US Bridges

SR1550 over Black River

Fair

Bladen County, North Carolina · 0.5 MI E JCT NC210 · Structure no. 000000000170085

Built
1971
54 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
271 ft
4 main spans
Daily traffic
1,000
2021 count
Owner
State
State Highway Agency

About this bridge

SR1550 over Black River is a prestressed concrete continuous stringer/multi-beam or girder carrying SR1550 over Black River in Bladen County, North Carolina. It was built in 1971, so it is 54 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 1,000 vehicles a day, roughly 6% of them trucks, projected to reach 2,000 by 2040. The structure is 271 ft (82.6 m) long and 36 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesSR1550
CrossesBlack River
Location0.5 MI E JCT NC210
RouteState Highway 1550
Coordinates34.5534, -78.25458
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating93.9 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length271 ft (82.6 m)
Longest span66 ft (20.1 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2021)
Projected traffic2,000 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 SR1550 over Black River built?

It was built in 1971, making it 54 years old in 2025.

What condition is SR1550 over Black 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 July 2023.

How much traffic does SR1550 over Black River carry?

About 1,000 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1550 over Black River?

The structure is 271 ft (82.6 m) long with a longest span of 66 ft (20.1 m) and a deck 36 ft wide.

Who owns SR1550 over Black River?

It is owned by the State Highway Agency.