MOUNTAIN HOME, Ark. – The Corps of Engineers will close both lanes of Highway 178 across Bull Shoals Dam from 8 a.m. until 7 p.m. Oct. 23 and Oct. 24, weather permitting, to install equipment needed to refurbish the tainter gates on Bull Shoals Dam. However, one lane will remain closed from 7 p.m. until 8 a.m. each day.