Tata & Howard provided engineering services for design, preparation of a hydrologic and hydraulic report, two easement maps, design submittals for DOT review, construction administration, and resident observation for the rehabilitation of the Great Brook Stormwater Culvert under Cherry Street in Waterbury, CT. The project provided for the replacement of about 65 linear feet of the existing structurally deficient top to the Great Brook Stormwater Culvert under Cherry Street and adjacent private properties.
The existing steel beams, corrugated metal arches, and bituminous concrete or concrete slabs forming the top of the culvert were removed and precast concrete beams were placed on elastomeric bearing pads to form the replacement culvert top. Additionally, about 50 linear feet of the existing eroded cobblestone bottom were removed to a minimum depth of 12 inches and replaced with reinforced cast in place concrete.
Further, approximately 32 linear feet of undermined walls (16 linear feet on the west side and 16 linear feet on the east side) were excavated, with cast in place concrete placed below the existing culvert masonry walls. The interior culvert masonry walls within the project limits were also repointed. The work required the reconstruction of 30 feet of Cherry Street, the adjacent sidewalks, and approximately 750 square feet of a private gravel parking lot property. During construction, a water control system capable of conveying normal flow capacity of the Great Brook Stormwater Culvert at Cherry Street was maintained.