US Bridges

Cornerstone Rd. over Slate Creek

Fair

Buchanan County, Virginia · 0.0-RT. 83; 0.00-DEAD End · Structure no. 000000000029706

Built
1932
93 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
60
2011 count
Owner
County
County Highway Agency

About this bridge

Cornerstone Rd. over Slate Creek is a steel stringer/multi-beam or girder carrying Cornerstone Rd. over Slate Creek in Buchanan 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.

It carries about 60 vehicles a day, projected to reach 90 by 2042. The structure is 45 ft (13.7 m) long and 16 ft wide. If it were closed, the detour would be 198.8 mi (320 km).

Location

Open in Google Maps
CarriesCornerstone Rd.
CrossesSlate Creek
Location0.0-RT. 83; 0.00-DEAD End
RouteCity Street 3108
CountyBuchanan County
StateVirginia
Coordinates37.31833, -81.99686
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span34 ft (10.5 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2011)
Projected traffic90 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed198.8 mi (320 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$567 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cornerstone Rd. over Slate Creek built?

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

What condition is Cornerstone Rd. over Slate 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 November 2023.

How much traffic does Cornerstone Rd. over Slate Creek carry?

About 60 vehicles per day (2011 count).

How long is Cornerstone Rd. over Slate Creek?

The structure is 45 ft (13.7 m) long with a longest span of 34 ft (10.5 m) and a deck 16 ft wide.

Who owns Cornerstone Rd. over Slate Creek?

It is owned by the County Highway Agency.