All lanes of Interstate 70 have reopened after a water main break near Jennings Station Road caused a large sink hole to form Wednesday afternoon.
Traffic on westbound I-70 was down to one lane through rush hour and much of the evening.
Missouri American Water crews worked well into the night to fill the hole, re-pave the road and reroute water to local customers.
Water Company Spokesperson Ann Dettmer says the 12 inch line broke because it was old and overused. Dettmer says as the ground dries up, it doesn't provide as much support.
Engineers will consider whether to replace the main or reroute water service around it permanently.