US Bridges

SR1172 over Brown Marsh Swamp

Poor

Bladen County, North Carolina · 1.4 Mi.W. of Jct. SR1003 · Structure no. 000000000170192

Built
1984
41 years old
Condition
Poor
inspected November 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
70
2022 count
Owner
State
State Highway Agency

About this bridge

SR1172 over Brown Marsh Swamp is a steel culvert carrying SR1172 over Brown Marsh Swamp in Bladen County, North Carolina. It was built in 1984, so it is 41 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 70 vehicles a day, projected to reach 200 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1172
CrossesBrown Marsh Swamp
Location1.4 Mi.W. of Jct. SR1003
RouteState Highway 1172
CountyBladen County
StateNorth Carolina
Coordinates34.50691, -78.7529
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic200 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1172 over Brown Marsh Swamp built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR1172 over Brown Marsh Swamp in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does SR1172 over Brown Marsh Swamp carry?

About 70 vehicles per day (2022 count).

How long is SR1172 over Brown Marsh Swamp?

The structure is 22 ft (6.7 m) long with a longest span of 8 ft (2.4 m).

Who owns SR1172 over Brown Marsh Swamp?

It is owned by the State Highway Agency.