US Bridges

Ramp on I-77 NB over I-26/RAMP On/Off I-26

Fair

Lexington County, South Carolina · 5 MI SW of Columbia · Structure no. 000000000008019

Built
1986
39 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
807 ft
8 main spans
Daily traffic
4,650
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp on I-77 NB over I-26/RAMP On/Off I-26 is a steel continuous stringer/multi-beam or girder carrying Ramp on I-77 NB over I-26/RAMP On/Off I-26 in Lexington County, South Carolina. It was built in 1986, so it is 39 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,650 vehicles a day, roughly 9% of them trucks, projected to reach 9,812 by 2043. The structure is 807 ft (246 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRamp on I-77 NB
CrossesI-26/RAMP On/Off I-26
Location5 MI SW of Columbia
RouteInterstate 77
Coordinates33.92664, -81.06915
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length807 ft (246 m)
Longest span154 ft (46.9 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,650 (2023)
Projected traffic9,812 by 2043
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp on I-77 NB over I-26/RAMP On/Off I-26 built?

It was built in 1986, making it 39 years old in 2025.

What condition is Ramp on I-77 NB over I-26/RAMP On/Off I-26 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Ramp on I-77 NB over I-26/RAMP On/Off I-26 carry?

About 4,650 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ramp on I-77 NB over I-26/RAMP On/Off I-26?

The structure is 807 ft (246 m) long with a longest span of 154 ft (46.9 m) and a deck 43 ft wide.

Who owns Ramp on I-77 NB over I-26/RAMP On/Off I-26?

It is owned by the State Highway Agency.