US Bridges

Elgood Mtn. RD/648 over Adair Run

Fair

Giles County, Virginia · 0.02-RTE 650;0.50-WVA Sl · Structure no. 000000000008441

Built
1951
74 years old
Condition
Fair
inspected August 2024
Type
Arch - Deck
Concrete
Length
48 ft
1 main span
Daily traffic
233
2017 count
Owner
State
State Highway Agency

About this bridge

Elgood Mtn. RD/648 over Adair Run is a concrete arch - deck carrying Elgood Mtn. RD/648 over Adair Run in Giles County, Virginia. It was built in 1951, so it is 74 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 233 vehicles a day, projected to reach 237 by 2042. The structure is 48 ft (14.6 m) long and 18 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesElgood Mtn. RD/648
CrossesAdair Run
Location0.02-RTE 650;0.50-WVA Sl
RouteCounty Highway 648
CountyGiles County
StateVirginia
Coordinates37.37423, -80.86949
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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating19 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width18 ft (5.5 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic233 (2017)
Projected traffic237 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$830.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Elgood Mtn. RD/648 over Adair Run built?

It was built in 1951, making it 74 years old in 2025.

What condition is Elgood Mtn. RD/648 over Adair Run 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 August 2024.

How much traffic does Elgood Mtn. RD/648 over Adair Run carry?

About 233 vehicles per day (2017 count).

How long is Elgood Mtn. RD/648 over Adair Run?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 18 ft wide.

Who owns Elgood Mtn. RD/648 over Adair Run?

It is owned by the State Highway Agency.