US Bridges

Plank Road over Ammonett Branch

Fair

Albemarle County, Virginia · 0.74 FR 631 / 1.26 to 719 · Structure no. 000000000000798

Built
1932
93 years old, rebuilt 2008
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
986
2022 count
Owner
State
State Highway Agency

About this bridge

Plank Road over Ammonett Branch is a concrete slab carrying Plank Road over Ammonett Branch in Albemarle County, Virginia. It was built in 1932 and reconstructed in 2008, so it is 93 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 986 vehicles a day, roughly 3% of them trucks, projected to reach 1,040 by 2042. The structure is 27 ft (8.1 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesPlank Road
CrossesAmmonett Branch
Location0.74 FR 631 / 1.26 to 719
RouteCounty Highway 712
CountyAlbemarle County
StateVirginia
Coordinates37.90967, -78.62164
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length27 ft (8.1 m)
Longest span25 ft (7.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic986 (2022)
Projected traffic1,040 by 2042
Trucks3%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$40 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Plank Road over Ammonett Branch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2008.

What condition is Plank Road over Ammonett Branch 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 Plank Road over Ammonett Branch carry?

About 986 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Plank Road over Ammonett Branch?

The structure is 27 ft (8.1 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.

Who owns Plank Road over Ammonett Branch?

It is owned by the State Highway Agency.