US Bridges

Little Mill Road over Harris Swamp

Fair

Sussex County, Virginia · 0.25 FR 656/0.37 to 649 · Structure no. 000000000018339

Built
1964
61 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
270
2022 count
Owner
State
State Highway Agency

About this bridge

Little Mill Road over Harris Swamp is a concrete culvert carrying Little Mill Road over Harris Swamp in Sussex County, Virginia. It was built in 1964, so it is 61 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 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 270 vehicles a day, projected to reach 301 by 2045. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesLittle Mill Road
CrossesHarris Swamp
Location0.25 FR 656/0.37 to 649
RouteCounty Highway 630
CountySussex County
StateVirginia
Coordinates36.86838, -77.49553
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating69 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2022)
Projected traffic301 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 Little Mill Road over Harris Swamp built?

It was built in 1964, making it 61 years old in 2025.

What condition is Little Mill Road over Harris 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 February 2023.

How much traffic does Little Mill Road over Harris Swamp carry?

About 270 vehicles per day (2022 count).

How long is Little Mill Road over Harris Swamp?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns Little Mill Road over Harris Swamp?

It is owned by the State Highway Agency.