US Bridges

St.Clairs Creek RD over S Fork Holston River

Fair

Smyth County, Virginia · 0.01 to 762; 0.11 to 800 · Structure no. 000000000017520

Built
1964
61 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
100 ft
3 main spans
Daily traffic
694
2022 count
Owner
State
State Highway Agency

About this bridge

St.Clairs Creek RD over S Fork Holston River is a concrete tee beam carrying St.Clairs Creek RD over S Fork Holston River in Smyth County, Virginia. It was built in 1964, so it is 61 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.

It carries about 694 vehicles a day, projected to reach 1,013 by 2042. The structure is 100 ft (30.5 m) long and 29 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

Location

Open in Google Maps
CarriesSt.Clairs Creek RD
CrossesS Fork Holston River
Location0.01 to 762; 0.11 to 800
RouteCounty Highway 600
CountySmyth County
StateVirginia
Coordinates36.75563, -81.64843
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 rating61 US tons
Inventory rating47 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length100 ft (30.5 m)
Longest span34 ft (10.4 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic694 (2022)
Projected traffic1,013 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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$315.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was St.Clairs Creek RD over S Fork Holston River built?

It was built in 1964, making it 61 years old in 2025.

What condition is St.Clairs Creek RD over S Fork Holston River 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 October 2024.

How much traffic does St.Clairs Creek RD over S Fork Holston River carry?

About 694 vehicles per day (2022 count).

How long is St.Clairs Creek RD over S Fork Holston River?

The structure is 100 ft (30.5 m) long with a longest span of 34 ft (10.4 m) and a deck 29 ft wide.

Who owns St.Clairs Creek RD over S Fork Holston River?

It is owned by the State Highway Agency.