Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Hubbard River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Hubbard River, the highest being situated at an altitude of ft, the .

The Hubbard River is a tributary of the Farmington River, located in western Massachusetts and Connecticut. The river flows for approximately 22 miles before merging with the Farmington River in Connecticut. The Hubbard River has a rich history dating back to the 1600s, when it was used for transportation and fishing by Native American tribes. Today, the river is primarily used for recreation, with activities such as fishing, kayaking, and hiking being popular. The river also provides water for agricultural irrigation and hydroelectric power, with the Goodwin Dam and Reservoir being the largest source of hydroelectric power on the river. Other dams and reservoirs include the Saville Dam and Reservoir and the Colebrook River Lake Dam and Reservoir.