Landfill extraction during highway expansion resulted in construction of artificial wetlands in Pembina, Barnes, Nelson and Ramsey Counties, North Dakota. Twenty of these constructed wetlands were studied from 1981 to 1984 to determine 1) waterfowl pair, nesting and brood use, 2) marsh, shore and upland bird use, and 3) abundance and diversity of plants and aquatic invertebrates. Comparisons were made between data collected on constructed ponds with six natural basins nearby.