D&K provides slope and structural engineering, hydrogeology, hydrology and hydraulics, fluvial geomorphology, planting plans, permitting, and construction phase services for slopes, retaining walls, earth-supported structures (foundations, culverts, bridges, and dams), and other earth retaining systems. We design slope protection projects to address river channel-induced erosion, local erosion, and acute erosion from the top of embankments….
To support continued and upgraded use of its site for light industrial purposes, Chroma Tech needed to stabilize an adjacent slope. The aim of the project was to improve site stability and minimize erosion and stormwater pollution directly behind the facility. D&K evaluated the site and worked with regulators, the client, and a grant funding…
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…
To develop a safer and dedicated cyclist and pedestrian-focused path from downtown to Gallison Hill Road, the City of Montpelier chose to develop a paved, largely off-street pathway, which shared a substantial portion of its alignment with a local railroad. Weaving through a largely urban area, the project creates an active transportation and recreation right…
A 200-ft-long by 20-ft-high town roadway embankment was destabilized by scour from the White River from spring snow melt and a storm event. The Town of Bethel applied for and received FEMA funding and engaged D&K to evaluate, survey, design, and provide permitting assistance and construction phase services for repairs to the slope and the…
The Perkins Cove Seawall consists of a 650-ft-long timber wall constructed in 1950, later supplemented with Class VII stone blocks placed in front of the timbers (seaside). A 30-ft section of the seawall failed as a result of an ocean storm. The town sought FEMA assistance to make emergency repairs. D&K’s civil, structural, and geotechnical…
The Town of Bow needed to replace a 20-ft, rigid-frame culvert with inadequate scour protection, foundations, and geometry. The roadway serves heavy truck traffic and intersects with NH 3A, a state highway frequently used to bypass a tolled section of I-93 near the Interstate I-89 intersection with I-93. D&K designed a replacement structure to address…
The City of Montpelier needed to replace a 12-ft-high by 70-ft-long retaining wall located within several feet of a home and serving a low-volume residential road. D&K provided survey, civil, geotechnical, and structural engineering and permitting to replace the metal bin wall with a modular concrete block wall system. We also provided bid and construction…