We are providing monitoring assistance related to the construction of off-channel aquatic habitat (such as chutes) along the Missouri River. This construction is currently done using a hydraulic dredge to excavate floodplain material. The dredge slurry is discharged into the main channel of the Missouri River. The potential impacts on nutrient and sediment levels in the river from this practice have created some concern from bordering states charged with reducing nutrient loading to the Gulf of Mexico. Our primary objective is to assess the downstream impact of hydraulic dredging discharge to the Missouri River.