US Bridges

Is 664 Nbl over Commonwealth Railroad

Fair

Suffolk city, Virginia · 2.9 MI FR Int RTE 337 · Structure no. 000000000023099

Built
1991
34 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
397 ft
3 main spans
Daily traffic
40,739
2022 count
Owner
State
State Highway Agency

About this bridge

Is 664 Nbl over Commonwealth Railroad is a steel continuous stringer/multi-beam or girder carrying Is 664 Nbl over Commonwealth Railroad in Suffolk city, Virginia. It was built in 1991, so it is 34 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 40,739 vehicles a day, projected to reach 59,479 by 2045. The structure is 397 ft (121 m) long and 56 ft wide.

Location

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CarriesIs 664 Nbl
CrossesCommonwealth Railroad
Location2.9 MI FR Int RTE 337
RouteInterstate 664
CountySuffolk city
StateVirginia
Coordinates36.86182, -76.43118
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating63.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length397 ft (121 m)
Longest span160 ft (48.8 m)
Deck width56 ft (17 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,739 (2022)
Projected traffic59,479 by 2045
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 664 Nbl over Commonwealth Railroad built?

It was built in 1991, making it 34 years old in 2025.

What condition is Is 664 Nbl over Commonwealth Railroad 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 September 2023.

How much traffic does Is 664 Nbl over Commonwealth Railroad carry?

About 40,739 vehicles per day (2022 count).

How long is Is 664 Nbl over Commonwealth Railroad?

The structure is 397 ft (121 m) long with a longest span of 160 ft (48.8 m) and a deck 56 ft wide.

Who owns Is 664 Nbl over Commonwealth Railroad?

It is owned by the State Highway Agency.