US Bridges

Rock Mill Rd. over Willis River

Fair

Buckingham County, Virginia · 1.29-RT.707/0.76-RT.609 · Structure no. 000000000004077

Built
1974
51 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
3 main spans
Daily traffic
232
2018 count
Owner
State
State Highway Agency

About this bridge

Rock Mill Rd. over Willis River is a steel stringer/multi-beam or girder carrying Rock Mill Rd. over Willis River in Buckingham County, Virginia. It was built in 1974, so it is 51 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 232 vehicles a day, projected to reach 357 by 2042. The structure is 93 ft (28.2 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRock Mill Rd.
CrossesWillis River
Location1.29-RT.707/0.76-RT.609
RouteCounty Highway 633
CountyBuckingham County
StateVirginia
Coordinates37.45134, -78.51239
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length93 ft (28.2 m)
Longest span31 ft (9.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2018)
Projected traffic357 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Rock Mill Rd. over Willis River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Rock Mill Rd. over Willis 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 September 2024.

How much traffic does Rock Mill Rd. over Willis River carry?

About 232 vehicles per day (2018 count).

How long is Rock Mill Rd. over Willis River?

The structure is 93 ft (28.2 m) long with a longest span of 31 ft (9.5 m) and a deck 24 ft wide.

Who owns Rock Mill Rd. over Willis River?

It is owned by the State Highway Agency.