US Bridges

Route 29 Nbl over Rt. 677 & NS Railway

Fair

Campbell County, Virginia · 1.78-RT 128 / 0.32-RT 501 · Structure no. 000000000020568

Built
1976
49 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
283 ft
4 main spans
Daily traffic
12,399
2022 count
Owner
State
State Highway Agency

About this bridge

Route 29 Nbl over Rt. 677 & NS Railway is a steel stringer/multi-beam or girder carrying Route 29 Nbl over Rt. 677 & NS Railway in Campbell County, Virginia. It was built in 1976, so it is 49 years old, younger 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 12,399 vehicles a day, roughly 1% of them trucks, projected to reach 18,103 by 2045. The structure is 283 ft (86.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 29 Nbl
CrossesRt. 677 & NS Railway
Location1.78-RT 128 / 0.32-RT 501
RouteU.S. Route 29
CountyCampbell County
StateVirginia
Coordinates37.37699, -79.13629
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating64 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length283 ft (86.3 m)
Longest span90 ft (27.4 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,399 (2022)
Projected traffic18,103 by 2045
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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$422.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 29 Nbl over Rt. 677 & NS Railway built?

It was built in 1976, making it 49 years old in 2025.

What condition is Route 29 Nbl over Rt. 677 & NS Railway 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 February 2023.

How much traffic does Route 29 Nbl over Rt. 677 & NS Railway carry?

About 12,399 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 29 Nbl over Rt. 677 & NS Railway?

The structure is 283 ft (86.3 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.

Who owns Route 29 Nbl over Rt. 677 & NS Railway?

It is owned by the State Highway Agency.