US Bridges

Plank Road over Assamoosick Swamp

Fair

Southampton County, Virginia · 4.30 MI to Int. Rte. 58 · Structure no. 000000000017721

Built
1980
45 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
244 ft
5 main spans
Daily traffic
2,730
2022 count
Owner
State
State Highway Agency

About this bridge

Plank Road over Assamoosick Swamp is a steel stringer/multi-beam or girder carrying Plank Road over Assamoosick Swamp in Southampton County, Virginia. It was built in 1980, so it is 45 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 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 2,730 vehicles a day, roughly 1% of them trucks, projected to reach 2,795 by 2042. The structure is 244 ft (74.4 m) long and 42 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesPlank Road
CrossesAssamoosick Swamp
Location4.30 MI to Int. Rte. 58
RouteState Highway 35
CountySouthampton County
StateVirginia
Coordinates36.77264, -77.09889
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length244 ft (74.4 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,730 (2022)
Projected traffic2,795 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Plank Road over Assamoosick Swamp built?

It was built in 1980, making it 45 years old in 2025.

What condition is Plank Road over Assamoosick Swamp 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 April 2024.

How much traffic does Plank Road over Assamoosick Swamp carry?

About 2,730 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Plank Road over Assamoosick Swamp?

The structure is 244 ft (74.4 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns Plank Road over Assamoosick Swamp?

It is owned by the State Highway Agency.