US Bridges

White Marsh Road over Blackwater River

Fair

Surry County, Virginia · 0.06 Mile from Route 618 · Structure no. 000000000018200

Built
1979
46 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
460 ft
8 main spans
Daily traffic
326
2022 count
Owner
State
State Highway Agency

About this bridge

White Marsh Road over Blackwater River is a steel stringer/multi-beam or girder carrying White Marsh Road over Blackwater River in Surry County, Virginia. It was built in 1979, so it is 46 years old, younger 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 6 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 326 vehicles a day, projected to reach 412 by 2045. The structure is 460 ft (140.1 m) long and 30 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesWhite Marsh Road
CrossesBlackwater River
Location0.06 Mile from Route 618
RouteCounty Highway 617
Coordinates37.02482, -76.87629
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.9 US tons
Inventory rating51.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length460 ft (140.1 m)
Longest span90 ft (27.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic326 (2022)
Projected traffic412 by 2045
Trucks0%
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 White Marsh Road over Blackwater River built?

It was built in 1979, making it 46 years old in 2025.

What condition is White Marsh Road over Blackwater 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 White Marsh Road over Blackwater River carry?

About 326 vehicles per day (2022 count).

How long is White Marsh Road over Blackwater River?

The structure is 460 ft (140.1 m) long with a longest span of 90 ft (27.4 m) and a deck 30 ft wide.

Who owns White Marsh Road over Blackwater River?

It is owned by the State Highway Agency.