US Bridges

Is 664 Nbl Ramp B over Boat Harbor

Fair

Newport News city, Virginia · 1.0 MI FR Mmmbt · Structure no. 000000000020756

Built
1990
35 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
808 ft
6 main spans
Daily traffic
403
2022 count
Owner
State
State Highway Agency

About this bridge

Is 664 Nbl Ramp B over Boat Harbor is a steel continuous stringer/multi-beam or girder carrying Is 664 Nbl Ramp B over Boat Harbor in Newport News city, Virginia. It was built in 1990, so it is 35 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 403 vehicles a day, projected to reach 449 by 2042. The structure is 808 ft (246.3 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIs 664 Nbl Ramp B
CrossesBoat Harbor
Location1.0 MI FR Mmmbt
RouteInterstate 664
CountyNewport News city
StateVirginia
Coordinates36.97046, -76.41672
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating69.8 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6 (+2 approach)
Design loadHS 20 + Mod
Structure length808 ft (246.3 m)
Longest span120 ft (36.6 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic403 (2022)
Projected traffic449 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 664 Nbl Ramp B over Boat Harbor built?

It was built in 1990, making it 35 years old in 2025.

What condition is Is 664 Nbl Ramp B over Boat Harbor 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 November 2024.

How much traffic does Is 664 Nbl Ramp B over Boat Harbor carry?

About 403 vehicles per day (2022 count).

How long is Is 664 Nbl Ramp B over Boat Harbor?

The structure is 808 ft (246.3 m) long with a longest span of 120 ft (36.6 m) and a deck 34 ft wide.

Who owns Is 664 Nbl Ramp B over Boat Harbor?

It is owned by the State Highway Agency.