US Bridges

I-95 Nbl over Southwest Swamp

Fair

Sussex County, Virginia · 0.16 to Route 40 · Structure no. 000000000018257

Built
1979
46 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
153 ft
2 main spans
Daily traffic
19,937
2022 count
Owner
State
State Highway Agency

About this bridge

I-95 Nbl over Southwest Swamp is a steel stringer/multi-beam or girder carrying I-95 Nbl over Southwest Swamp in Sussex County, Virginia. It was built in 1979, so it is 46 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 19,937 vehicles a day, roughly 1% of them trucks, projected to reach 23,862 by 2045. The structure is 153 ft (46.6 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesI-95 Nbl
CrossesSouthwest Swamp
Location0.16 to Route 40
RouteInterstate 95
CountySussex County
StateVirginia
Coordinates36.94157, -77.39242
Functional classRural 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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating93 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length153 ft (46.6 m)
Longest span80 ft (24.4 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,937 (2022)
Projected traffic23,862 by 2045
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-95 Nbl over Southwest Swamp built?

It was built in 1979, making it 46 years old in 2025.

What condition is I-95 Nbl over Southwest Swamp 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 April 2023.

How much traffic does I-95 Nbl over Southwest Swamp carry?

About 19,937 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-95 Nbl over Southwest Swamp?

The structure is 153 ft (46.6 m) long with a longest span of 80 ft (24.4 m) and a deck 44 ft wide.

Who owns I-95 Nbl over Southwest Swamp?

It is owned by the State Highway Agency.