US Bridges

SR1001 over Toisnot Swamp

Good

Nash County, North Carolina · 0.4 MI S. JCT SR1937 · Structure no. 000000001270066

Built
2010
15 years old
Condition
Good
inspected March 2022
Type
Slab
Prestressed Concrete
Length
110 ft
3 main spans
Daily traffic
1,700
2018 count
Owner
State
State Highway Agency

About this bridge

SR1001 over Toisnot Swamp is a prestressed concrete slab carrying SR1001 over Toisnot Swamp in Nash County, North Carolina. It was built in 2010, so it is 15 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,700 vehicles a day, roughly 6% of them trucks, projected to reach 3,400 by 2040. The structure is 110 ft (33.5 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR1001
CrossesToisnot Swamp
Location0.4 MI S. JCT SR1937
RouteState Highway 1001
CountyNash County
StateNorth Carolina
Coordinates35.82245, -77.9961
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.9 US tons
Inventory rating58 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length110 ft (33.5 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2018)
Projected traffic3,400 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 SR1001 over Toisnot Swamp built?

It was built in 2010, making it 15 years old in 2025.

What condition is SR1001 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 2022.

How much traffic does SR1001 over Toisnot Swamp carry?

About 1,700 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is SR1001 over Toisnot Swamp?

The structure is 110 ft (33.5 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns SR1001 over Toisnot Swamp?

It is owned by the State Highway Agency.