- Construction Date: November 2019 to March 2020
- Location: Andover MA
- Category: Dam Rehabilitation
- Harold Parker State Park :
NSI was awarded a contract to assist with the rehabilitation of a 100 year old recreational and water storage dam in the DCR Harold Parker State Park. The contract required over 500’ feet of 35’sheet piles in the main dam structure and 175’ of 15’ steel sheets in an adjacent dike as a cutoff walls. In a second phase, NSI constructed a 30x34x30 15’ deep cofferdam to construct the new low flow discharge structure. NSI performed the installations in close concert with the general contractor and the DCR design engineer. The construction was completed under approval of the Mass Division of Dam Safety and the Department of Conservation & Recreation.