CARROLL—Wastewater flowed into a drainage ditch on the east side of Carroll Thursday afternoon after a bridge contractor struck a sewer main. The Iowa DNR says Dixon Construction and the city of Carroll acted quickly to plug the pipe and divert the untreated wastewater.

Carroll city officials estimate less than 500 gallons were released near the intersection of U.S. Highway 30 and N. Grant Road. An unknown amount of wastewater traveled 1.4 miles through a drainage ditch before reaching the Middle Raccoon River.

The city hopes to complete repairs today (Friday) once parts are available. DNR will continue to monitor the situation and consider appropriate enforcement action.