US Bridges

I-664 Nbl over US17 & SR164 Ebl Ramp

Fair

Suffolk city, Virginia · 3.2 MI FR SR337 · Structure no. 000000000023095

Built
1991
34 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
244 ft
3 main spans
Daily traffic
28,819
2022 count
Owner
State
State Highway Agency

About this bridge

I-664 Nbl over US17 & SR164 Ebl Ramp is a steel continuous stringer/multi-beam or girder carrying I-664 Nbl over US17 & SR164 Ebl Ramp 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 28,819 vehicles a day, projected to reach 42,076 by 2042. The structure is 244 ft (74.4 m) long and 44 ft wide.

CarriesI-664 Nbl
CrossesUS17 & SR164 Ebl Ramp
Location3.2 MI FR SR337
RouteInterstate 664
Coordinates36.86567, -76.4321
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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating63.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length244 ft (74.4 m)
Longest span87 ft (26.5 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,819 (2022)
Projected traffic42,076 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 I-664 Nbl over US17 & SR164 Ebl Ramp built?

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

What condition is I-664 Nbl over US17 & SR164 Ebl Ramp 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 July 2024.

How much traffic does I-664 Nbl over US17 & SR164 Ebl Ramp carry?

About 28,819 vehicles per day (2022 count).

How long is I-664 Nbl over US17 & SR164 Ebl Ramp?

The structure is 244 ft (74.4 m) long with a longest span of 87 ft (26.5 m) and a deck 44 ft wide.

Who owns I-664 Nbl over US17 & SR164 Ebl Ramp?

It is owned by the State Highway Agency.