Discharge rates at multiple inflow streams into Falling Creek Reservoir (Vinton, Virginia, USA), Beaverdam Reservoir (Vinton, Virginia, USA), and Carvin's Cove Reservoir (Roanoke, Virginia) were measured manually using multiple methods from 2019-2021. Falling Creek Reservoir, Beaverdam Reservoir, and Carvin's Cove Reservoir are owned and operated by the Western Virginia Water Authority as drinking water sources for Roanoke, Virginia. The dataset consists of discharge rates calculated using one of four methods: propeller flowmate, salt injection, velocity float or bucket method. Data were collected weekly to monthly from February through October 2019 and Falling Creek and Beaverdam Reservoir, and approximately monthly at Falling Creek in 2020-2021, and approximately monthly at Carvin's Cove in 2021. References: Gordon, N.D., T.A. McMahon, and B.L. Finlayson. 2004. Stream Hydrology: an Introduction for Ecologists, 2nd edition. John Wiley & Sons, Inc., New York.