It's going to be harder to get in and out of Alton the rest of this month.

All but one lane of the Clark Bridge in each direction will be closed daily through the end of June, for maintenance work.

Rush hour traffic is being taken into consideration. All southbound lanes will be open between 6 a.m. and 9 a.m. All northbound lanes will be open between 3 p.m. and 6 p.m.