US Bridges

SR1321 over Wet Ash Swamp

Good

Brunswick County, North Carolina · 0.9 Mi. S. Jct. NC130 · Structure no. 000000000190081

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
127 ft
3 main spans
Daily traffic
2,800
2016 count
Owner
State
State Highway Agency

About this bridge

SR1321 over Wet Ash Swamp is a prestressed concrete slab carrying SR1321 over Wet Ash Swamp in Brunswick County, North Carolina. It was built in 2003, so it is 22 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 2,800 vehicles a day, roughly 6% of them trucks, projected to reach 5,600 by 2040. The structure is 127 ft (38.7 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSR1321
CrossesWet Ash Swamp
Location0.9 Mi. S. Jct. NC130
RouteState Highway 1321
Coordinates34.04598, -78.52274
Functional classRural Local

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length127 ft (38.7 m)
Longest span54 ft (16.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2016)
Projected traffic5,600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 SR1321 over Wet Ash Swamp built?

It was built in 2003, making it 22 years old in 2025.

What condition is SR1321 over Wet Ash 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 June 2023.

How much traffic does SR1321 over Wet Ash Swamp carry?

About 2,800 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SR1321 over Wet Ash Swamp?

The structure is 127 ft (38.7 m) long with a longest span of 54 ft (16.4 m) and a deck 33 ft wide.

Who owns SR1321 over Wet Ash Swamp?

It is owned by the State Highway Agency.