This child page contains the requisite folder structure along with the model input and output data used in calibrating two Hydrologic Engineering Center Hydrologic Modeling System (HEC-HMS) models during the calibration period of the study detailed in the associated Scientific Investigations Report "Comparison of Storm Runoff Models for a Small Watershed in an Urban Metropolitan Area, Albuquerque, New Mexico" (Shephard and Douglas-Mankin, 2020). One model uses a curve-number based loss method approach, and the other model uses an initial and constant infiltration rate loss method. Each model was used to simulate storm runoff in the Hahn Arroyo Watershed, an urbanized watershed with concrete lined channels in the northeastern quadrant of Albuquerque that exhibits flashy, monsoonal-driven storm runoff events. The two separate models are described in detail in the associated SIR.