US Bridges

SR1158 over Monie Swamp

FairPosted for load

Columbus County, North Carolina · 0.8 Mi.W. of Jct. SR1159 · Structure no. 000000000470325

Built
1958
67 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
70 ft
4 main spans
Daily traffic
160
2017 count
Owner
State
State Highway Agency

About this bridge

SR1158 over Monie Swamp is a wood or timber stringer/multi-beam or girder carrying SR1158 over Monie Swamp in Columbus County, North Carolina. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 160 vehicles a day, roughly 6% of them trucks, projected to reach 320 by 2040. The structure is 70 ft (21.3 m) long and 27 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesSR1158
CrossesMonie Swamp
Location0.8 Mi.W. of Jct. SR1159
RouteState Highway 1158
CountyColumbus County
StateNorth Carolina
Coordinates34.17353, -78.70356
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
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 protection9 ExcellentNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating21.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span17 ft (5.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2017)
Projected traffic320 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 SR1158 over Monie Swamp built?

It was built in 1958, making it 67 years old in 2025.

What condition is SR1158 over Monie 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 September 2023.

How much traffic does SR1158 over Monie Swamp carry?

About 160 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is SR1158 over Monie Swamp?

The structure is 70 ft (21.3 m) long with a longest span of 17 ft (5.1 m) and a deck 27 ft wide.

Who owns SR1158 over Monie Swamp?

It is owned by the State Highway Agency.