US Bridges

Hardie Stone RD721 over Grassy Branch

Fair

Patrick County, Virginia · 1.40-RT 692; 1.20-RT 627 · Structure no. 000000000027753

Built
2003
22 years old
Condition
Fair
inspected December 2023
Type
Culvert
Steel
Length
25 ft
2 main spans
Daily traffic
427
2022 count
Owner
State
State Highway Agency

About this bridge

Hardie Stone RD721 over Grassy Branch is a steel culvert carrying Hardie Stone RD721 over Grassy Branch in Patrick County, Virginia. It was built in 2003, so it is 22 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 427 vehicles a day, roughly 3% of them trucks, projected to reach 476 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesHardie Stone RD721
CrossesGrassy Branch
Location1.40-RT 692; 1.20-RT 627
RouteCounty Highway 721
CountyPatrick County
StateVirginia
Coordinates36.69678, -80.10124
Functional classRural Major 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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.9 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic427 (2022)
Projected traffic476 by 2042
Trucks3%
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 Hardie Stone RD721 over Grassy Branch built?

It was built in 2003, making it 22 years old in 2025.

What condition is Hardie Stone RD721 over Grassy 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 December 2023.

How much traffic does Hardie Stone RD721 over Grassy Branch carry?

About 427 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Hardie Stone RD721 over Grassy Branch?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m).

Who owns Hardie Stone RD721 over Grassy Branch?

It is owned by the State Highway Agency.