US Bridges

SR1403 over Flat Swamp

Fair

Hertford County, North Carolina · 0.6MI. S. Jct. SR1408 · Structure no. 000000000910157

Built
2020
5 years old
Condition
Fair
inspected March 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
25 ft
3 main spans
Daily traffic
1,700
2022 count
Owner
State
State Highway Agency

About this bridge

SR1403 over Flat Swamp is a aluminum, wrought iron, or cast iron culvert carrying SR1403 over Flat Swamp in Hertford County, North Carolina. It was built in 2020, so it is 5 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 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 1,700 vehicles a day, roughly 6% of them trucks, projected to reach 3,400 by 2040. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR1403
CrossesFlat Swamp
Location0.6MI. S. Jct. SR1408
RouteState Highway 1403
CountyHertford County
StateNorth Carolina
Coordinates36.33181, -76.94122
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic3,400 by 2040
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SR1403 over Flat Swamp built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR1403 over Flat 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 March 2024.

How much traffic does SR1403 over Flat Swamp carry?

About 1,700 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SR1403 over Flat Swamp?

The structure is 25 ft (7.6 m) long with a longest span of 7 ft (2.1 m).

Who owns SR1403 over Flat Swamp?

It is owned by the State Highway Agency.