The Army Corps of Engineers built the Springfield flood control dam between 1957–60. The dam holds back waters to protect the downstream towns of North Springfield and Springfield from floods. The dam certainly did it’s job during hurricane Irene as towns surrounding Springfield were flooded, but Springfield was not.
Flooding used to be a common occurrence on the Black River. The flood of 1927 released thousands of gallons of water into the Black River, destroying homes and businesses and causing hundreds of thousands of dollars in damage. More details about the Black River and it’s history.
The water level at the Springfield Vermont dam is going down. The photo below shows the level one day after hurricane Irene and again, five days after the hurricane.