD over Slate River in Buckingham County, Virginia. It was built in 1976, so it is 49 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 667 vehicles a day, roughly 1% of them trucks, projected to reach 744 by 2042. The structure is 223 ft (68 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesSlateriver Mill RD
CrossesSlate River
Location1.10-RT.658 / 0.42-RT.795
RouteCounty Highway 649
Coordinates37.59316, -78.53007
Functional classRural Minor Collector

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating91.1 US tons
Inventory rating70 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length223 ft (68 m)
Longest span111 ft (33.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic667 (2022)
Projected traffic744 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Slateriver Mill RD over Slate River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Slateriver Mill RD over Slate 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 November 2023.

How much traffic does Slateriver Mill RD over Slate River carry?

About 667 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Slateriver Mill RD over Slate River?

The structure is 223 ft (68 m) long with a longest span of 111 ft (33.8 m) and a deck 28 ft wide.

Who owns Slateriver Mill RD over Slate River?

It is owned by the State Highway Agency.