US Bridges

SR1117 over Thunder Swamp

Good

Wayne County, North Carolina · 0.2 Mi. N. Jct. NC55 · Structure no. 000000001910264

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Slab
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
440
2016 count
Owner
State
State Highway Agency

About this bridge

SR1117 over Thunder Swamp is a prestressed concrete slab carrying SR1117 over Thunder Swamp in Wayne County, North Carolina. It was built in 2020, so it is 5 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 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 440 vehicles a day, roughly 6% of them trucks, projected to reach 880 by 2040. The structure is 72 ft (21.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1117
CrossesThunder Swamp
Location0.2 Mi. N. Jct. NC55
RouteState Highway 1117
Coordinates35.20839, -78.10857
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating61.9 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length72 ft (21.9 m)
Longest span69 ft (21 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic440 (2016)
Projected traffic880 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SR1117 over Thunder Swamp built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR1117 over Thunder 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 December 2024.

How much traffic does SR1117 over Thunder Swamp carry?

About 440 vehicles per day (2016 count), of which roughly 6% are trucks.

How long is SR1117 over Thunder Swamp?

The structure is 72 ft (21.9 m) long with a longest span of 69 ft (21 m) and a deck 33 ft wide.

Who owns SR1117 over Thunder Swamp?

It is owned by the State Highway Agency.