A portion of I-70 will be CLOSED in Geary Co. at J-Hill Rd (exit 299) overnight for bridge demo: EB & WB I-70 will close at 7pm Wed 9-24 and reopen by 7am Thurs 9-25. Traffic will be diverted up & down the ramps. Local traffic will be unable to access I-70 at exit 299 during the closure.