College Road between 11th and 12th avenues will stay closed until Feb. 18, despite estimates the construction would be completed Monday.

Project manager Cihangir Calis cited several unforeseen setbacks for the delay, including the discovery of an abandoned section of utility tunnel.

The road construction is connected to the renovation of the south campus residence halls. The total cost of the south campus dorm renovation project is $171 million, said Calis.

“Due to the scope and complexity of the South High-Rises Renovation and Addition project, construction contingency dollars were allocated to cover any unforeseen conditions,” Calis said.

The sidewalks on the east side of College Road will be open while sidewalks on the west side will stay closed. The only open entrance to Drinko Hall will be from 11th Avenue.

Projected completion of South Campus High-Rise Renovation is Autumn Quarter 2013.