US Bridges

NC133 over Intracoastal Waterway

Fair

Brunswick County, North Carolina · 0.9 MI N. of JCT SR1104 · Structure no. 000000000190014

Built
1972
53 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
4,249 ft
37 main spans
Daily traffic
15,000
2021 count
Owner
State
State Highway Agency

About this bridge

NC133 over Intracoastal Waterway is a prestressed concrete stringer/multi-beam or girder carrying NC133 over Intracoastal Waterway in Brunswick County, North Carolina. It was built in 1972, so it is 53 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 15,000 vehicles a day, roughly 7% of them trucks, projected to reach 30,000 by 2040. The structure is 4,249 ft (1,295.1 m) long and 42 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

CarriesNC133
CrossesIntracoastal Waterway
Location0.9 MI N. of JCT SR1104
RouteState Highway 133
Coordinates33.91943, -78.07264
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 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 rating72 US tons
Inventory rating26.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans37 (+28 approach)
Design loadHS 20 + Mod
Structure length4,249 ft (1,295.1 m)
Longest span132 ft (40.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2021)
Projected traffic30,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was NC133 over Intracoastal Waterway built?

It was built in 1972, making it 53 years old in 2025.

What condition is NC133 over Intracoastal Waterway 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 October 2023.

How much traffic does NC133 over Intracoastal Waterway carry?

About 15,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is NC133 over Intracoastal Waterway?

The structure is 4,249 ft (1,295.1 m) long with a longest span of 132 ft (40.2 m) and a deck 42 ft wide.

Who owns NC133 over Intracoastal Waterway?

It is owned by the State Highway Agency.