I-26/RAMP OFF I-26
I-26/RAMP OFF I-26 in 4 MI NW Of Columbia, Richland County, South Carolina received a condition grade of B (61/100). Built in 1958, the bridge carries 131K vehicles daily on I-26/RAMP OFF I-26 over RR Csxt.
I-26/RAMP OFF I-26 carries a B on the BridgeSafety Condition Score with 61/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1958 and is now 68 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. I-26/RAMP OFF I-26 carries an average daily traffic count of 130,700 vehicles, with 6 lane(s) crossing RR Csxt. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I-26/RAMP OFF I-26 is a 68-year-old bridge located 4 MI NW Of Columbia in Richland County, South Carolina. The bridge carries I-26/RAMP OFF I-26 over RR Csxt with 6 traffic lanes, handling approximately 131K vehicles per day. Built in 1958 and reconstructed in 1986, the structure spans 50.3 meters.
The bridge received a Condition Grade of B (61/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 5/9 (fair), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-26/RAMP OFF I-26 has a Condition Score of 61/100 (Grade B). Its deck is rated 7/9, superstructure 5/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-26/RAMP OFF I-26 was built in 1958 and reconstructed in 1986, making it 68 years old. The average bridge age in the United States is 48 years.
I-26/RAMP OFF I-26 carries approximately 131K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 50.3 meters long and located on I-26/RAMP OFF I-26 in 4 MI NW Of Columbia, Richland County, South Carolina.
No, I-26/RAMP OFF I-26 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I-26/RAMP OFF I-26 is located 4 MI NW Of Columbia in Richland County, South Carolina. The bridge carries I-26/RAMP OFF I-26 over RR Csxt. Its coordinates are 34.026342, -81.102300. It is maintained by State Highway Agency.
I-26/RAMP OFF I-26 carries I-26/RAMP OFF I-26 over RR Csxt. The bridge is 50.3 meters long and was built in 1958, with reconstruction in 1986.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.