US Bridges

US17 US76 US421 over Cape Fear River

Fair

New Hanover County, North Carolina · 0.35 Mi.E. Jct. US133 · Structure no. 000000001290013

Built
1969
56 years old
Condition
Fair
inspected December 2023
Type
Movable - Lift
Steel
Length
3,033 ft
1 main span
Daily traffic
69,000
2021 count
Owner
State
State Highway Agency

About this bridge

US17 US76 US421 over Cape Fear River is a steel movable - lift carrying US17 US76 US421 over Cape Fear River in New Hanover County, North Carolina. It was built in 1969, so it is 56 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 69,000 vehicles a day, roughly 12% of them trucks, projected to reach 138,000 by 2040. The structure is 3,033 ft (924.4 m) long and 61 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesUS17 US76 US421
CrossesCape Fear River
Location0.35 Mi.E. Jct. US133
RouteU.S. Route 17
Coordinates34.22856, -77.95494
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.9 US tons
Inventory rating33 US tons

Structure

Structure typeMovable - Lift
MaterialSteel
DeckOpen grating
Main spans1 (+32 approach)
Design loadHS 20 + Mod
Structure length3,033 ft (924.4 m)
Longest span408 ft (124.3 m)
Deck width61 ft (18.7 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic69,000 (2021)
Projected traffic138,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US17 US76 US421 over Cape Fear River built?

It was built in 1969, making it 56 years old in 2025.

What condition is US17 US76 US421 over Cape Fear River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does US17 US76 US421 over Cape Fear River carry?

About 69,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US17 US76 US421 over Cape Fear River?

The structure is 3,033 ft (924.4 m) long with a longest span of 408 ft (124.3 m) and a deck 61 ft wide.

Who owns US17 US76 US421 over Cape Fear River?

It is owned by the State Highway Agency.