US Bridges

Konnarock Rd. over Little Laurel Creek

Good

Smyth County, Virginia · .9 to R600 & .8 Wash. CO · Structure no. 000000000017532

Built
1932
93 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
524
2022 count
Owner
State
State Highway Agency

About this bridge

Konnarock Rd. over Little Laurel Creek is a concrete slab carrying Konnarock Rd. over Little Laurel Creek in Smyth 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 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 524 vehicles a day, projected to reach 584 by 2045. The structure is 26 ft (7.9 m) long and 20 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesKonnarock Rd.
CrossesLittle Laurel Creek
Location.9 to R600 & .8 Wash. CO
RouteCounty Highway 603
Coordinates36.67076, -81.62464
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic524 (2022)
Projected traffic584 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$84.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Konnarock Rd. over Little Laurel Creek built?

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

What condition is Konnarock Rd. over Little Laurel 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 June 2023.

How much traffic does Konnarock Rd. over Little Laurel Creek carry?

About 524 vehicles per day (2022 count).

How long is Konnarock Rd. over Little Laurel Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 20 ft wide.

Who owns Konnarock Rd. over Little Laurel Creek?

It is owned by the State Highway Agency.