Structure 9883 · Horry County, SC

S-26-137 over Socastee Swamp

Carries S-26-137 over Socastee Swamp, 3 Mi N. Of Myrtle Beach.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT150 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

150 ft end to end, longest span 30 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built200422 years old
Length149.9 ft45.7 m
Daily traffic250counted 2023
Last inspectedJuly 2023every 24 months

Location

StateSouth Carolina
CountyHorry
Location3 Mi N. Of Myrtle Beach
CarriesS-26-137
CrossesSocastee Swamp
Coordinates33.73344, -78.94203

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length149.9 ft (45.7 m)
Max Span29.9 ft (9.1 m)
Deck Width113.8 ft (34.7 m)
Deck Area1585.8 sq m
Main Spans5
Year Built2004

Traffic

Avg Daily Traffic250 (2023)
Truck Traffic5%
Lanes On Bridge7

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000009883

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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