US Bridges

Nbl Route 81 over New River & RT605

Good

Montgomery County, Virginia · 0.00PUL CO;0.00 Mont CO · Structure no. 000000000029354

Built
2022
3 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,683 ft
7 main spans
Daily traffic
20,204
2022 count
Owner
State
State Highway Agency

About this bridge

Nbl Route 81 over New River & RT605 is a steel continuous stringer/multi-beam or girder carrying Nbl Route 81 over New River & RT605 in Montgomery County, Virginia. It was built in 2022, so it is 3 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 20,204 vehicles a day, roughly 1% of them trucks, projected to reach 24,312 by 2042. The structure is 1,683 ft (513.1 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNbl Route 81
CrossesNew River & RT605
Location0.00PUL CO;0.00 Mont CO
RouteInterstate 81
Coordinates37.08864, -80.58103
Functional classRural Principal Arterial - Interstate

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating52 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length1,683 ft (513.1 m)
Longest span270 ft (82.3 m)
Deck width61 ft (18.7 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,204 (2022)
Projected traffic24,312 by 2042
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nbl Route 81 over New River & RT605 built?

It was built in 2022, making it 3 years old in 2025.

What condition is Nbl Route 81 over New River & RT605 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 February 2024.

How much traffic does Nbl Route 81 over New River & RT605 carry?

About 20,204 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Nbl Route 81 over New River & RT605?

The structure is 1,683 ft (513.1 m) long with a longest span of 270 ft (82.3 m) and a deck 61 ft wide.

Who owns Nbl Route 81 over New River & RT605?

It is owned by the State Highway Agency.