US Bridges

Konnarock Rd. over Laurel Creek

Fair

Smyth County, Virginia · .45 to R600;1.25TO Was.Co · Structure no. 000000000017536

Built
1968
57 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
524
2022 count
Owner
State
State Highway Agency

About this bridge

Konnarock Rd. over Laurel Creek is a concrete culvert carrying Konnarock Rd. over Laurel Creek in Smyth County, Virginia. It was built in 1968, so it is 57 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 524 vehicles a day, projected to reach 584 by 2045. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesKonnarock Rd.
CrossesLaurel Creek
Location.45 to R600;1.25TO Was.Co
RouteCounty Highway 603
CountySmyth County
StateVirginia
Coordinates36.66956, -81.61894
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed0.6 mi (1 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 Konnarock Rd. over Laurel Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Konnarock Rd. over Laurel 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 June 2023.

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

About 524 vehicles per day (2022 count).

How long is Konnarock Rd. over Laurel Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns Konnarock Rd. over Laurel Creek?

It is owned by the State Highway Agency.