US Bridges

S-26-351 over Myrtle Swash

PoorPosted for load

Horry County, South Carolina · 5th Ave Myrtle Beach · Structure no. 000000000004813

Built
1966
59 years old
Condition
Poor
inspected June 2024
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
750
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-351 over Myrtle Swash is a concrete slab carrying S-26-351 over Myrtle Swash in Horry County, South Carolina. It was built in 1966, so it is 59 years old, older than the South Carolina average of 48 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. Its operating status is: posted for load restriction.

It carries about 750 vehicles a day, roughly 5% of them trucks, projected to reach 960 by 2043. The structure is 30 ft (9.1 m) long and 28 ft wide.

CarriesS-26-351
CrossesMyrtle Swash
Location5th Ave Myrtle Beach
RouteState Highway 351
Coordinates33.68518, -78.89741
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 10
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2023)
Projected traffic960 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$236,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-26-351 over Myrtle Swash built?

It was built in 1966, making it 59 years old in 2025.

What condition is S-26-351 over Myrtle Swash 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 June 2024.

How much traffic does S-26-351 over Myrtle Swash carry?

About 750 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-26-351 over Myrtle Swash?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-26-351 over Myrtle Swash?

It is owned by the State Highway Agency.