Renovation and addition to an existing single story building. Multiple additions increased the building footprint by 4,500 sf. The existing structure consisted of wood trusses spanning between masonry and wood load bearing walls. The new structural framing consists of structural steel, wood trusses, and wood bearing walls. D&K provided structural design and construction administration services. Project documents were developed using building information modeling technology. The estimated construction value of the project is $2.7 million.
Jewett Brook Watershed Assessment and Plan
At the request of the City of Laconia and under the authority of the Corps of Engineers, the D&K Water Resources team performed studies of Jewett Brook to determine the feasibility of constructing flood damage reduction measures. The D&K team prepared a Watershed Management Plan documenting existing conditions in the Jewett Brook watershed and identifying several restoration methods. D&K identified specific solutions to alleviate flooding during less than 100-year events, including enlarging the conveyance area to improve the channel’s carrying capacity and dredging portions of the channel. Services included:
Fluvial geomorphic assessment using Vermont Protocols
Hydrologic analysis
Prepared HEC-RAS model of stream channel
Identified and evaluated non-structural restoration measures
Field survey
Preliminary Watershed Plan
Jay Peak Resort Sky Haus
D&K provided structural, mechanical, electrical, and plumbing design engineering services for renovation of the tram docking building at the top of Jay Peak (elevation 3,900 ft). This building, originally built in 1968, was redesigned to house a 120-seat cafeteria. Design services included a new ventilation system, new plumbing including a new potable water system with UV filtration, a new emergency generator, complete electrical upgrades, and structural modifications. Challenges included the reuse of the existing 14,000 and 10,000 gallon water reservoirs originally built into the mountain face, heating requirements for a mountain-top wind-blown facility, and electrical upgrades and emergency generator installation. D&K provided design engineering services for the following:
Mechanical, electrical, and plumbing design for 120-seat restaurant
New kitchen mechanical and plumbing services
Potable water system with UV filtration
Electrical upgrades
Structural reinforcement of existing water reservoirs
HVAC for highly exposed facility
Intersection Improvement Projects
DuBois & King transportation and traffic engineers developed scoping studies and final design documents for two Municipally Managed State Aid Highway Projects. Both projects involve developing design alternatives for problematic intersections experiencing increasing congestion from growth. Alternatives considered for the intersections included the addition of turning lanes, a traffic signal, and/or a roundabout.
The intersection of NH Route 3A and Dunklee Road serves an expanding industrial and commercial area. The intersection is congested, especially during peak hours, but is currently unsignalized. To improve levels of service and safety at this intersection, the design included adding a new traffic signal and turning lanes.
At the Bow Town Center intersection (Bow Center Road/Logging Hill Road and Knox Road/White Rocks Hill Road) a community recreational and civic facility is being planned. The Bow schools are also nearby. The intersection will have to safely accommodate pedestrians and bicyclists in addition to motor vehicles. The selected alternative for this intersection is the design of a roundabout to improve traffic operations, calm traffic, and improve safety for all modes of transportation.
DuBois & King is providing full engineering services, including survey, alternatives analyses, preliminary and final design, permitting, traffic design, right-of-way documentation, and preparation of bid documents.
Husky Injection Molding Manufacturing Campus
Multidiscipline services for the fast-track design and construction of a world class, 685-acre manufacturing campus. D&K was responsible for all civil/site services. Converted environmentally/archeological sensitive agricultural land into a large environmentally friendly industrial site. D&K provided planning, permitting, design, and construction phase services for the site, utilities, and roadway access. The project required design of an innovative, rapid-build bridge to replace an at-grade railroad crossing. Services included:
Conceptual plans
Utility and communication design
Energy source evaluation
Stormwater management
Field survey and mapping
Resource identification
Wetland delineation
Federal, State, and local permitting (Vermont Act 250)
Roadway, bridge, and parking design
Master Plan for future expansion