US Bridges

I-526 EB over I-26 & S-1600 & RR

Good

Charleston County, South Carolina · In N. Charleston · Structure no. 000000000008323

Built
1990
35 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,665 ft
5 main spans
Daily traffic
41,550
2023 count
Owner
State
State Highway Agency

About this bridge

I-526 EB over I-26 & S-1600 & RR is a steel continuous stringer/multi-beam or girder carrying I-526 EB over I-26 & S-1600 & RR in Charleston County, South Carolina. It was built in 1990, so it is 35 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 41,550 vehicles a day, roughly 12% of them trucks, projected to reach 63,987 by 2043. The structure is 2,665 ft (812.3 m) long and 43 ft wide.

CarriesI-526 EB
CrossesI-26 & S-1600 & RR
LocationIn N. Charleston
RouteInterstate 526
Coordinates32.88321, -80.01968
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating30 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+29 approach)
Design loadHS 20
Structure length2,665 ft (812.3 m)
Longest span125 ft (38.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck42 ft (12.8 m)

Traffic and service

Average daily traffic41,550 (2023)
Projected traffic63,987 by 2043
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$7.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-526 EB over I-26 & S-1600 & RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is I-526 EB over I-26 & S-1600 & RR 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 December 2024.

How much traffic does I-526 EB over I-26 & S-1600 & RR carry?

About 41,550 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is I-526 EB over I-26 & S-1600 & RR?

The structure is 2,665 ft (812.3 m) long with a longest span of 125 ft (38.1 m) and a deck 43 ft wide.

Who owns I-526 EB over I-26 & S-1600 & RR?

It is owned by the State Highway Agency.