US Bridges

Is 464 Nbl over South Norfolk Basin

Fair

Chesapeake city, Virginia · 2.54 MI FR US 13 · Structure no. 000000000021967

Built
1980
45 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
384 ft
8 main spans
Daily traffic
24,234
2022 count
Owner
State
State Highway Agency

About this bridge

Is 464 Nbl over South Norfolk Basin is a prestressed concrete stringer/multi-beam or girder carrying Is 464 Nbl over South Norfolk Basin in Chesapeake city, Virginia. It was built in 1980, so it is 45 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 24,234 vehicles a day, projected to reach 30,685 by 2042. The structure is 384 ft (117 m) long and 54 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIs 464 Nbl
CrossesSouth Norfolk Basin
Location2.54 MI FR US 13
RouteInterstate 464
CountyChesapeake city
StateVirginia
Coordinates36.8087, -76.27947
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating75 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length384 ft (117 m)
Longest span48 ft (14.6 m)
Deck width54 ft (16.6 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,234 (2022)
Projected traffic30,685 by 2042
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 464 Nbl over South Norfolk Basin built?

It was built in 1980, making it 45 years old in 2025.

What condition is Is 464 Nbl over South Norfolk Basin 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 August 2024.

How much traffic does Is 464 Nbl over South Norfolk Basin carry?

About 24,234 vehicles per day (2022 count).

How long is Is 464 Nbl over South Norfolk Basin?

The structure is 384 ft (117 m) long with a longest span of 48 ft (14.6 m) and a deck 54 ft wide.

Who owns Is 464 Nbl over South Norfolk Basin?

It is owned by the State Highway Agency.