US Bridges

S-26-136 over Marlowe Branch

Good

Horry County, South Carolina · 6 MI S Conway · Structure no. 000000000008873

Built
1995
30 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
450
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-136 over Marlowe Branch is a concrete continuous slab carrying S-26-136 over Marlowe Branch in Horry County, South Carolina. It was built in 1995, so it is 30 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 450 vehicles a day, roughly 5% of them trucks, projected to reach 576 by 2043. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-26-136
CrossesMarlowe Branch
Location6 MI S Conway
RouteState Highway 136
Coordinates33.73481, -79.06824
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic576 by 2043
Trucks5%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-26-136 over Marlowe Branch built?

It was built in 1995, making it 30 years old in 2025.

What condition is S-26-136 over Marlowe Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does S-26-136 over Marlowe Branch carry?

About 450 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-26-136 over Marlowe Branch?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns S-26-136 over Marlowe Branch?

It is owned by the State Highway Agency.