US Bridges

SR1621 over Fisher Swamp

Fair

Craven County, North Carolina · 1.2 Mi.E. of JCT.SR1629 · Structure no. 000000000490025

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Culvert
Steel
Length
57 ft
4 main spans
Daily traffic
720
2018 count
Owner
State
State Highway Agency

About this bridge

SR1621 over Fisher Swamp is a steel culvert carrying SR1621 over Fisher Swamp in Craven County, North Carolina. It was built in 1986, so it is 39 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 6 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 720 vehicles a day, roughly 6% of them trucks, projected to reach 1,440 by 2040. The structure is 57 ft (17.3 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesSR1621
CrossesFisher Swamp
Location1.2 Mi.E. of JCT.SR1629
RouteState Highway 1621
Coordinates35.24431, -77.06133
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length57 ft (17.3 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2018)
Projected traffic1,440 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SR1621 over Fisher Swamp built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR1621 over Fisher Swamp 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 January 2025.

How much traffic does SR1621 over Fisher Swamp carry?

About 720 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is SR1621 over Fisher Swamp?

The structure is 57 ft (17.3 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1621 over Fisher Swamp?

It is owned by the State Highway Agency.