US Bridges

S-26-141 over Mitchell Swamp

Fair

Horry County, South Carolina · 5MI N Loris · Structure no. 000000000004340

Built
1964
61 years old, rebuilt 1999
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
75
2022 count
Owner
State
State Highway Agency

About this bridge

S-26-141 over Mitchell Swamp is a concrete slab carrying S-26-141 over Mitchell Swamp in Horry County, South Carolina. It was built in 1964 and reconstructed in 1999, so it is 61 years old, older than the South Carolina average of 48 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 75 vehicles a day, projected to reach 104 by 2042. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-26-141
CrossesMitchell Swamp
Location5MI N Loris
RouteState Highway 141
Coordinates34.11361, -78.88944
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating17.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic104 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$75,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-26-141 over Mitchell Swamp built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1999.

What condition is S-26-141 over Mitchell 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 July 2024.

How much traffic does S-26-141 over Mitchell Swamp carry?

About 75 vehicles per day (2022 count).

How long is S-26-141 over Mitchell Swamp?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-26-141 over Mitchell Swamp?

It is owned by the State Highway Agency.