Town of Brookhaven, Landing Road - Coastal Resiliency Improvements

Hydraulic and Hydrologic Analyses

Our extensive experience providing hydraulic and hydrologic analyses in support of stormwater, stream, and site improvement projects for municipalities, industrial clients, architectural firms and private clients includes:

  • Drainage studies.
  • Storm water quantity analyses.
  • Quality management.
  • Site work.
  • Civil engineering technical services.

Award Winning Design

D&B has won awards for drainage improvements and flood mitigation projects. Many of the projects have seamlessly blended storm water management solutions into surrounding areas and, in many instances, actually become focal points of the design.


We provide modeling (HEC-RAS/HMS, HydroCAD, SWMM), flow rate determination and design/sizing of storm sewer infrastructure including:

  • Culverts.
  • Outfall structures.
  • Storm sewer systems.
  • Preparation of required stormwater pollution prevention plans.
  • Tidal/freshwater wetlands permitting.
  • Dredging.
  • Habitat restoration.

Stormwater Quantity and Quality Improvements:

  • Inline stormwater quality units.
  • Constructed wetlands.
  • Sedimentation basins.
  • Sand filters.
  • Rain gardens.
  • Bio-retention areas.
Hydraulic and Hydrologic Analyses Project Profiles:

Village of Valley Stream Hendrickson Pond Park, Mill Pond Park and Village Green Park Water Quality Improvement Project