Structure 9973 · Horry County, SC

L-26-834 over Intracoastal Waterway

Carries L-26-834 over Intracoastal Waterway, Myrtle Beach.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT598 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

598 ft end to end: about 1.7 football fields. 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 swing bridge (drawn closed).

Built1938rebuilt 2000
Length598.1 ft182.3 m
Daily traffic6,100counted 2023
Last inspectedNovember 2024every 12 months

Location

StateSouth Carolina
CountyHorry
LocationMyrtle Beach
CarriesL-26-834
CrossesIntracoastal Waterway
Coordinates33.80300, -78.74143

Physical Characteristics

MaterialSteel
DesignMovable - Swing
Total Length598.1 ft (182.3 m)
Max Span329.4 ft (100.4 m)
Deck Width40.0 ft (12.2 m)
Deck Area2224.1 sq m
Main Spans1
Year Built1938 (reconstructed 2000)

Traffic

Avg Daily Traffic6,100 (2023)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number000000000009973

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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