US Bridges

US17S over Old Ford Swamp

Good

Beaufort County, North Carolina · 0.1 Mi. S. NC171 · Structure no. 000000000130359

Built
2012
13 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
149 ft
3 main spans
Daily traffic
4,450
2022 count
Owner
State
State Highway Agency

About this bridge

US17S over Old Ford Swamp is a prestressed concrete continuous stringer/multi-beam or girder carrying US17S over Old Ford Swamp in Beaufort County, North Carolina. It was built in 2012, so it is 13 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 4,450 vehicles a day, roughly 14% of them trucks, projected to reach 8,900 by 2040. The structure is 149 ft (45.4 m) long and 39 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesUS17S
CrossesOld Ford Swamp
Location0.1 Mi. S. NC171
RouteU.S. Route 17
Coordinates35.63147, -77.06336
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 rating99 US tons
Inventory rating59 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length149 ft (45.4 m)
Longest span49 ft (14.9 m)
Deck width39 ft (11.9 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,450 (2022)
Projected traffic8,900 by 2040
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 US17S over Old Ford Swamp built?

It was built in 2012, making it 13 years old in 2025.

What condition is US17S over Old Ford 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 July 2024.

How much traffic does US17S over Old Ford Swamp carry?

About 4,450 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US17S over Old Ford Swamp?

The structure is 149 ft (45.4 m) long with a longest span of 49 ft (14.9 m) and a deck 39 ft wide.

Who owns US17S over Old Ford Swamp?

It is owned by the State Highway Agency.