A lane of Interstate 77 in Rock Hill that has been closed since Wednesday night is expected to reopen early Friday morning, according to the state Department of Transportation.
A portion of the southbound lane of I-77 that is being repaired is on the overpass that crosses S.C. 901 at Exit 73.
Crews are working up and down I-77 to repair areas where weather and corrosion have caused holes to open in bridge decks, said Brad Trout, the resident maintenance engineer in the York County DOT office.
A hole formed in the bridge over S.C. 901 last weekend, according to a DOT statement, and a crew was able to temporarily patch it at that time. Since closing the lane Wednesday night, workers have been repairing and resurfacing 300 square feet of roadway to fix the hole and other “weak spots” in that location.
These repairs are the latest in an ongoing problem with some of the worst maintenance issues along I-77 dating back to July 2013, when four holes opened up on bridges.
That prompted a statewide check of bridges.
On a 2013 infrastructure “report card” compiled by the American Society of Civil Engineers, 11.3 percent of bridges in South Carolina were considered “structurally deficient” and 9.4 percent were considered “functionally obsolete,” meaning they no longer meet the standards required of bridges today.
Earlier this month, the state Transportation Commission approved a $60 billion, 25-year plan outlining the state’s transportation needs.
The plan projects that by 2040, the state will need to spend $70 billion on transportation – about $60 billion of that on roads.
The Department of Transportation says that with current revenue projections of only $28 billion, the state will be about $1.5 billion short each year.
Staff writer Bristow Marchant and The Associated Press contributed.