US Bridges

Route 23 Nbl & Sbl over Norfork Southern Railway

Good

Lee County, Virginia · 2.00FRWISEC.L.;2.3TOSCOCL · Structure no. 000000000010697

Built
1975
50 years old, rebuilt 2023
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
151 ft
3 main spans
Daily traffic
4,646
2022 count
Owner
State
State Highway Agency

About this bridge

Route 23 Nbl & Sbl over Norfork Southern Railway is a steel stringer/multi-beam or girder carrying Route 23 Nbl & Sbl over Norfork Southern Railway in Lee County, Virginia. It was built in 1975 and reconstructed in 2023, so it is 50 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 4,646 vehicles a day, roughly 1% of them trucks, projected to reach 6,783 by 2045. The structure is 151 ft (45.9 m) long and 43 ft wide.

CarriesRoute 23 Nbl & Sbl
CrossesNorfork Southern Railway
Location2.00FRWISEC.L.;2.3TOSCOCL
RouteU.S. Route 23
Coordinates36.79035, -82.81271
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79 US tons
Inventory rating61 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length151 ft (45.9 m)
Longest span52 ft (16 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,646 (2022)
Projected traffic6,783 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$247 million (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 23 Nbl & Sbl over Norfork Southern Railway built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2023.

What condition is Route 23 Nbl & Sbl over Norfork Southern Railway 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 December 2023.

How much traffic does Route 23 Nbl & Sbl over Norfork Southern Railway carry?

About 4,646 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Route 23 Nbl & Sbl over Norfork Southern Railway?

The structure is 151 ft (45.9 m) long with a longest span of 52 ft (16 m) and a deck 43 ft wide.

Who owns Route 23 Nbl & Sbl over Norfork Southern Railway?

It is owned by the State Highway Agency.