US Bridges

Ramp on I-26 EB over US 21 and US 321

Good

Lexington County, South Carolina · 4 MI S of W Columbia · Structure no. 000000000007908

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
296 ft
4 main spans
Daily traffic
1,250
2022 count
Owner
State
State Highway Agency

About this bridge

Ramp on I-26 EB over US 21 and US 321 is a steel stringer/multi-beam or girder carrying Ramp on I-26 EB over US 21 and US 321 in Lexington County, South Carolina. It was built in 1985, so it is 40 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 1,250 vehicles a day, roughly 7% of them trucks, projected to reach 3,262 by 2042. The structure is 296 ft (90.2 m) long and 30 ft wide.

CarriesRamp on I-26 EB
CrossesUS 21 and US 321
Location4 MI S of W Columbia
RouteInterstate 26
Coordinates33.93264, -81.07682
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.
Last inspectionOctober 2023
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 alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating57.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length296 ft (90.2 m)
Longest span84 ft (25.6 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2022)
Projected traffic3,262 by 2042
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp on I-26 EB over US 21 and US 321 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ramp on I-26 EB over US 21 and US 321 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 October 2023.

How much traffic does Ramp on I-26 EB over US 21 and US 321 carry?

About 1,250 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Ramp on I-26 EB over US 21 and US 321?

The structure is 296 ft (90.2 m) long with a longest span of 84 ft (25.6 m) and a deck 30 ft wide.

Who owns Ramp on I-26 EB over US 21 and US 321?

It is owned by the State Highway Agency.