COE - Rock Island IL No description specified. 1-1 (1 Record) Documents COE - Polk County - Des Moines - Cencr - 199840 - New Interceptor Sanitary Sewer Approx. 4,500 Ft. N. of Euclid Ave. on Des Moines River - Sec. 21 - T79N,R24W (1991)