US Bridges

Killenger Creek RD over White Rock Creek

Good

Smyth County, Virginia · 0.02FR 705;0.4TO End Main · Structure no. 000000000028566

Built
1989
36 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
30
2017 count
Owner
State
State Highway Agency

About this bridge

Killenger Creek RD over White Rock Creek is a concrete slab carrying Killenger Creek RD over White Rock Creek in Smyth County, Virginia. It was built in 1989, so it is 36 years old, younger 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 30 vehicles a day, projected to reach 47 by 2045. The structure is 22 ft (6.7 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesKillenger Creek RD
CrossesWhite Rock Creek
Location0.02FR 705;0.4TO End Main
RouteCounty Highway 715
Coordinates36.82652, -81.30156
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating83 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2017)
Projected traffic47 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Killenger Creek RD over White Rock Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Killenger Creek RD over White Rock 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 May 2023.

How much traffic does Killenger Creek RD over White Rock Creek carry?

About 30 vehicles per day (2017 count).

How long is Killenger Creek RD over White Rock Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Killenger Creek RD over White Rock Creek?

It is owned by the State Highway Agency.