A portion of Riverside Road will be closed for work beginning tomorrow.

The work on two existing box culverts will take about a month and a half to complete. The Washington County Engineer’s Office explains the work will improve the safety of the road. The total project cost is $281,613.07 and it’s being done by Iowa Bridge and Culvert of Washington. The road will be closed between 135th Street and about a quarter mile south of 130th Street, south of Riverside.