US Bridges

Route 421 over Stone Creek

FairPosted for load

Lee County, Virginia · 3.67 to R352-.88 FR Kentu · Structure no. 000000000010774

Built
1932
93 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
1,369
2022 count
Owner
State
State Highway Agency

About this bridge

Route 421 over Stone Creek is a concrete slab carrying Route 421 over Stone Creek in Lee County, Virginia. It was built in 1932, 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,369 vehicles a day, projected to reach 1,526 by 2045. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesRoute 421
CrossesStone Creek
Location3.67 to R352-.88 FR Kentu
RouteU.S. Route 421
CountyLee County
StateVirginia
Coordinates36.76497, -83.11077
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,369 (2022)
Projected traffic1,526 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$188.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 421 over Stone Creek built?

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

What condition is Route 421 over Stone Creek 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 2023.

How much traffic does Route 421 over Stone Creek carry?

About 1,369 vehicles per day (2022 count).

How long is Route 421 over Stone Creek?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns Route 421 over Stone Creek?

It is owned by the State Highway Agency.