US Bridges

Ramp Off I-26 EB over Filbin Creek

Good

Charleston County, South Carolina · In N. Charleston · Structure no. 000000000008233

Built
1989
36 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
636 ft
5 main spans
Daily traffic
6,100
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp Off I-26 EB over Filbin Creek is a prestressed concrete stringer/multi-beam or girder carrying Ramp Off I-26 EB over Filbin Creek in Charleston County, South Carolina. It was built in 1989, so it is 36 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 6,100 vehicles a day, roughly 9% of them trucks, projected to reach 13,969 by 2043. The structure is 636 ft (193.9 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRamp Off I-26 EB
CrossesFilbin Creek
LocationIn N. Charleston
RouteInterstate 526
Coordinates32.88152, -80.02036
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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5 (+11 approach)
Design loadHS 20
Structure length636 ft (193.9 m)
Longest span61 ft (18.6 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,100 (2023)
Projected traffic13,969 by 2043
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ramp Off I-26 EB over Filbin Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ramp Off I-26 EB over Filbin Creek 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 July 2024.

How much traffic does Ramp Off I-26 EB over Filbin Creek carry?

About 6,100 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ramp Off I-26 EB over Filbin Creek?

The structure is 636 ft (193.9 m) long with a longest span of 61 ft (18.6 m) and a deck 29 ft wide.

Who owns Ramp Off I-26 EB over Filbin Creek?

It is owned by the State Highway Agency.