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US Army Corps of Engineers Flood Control

 

Planning and engineering services related to flood control, hydrology and hydraulics, watershed planning, bioengineering, cost estimating, design, plans and specifications, environmental assessments, streambank stabilization, and floodplain management. Projects included:

Green Brook Flood Control, Middlesex, NJ
South River Feasibility Study, Raritan River Basin, NJ
Mill Brook Flood Control, Highland Park, NJ
Moyer Creek Flood Study/Design, Frankfort, NY
Fulmer Creek Flood Study/Design, German Flatts, NY
Steele Creek Flood Study/Design, German Flatts, NY
Saw Mill River Flood Control, Elmsford-Greenburg, NY
Winooski River Ice Jam Study, Montpelier, VT
Olympus Pool, Proctor, VT
Rutland City Reservoir Dam, Rutland, VT
Reynolds Reservoir, Proctor, VT
Kaaterskill River, Catskill, NY
Diamond Mills Dam, Saugerties, NY
Wrightsville Dam and Reservoir, Washington County, VT
Missisquoi River Emergency Streambank Stabilization, Richford, VT
Otter Creek River Basin, VT
Trout River, Montgomery Center, VT
Black Falls Brook, Montgomery Village, VT
Floodplain Delineation, Hardwick, Woodbury, and Warren, VT
Hudson River Emergency Riverbank Restoration Study, NY

US 2/302 Roundabout Construction Inspection and Testing Services

 

Provided construction inspection and testing services for a new high volume traffic roundabout at the junction of US Routes 302 and 2. Project included the roundabout and 3,700 ft of roadway approach improvements. Key components of the project include two railroad crossing improvements (signals, grade crossing, rail seals, etc) and new sidewalks, lighting, traffic signage, landscaping, storm drain work, pavement markings, and other incidental work. D&K was responsible for resident inspection including field measurements, traffic monitoring, onsite meetings, change orders, and records of construction activities. Materials testing followed the requirements of the VTrans Materials Sampling Manual. D&K coordinated closely with the VTrans Materials & Research Section to coordinate and assure a cooperative Independent Assurance Program for testing, proper submission of mix designs, and other related functions.

Upper Damon Reservoir Dam Reconstruction

 

Upper Damon Reservoir is a privately owned, 55-acre impoundment with a drainage area of approximately 10.8 square miles. The dam is classified as a High Hazard structure, which was originally constructed over 100 years ago. The preexisting dam consisted of a mortared stone masonry spillway approximately 135 ft long and 15 ft high. The primary concern with the preexisting dam was the structural stability of the stone spillway and the inadequate freeboard of and uncontrolled seepage through the earth embankment. D&K designed the replacement structure using Roller Compacted Concrete (RCC) for its strength, safety, and durability. The design made use of on-site material to manufacture/produce the RCC at the project site over a 24-hour-a-day/7-day-a-week operation with local contractors. RCC is low maintenance, with an expected service life of 75 years or more. The project was the first use of RCC for an active spillway in the State of New Hampshire, and received an Engineering Excellence Award in the Water Resources category from the American Council of Engineering Companies (ACEC-NH). Services include:

Engineering safety inspection
Preparation of EAP
Identification of deficiencies
Hydrologic/hydraulic analysis
Structural assessment
Geotechnical assessment
Breach analysis
Evaluation of repair alternatives
Cost analysis
Preparation of an engineering report
Permitting
Final Plans and Specifications
Construction phase services

United States Postal Service North Burlington Post Office

 

As the prime consultant for multiple retainer contracts with the USPS over a twenty-year period, D&K provided professional services for repairs, alterations, and new construction for USPS facilities through the northeast. For the North Burlington USPS facility, DuBois & King led an A/E team to adapt an existing 7,800-sf leased retail site into a post office facility. The project was developed and designed in accordance with USPS Design Standards using the SSBD documentation program. A new 560-sf dock and public entry feature was added. The structure and roof of the existing building was retained while the building envelope was replaced. Value engineering was an integral part of the design process and the D&K team’s USPS experience allowed the project to meet the building owner’s requirements, as well as the cost objectives of the USPS.

The mechanical design included two packaged roof top units with electric cooling and gas fired heat for the post office work space and one roof top unit for the customer area. Performed detailed heating/cooling/ventilating load calculations and heat transmission values of the exterior envelope; HVAC zoning of respective areas and select equipment; the layout of the equipment room; design of duct distribution, diffusers, and routing of branch piping; and physical plant equipment selection.

Designed site improvements and higher roof structure. Performed structural analysis to confirm existing structural members/systems capability for new loading conditions. Structural design of additions to existing building included canopies over walking area and enclosed loading dock.

Union Village Dam Removal

 

DuBois & King provided planning, design, and construction observation services for dam removal and restoration of a section of the Branch River. The Union Village Dam was a 15-ft-high, 103-ft-long high hazard dam that impounded approximately two acres. NHDES identified the 1861 concrete and masonry dam as deficient in a number of areas, and removal of the dam was the preferred option by the owners. Removal eliminated a hazardous dam that posed a public safety risk and a hydraulic and aquatic organism passage (AOP) barrier from the Branch River. Restoring the river to a more natural state is anticipated to establish an expanded habitat for certain aquatic species. Professional services included:

Site inspection and evaluation
Wetland delineation
Site survey
Plans and specifications
Construction cost estimates
Public outreach program
Utility coordination
Emergency Action Plan (EAP)
Permitting
Coordination with NHDES, NH F&G, and local entities
Construction observation
Grant funding assistance