US Bridges

I95N over Toisnot Swamp

Good

Nash County, North Carolina · 1.5 Mi. S. Jct. NC97 · Structure no. 000000001270009

Built
1977
48 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
18,000
2020 count
Owner
State
State Highway Agency

About this bridge

I95N over Toisnot Swamp is a prestressed concrete stringer/multi-beam or girder carrying I95N over Toisnot Swamp in Nash County, North Carolina. It was built in 1977, so it is 48 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 18,000 vehicles a day, roughly 23% of them trucks, projected to reach 36,000 by 2040. The structure is 156 ft (47.5 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI95N
CrossesToisnot Swamp
Location1.5 Mi. S. Jct. NC97
RouteInterstate 95
Coordinates35.81504, -77.98559
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length156 ft (47.5 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2020)
Projected traffic36,000 by 2040
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
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 I95N over Toisnot Swamp built?

It was built in 1977, making it 48 years old in 2025.

What condition is I95N over Toisnot Swamp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does I95N over Toisnot Swamp carry?

About 18,000 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I95N over Toisnot Swamp?

The structure is 156 ft (47.5 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns I95N over Toisnot Swamp?

It is owned by the State Highway Agency.