Below is a summary of our services and experience. As consulting engineers, we often tackle complex projects that require expertise in multiple engineering and design disciplines. Sherwood CD is often invited to join other design teams to contribute our expertise. Likewise, when the scope of a project demands it, we can assemble the right team of professionals, drawing on hundreds of projects and 17-years worth of working relationships in the Greater Boston area.

Site Design

Full design services for every phase of land development and redevelopment, from feasibility and planning studies through construction
  • Site grading
  • Roadway design
  • Individual lots & subdivisions
  • Retaining structures
  • Utilities & infrastructure

We pride ourselves on the ability to develop solutions for even the most challenging sites. We have significant experience with the working constraints of urban sites.

Stormwater Management

Our stormwater management services address everything from localized flooding issues, to preparation of comprehensive stormwater management plans for large multi-building, multi-phase developments to comply with local, State, and Federal regulations.
  • BMP selection & design for runoff rate mitigation and water quality enhancement
  • Low Impact Development (LID)
  • Groundwater recharge
  • Custom & proprietary pollutant treatment systems for Total Maximum Daily Load (TMDL) compliance
  • Stormwater system Operation & Maintenance Plans
  • Stormwater & wetland related permits such as notice of intent for wetland encroachments & replications
  • EPA NPDES Construction General Permit and Stormwater Management Pollution Prevention Plan (SWPPP)
  • EPA NPDES General Permit for Residually Designated Discharges from properties with more than 2 acres of impervious surface
  • Technical reviews for Town Planning Boards and Conservation Commissions

Hydrology and Hydraulics

  • Hydrologic modeling for stormwater management using TR-20 and other industry-standard methodolgies and computer models
  • Open channel hydraulic modeling of rivers & streams using SWMM or HEC-RAS
  • Reach modifications
  • FEMA flood insurace studies
  • MHD bridge opening designs
  • Streambed erosion
  • Hydrologic & Hydraulic Studies for dams
  • Massachusetts DCR Phase I Dam Inspections and preparation of Emergency Action Plan
  • Massachusetts DCR Dam Hazard Class Change, and Dam Removal Permit
  • Dam break analysis
  • Modeling of closed stormwater & sanitary systems with complex physical characteristics and operating parameters such as variable tailwater, surcharging, backflows, pump stations, combined flows, and structures (e.g. weirs, siphons, etc.).

Construction Administration

  • Construction-phase inspections
  • Shop drawing reviews & RFI's
  • Attend regular construction meetings
  • On-site design changes in response to unanticipated actual conditions
  • Photographic progress record


As MCA and ISA Certified Arborist, we provide:
  • Consultation on tree condition
  • Written evaluation & recommendation
  • Construction protection plans & details
  • Identification & protection of specimen trees
  • Tree inventory for large sites & campuses (species, size, condition, mapping)
  • Development of inventory databases for tree care management
  • Planting plans
  • Site and project-specific species selections
  • Tree-related consulting to Architects and Landscape Architects

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