US Bridges

Cobb Road over Branch

Good

Southampton County, Virginia · 0.05 MI to Int. Rte. 646 · Structure no. 000000000017823

Built
1978
47 years old
Condition
Good
inspected October 2023
Type
Culvert
Other
Length
20 ft
3 main spans
Daily traffic
155
2018 count
Owner
State
State Highway Agency

About this bridge

Cobb Road over Branch is a other culvert carrying Cobb Road over Branch in Southampton County, Virginia. It was built in 1978, so it is 47 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 155 vehicles a day, projected to reach 176 by 2045. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCobb Road
CrossesBranch
Location0.05 MI to Int. Rte. 646
RouteCounty Highway 642
CountySouthampton County
StateVirginia
Coordinates36.77044, -76.97689
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialOther
DeckNot applicable
Main spans3
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2018)
Projected traffic176 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Cobb Road over Branch built?

It was built in 1978, making it 47 years old in 2025.

What condition is Cobb Road over Branch 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 October 2023.

How much traffic does Cobb Road over Branch carry?

About 155 vehicles per day (2018 count).

How long is Cobb Road over Branch?

The structure is 20 ft (6.1 m) long with a longest span of 6 ft (1.8 m).

Who owns Cobb Road over Branch?

It is owned by the State Highway Agency.