US Bridges

Route 421 over Stone Creek

Fair

Lee County, Virginia · .05 to Rt. 352;2.9 to 58A · Structure no. 000000000010767

Built
1935
90 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
55 ft
2 main spans
Daily traffic
3,584
2022 count
Owner
State
State Highway Agency

About this bridge

Route 421 over Stone Creek is a concrete tee beam carrying Route 421 over Stone Creek in Lee County, Virginia. It was built in 1935, so it is 90 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 3,584 vehicles a day, projected to reach 3,996 by 2045. The structure is 55 ft (16.8 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesRoute 421
CrossesStone Creek
Location.05 to Rt. 352;2.9 to 58A
RouteU.S. Route 421
CountyLee County
StateVirginia
Coordinates36.77678, -83.05644
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating39 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span28 ft (8.5 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,584 (2022)
Projected traffic3,996 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$269.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 421 over Stone Creek built?

It was built in 1935, making it 90 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 March 2023.

How much traffic does Route 421 over Stone Creek carry?

About 3,584 vehicles per day (2022 count).

How long is Route 421 over Stone Creek?

The structure is 55 ft (16.8 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns Route 421 over Stone Creek?

It is owned by the State Highway Agency.