One of two lanes of Interstate 40 West near the Tennessee-North Carolina border has been reopened following a Jan. 31 rockslide between mile markers 450 and 451, the Tennessee Department of Transportation (TDOT) said.

Workers are stabilizing the slope, TDOT said. A 1,500-ton boulder was removed that could have fallen on the roadway. A second phase to shore up the mountainside is expected to begin in late March, the department said.

Traffic has resumed after a second rockslide east on I-40 in North Carolina was cleared away over the weekend, the North Carolina Department of Transportation said.