The Neshobe River crosses through the heart of downtown Brandon, and the historic stone masonry bridge carrying Central Street/US 7 and numerous utilities had a history of substantially inadequate hydraulic capacity. As a demonstration of this issue, the town opened the front and rear doors of the adjacent town offices during a large storm event…
The City of Montpelier, in cooperation with the Federal Transit Authority and the Vermont Agency of Transportation, was redeveloping a brownfield site for a transit center, parking, and multiuse path on the banks of the Winooski River. The project required stabilization of a 135-ft-long by 27-ft-high section of river embankment. D&K provided geotechnical, civil, and…
Heavy rainfall and substantial snowmelt from a storm event combined with insufficient drainage systems to wash out 2,800 LF of a vital roadway crossing a mountain. The steep and winding road serves approximately 1,400 vehicles per day and connects VT 100 and VT 12. The Town of Rochester applied for and received FHWA-ER funding to…
Since their construction, Burlington’s largest parking garages had deteriorated, and the city’s operational requirements had evolved. The city also sought to reduce the frequent maintenance activities required to operate the facilities. D&K’s Resident Project Representative provided full-time construction observation and coordination with the city, design engineer, contractors, and subcontractors for improvements to two parking garages:…
Seeking a modernized and more capacious space for its administrative operations, the Taunton Municipal Airport advanced the construction of a 5,000-SF office building straddling a perimeter fence. D&K provided construction contract administration and observation and, as the Owner’s Project Manager, coordinated closely with the Contractor, Architect, Airport Operations, the Airport Commission, and the Massachusetts Department…
Two dams in a park owned by a community association were damaged by storm flows. The lower dam was breached and required design alternatives for its removal; the upper dam had to be evaluated for repairs. D&K reviewed the structural elements of both dams, the retaining wall, and the stream character upstream and downstream. Our…
The 40-year-old wastewater treatment facility, originally designed for a 20-year service life, was past due for a total treatment process change and facility upgrade. The project objectives included: utilize a state-of-the-art treatment process, design capacity for nitrogen removal, consider operational efficiencies and long-term operating costs, address issues with the location in a floodplain, and develop…
Framed by a public park and a residential area and carrying a city street, Robin Hood Dam was reclassified by the State of New Hampshire as a high-hazard dam, and its spillway did not have the capacity to meet New Hampshire Dam Safety requirements. The City of Keene engaged D&K to evaluate the dam, develop…
The Upper Wilson Pond Dam is a small, high-hazard, earth embankment dam impounding a recreation pond. Recently found to be in poor condition, the dam is owned by the Town of Swanzey, and the pond is bounded by homes and properties located within the City of Keene. D&K’s project team completed a study that evaluated…