Parts of the SR 247 roadway buckled in the Landers earthquake of 1992 , and of the highway was closed while repairs took place . In 2001 , Caltrans indicated that most of the highway was considered " maintain only " until 2020 , except for the portions in Yucca Valley and Barstow , which were to be widened to six lanes
Landers earthquake
1992 Landers earthquake
California State Route 247