Structure 8524 · Charleston County, SC

Ramp Off I-526 EB over Rr Csxt

Carries Ramp Off I-526 EB over Rr Csxt, In N. Charleston.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,576 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

2,576 ft end to end, longest span 110 ft: about 7.2 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 multi-beam bridge.

Built199234 years old
Length2575.8 ft785.1 m
Daily traffic6,700counted 2023
Last inspectedJuly 2024every 24 months

Location

StateSouth Carolina
CountyCharleston
LocationIn N. Charleston
CarriesRamp Off I-526 EB
CrossesRr Csxt
Coordinates32.89283, -79.97839

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2575.8 ft (785.1 m)
Max Span109.9 ft (33.5 m)
Deck Width25.3 ft (7.7 m)
Deck Area6045.3 sq m
Main Spans8
Year Built1992

Traffic

Avg Daily Traffic6,700 (2023)
Truck Traffic9%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000008524

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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