US Bridges

Lithia Road / 640 over Back Creek

Good

Botetourt County, Virginia · 0.01-RTE606; 1.05-RTE763 · Structure no. 000000000003435

Built
1958
67 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
238
2016 count
Owner
State
State Highway Agency

About this bridge

Lithia Road / 640 over Back Creek is a steel stringer/multi-beam or girder carrying Lithia Road / 640 over Back Creek in Botetourt County, Virginia. It was built in 1958, so it is 67 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 238 vehicles a day, projected to reach 273 by 2045. The structure is 66 ft (20.1 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLithia Road / 640
CrossesBack Creek
Location0.01-RTE606; 1.05-RTE763
RouteCounty Highway 640
CountyBotetourt County
StateVirginia
Coordinates37.45172, -79.7837
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length66 ft (20.1 m)
Longest span65 ft (19.8 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic238 (2016)
Projected traffic273 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$214.3 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lithia Road / 640 over Back Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Lithia Road / 640 over Back Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Lithia Road / 640 over Back Creek carry?

About 238 vehicles per day (2016 count).

How long is Lithia Road / 640 over Back Creek?

The structure is 66 ft (20.1 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.

Who owns Lithia Road / 640 over Back Creek?

It is owned by the State Highway Agency.