• Water
  • Wastewater
  • Stormwater
  • Civil/Construction
  • Infrastructure management

Underwood Engineers

Civil and Environmental Engineering

  • Home
  • About Us
    • The Underwood Difference
    • History
    • Personnel
    • Testimonials
  • What We Do
    • Water
    • Wastewater
    • Stormwater
    • Civil/Construction
    • Infrastructure management
  • News & Info
    • Downloads
    • Recent Bids
    • Links
  • Portfolio
  • Client Login
  • Careers
  • Contact Us

Portfolio

water

  • Dover, NH
    Dover, NH
    Lowell Avenue Water Treatment Plant
  • Dover, NH
    Dover, NH
    Calderwood Chemical Treatment Facility
  • Durham, NH
    Durham, NH
    Spruce Hole Artificial Recharge Water System
  • Dover, NH
    Dover, NH
    Sixth Street Water Standpipe
  • Exeter, NH
    Exeter, NH
    Flood study and Finished Water Pump Improvements
  • Merrimack Village District, NH
    Merrimack Village District, NH
    Iron and Manganese Water Treatment Facility
  • Exeter, NH
    Exeter, NH
    Water Storage Tank
  • Portsmouth, NH
    Portsmouth, NH
    4M GPD Water Treatment Facility
  • Greenville, NH
    Greenville, NH
    Water Treatment Facility Improvements
  • Raymond, NH
    Raymond, NH
    Water Treatment Plant
  • Bristol, NH
    Bristol, NH
    Hillside Booster Pumping Station Improvements
  • Bristol, NH
    Bristol, NH
    Storm Center Well Pump Station Improvements
  • Dover, NH
    Dover, NH
    North End Booster Pumping Station
  • Peterborough, NH
    Peterborough, NH
    Water Booster Pumping Station
  • Derry, NH
    Derry, NH
    Water Booster Station
  • Conway Village, NH
    Conway Village, NH
    Water Storage Tank
  • Hinsdale, NH
    Hinsdale, NH
    Water Storage Tank
  • Peterborough, NH
    Peterborough, NH
    Water Storage Tank
  • Greenville, NH
    Greenville, NH
    Water Treatment Plant

wastewater

  • Manchester, NH
    Manchester, NH
    Primary Clarifier and Gravity Thickener Upgrades
  • Eliot, ME
    Eliot, ME
    Main Street Wastewater Pumping Station
  • Epping, NH
    Epping, NH
    Wastewater Treatment Facility Improvements
  • Hooksett, NH
    Hooksett, NH
    Wastewater Treatment Facility Improvements
  • Kennebunk Sewer District, ME
    Kennebunk Sewer District, ME
    0.8 MGD Wastewater Treatment Facility Design
  • Greenville, NH
    Greenville, NH
    Wastewater Treatment Plant Evaluation
  • Milford, NH
    Milford, NH
    Wastewater Treatment Facility Disinfection Building Improvements
  • Manchester, NH
    Manchester, NH
    Wastewater Treatment Plant Primary Clarifier and Gravity Thickener Upgrade
  • Hanover, NH
    Hanover, NH
    Wastewater Treatment Facility Liquid Train Improvements
  • Lebanon, NH
    Lebanon, NH
    Wastewater Treatment Facility Clarifier Improvements
  • Lebanon, NH
    Lebanon, NH
    Wastewater Treatment Facility Laboratory
  • Pease, NH
    Pease, NH
    Wastewater Treatment Facility Sequencing Batch Reactor
  • Crotched Mountain Rehabilitation Facility, Greenfield, NH
    Crotched Mountain Rehabilitation Facility, Greenfield, NH
    Innovative Drip Dispersal System for Groundwater Disposal
  • Crotched Mountain Rehabilitation Facility, Greenfield, NH
    Crotched Mountain Rehabilitation Facility, Greenfield, NH
    Wastewater treatment System
  • Greenfield, NH
    Greenfield, NH
    Design and Installation of Wastewater Disposal Facility
  • Portsmouth, NH
    Portsmouth, NH
    Pease Wastewater Treatment Facility
  • Berwick, ME
    Berwick, ME
    Wastewater Treatment Facility Improvements and Sludge Storage Landfill Closure
  • Portsmouth, NH
    Portsmouth, NH
    Peirce Island Wastewater Treatment Facility Headworks Evaluation and Outfall Improvements
  • Somersworth, NH
    Somersworth, NH
    Biological Nutrient Removal (BNR) Wastewater Treatment Facility Improvements.
  • Wolfeboro, NH
    Wolfeboro, NH
    Effluent Disposal Facility Improvements (Storage Pond and Spray Irrigation)
  • Sterling, MA
    Sterling, MA
    Wastewater Improvements
  • Swanzey, NH
    Swanzey, NH
    Wastewater Pumping Station and Headworks Improvements

stormwater

  • Dover, NH
    Dover, NH
    Stormwater Control Treatment Swale along Spaulding Turnpike
  • Dover, NH
    Dover, NH
    Silver Street Rain Garden Stormwater Treatment
  • Portsmouth, NH
    Portsmouth, NH
    Stormwater Separation Project
  • Greenland, NH
    Greenland, NH
    Village Area Improvements and Rain Gardens
  • Northwood, NH
    Northwood, NH
    Harmony Road Culvert
  • Keene, NH
    Keene, NH
    Porous Concrete Sidewalks and Pavement
  • Keene, NH
    Keene, NH
    Rain Gardens
  • Swanzey, NH
    Swanzey, NH
    Safford Drive
  • Belmont, NH
    Belmont, NH
    Structural Culvert Improvements
  • Wolfeboro, NH
    Wolfeboro, NH
    Bean Park Parking Lot Rain Garden

civil/construction

  • Greenland, NH
    Greenland, NH
    Willowbrook Avenue Reconstruction
  • Wolfeboro, NH
    Wolfeboro, NH
    Port Wedeln Road Improvements
  • Boscawen, NH
    Boscawen, NH
    Forest Lane Reconstruction
  • Belmont, NH
    Belmont, NH
    Ladd Hill Road Reconstruction
  • Salem, NH
    Salem, NH
    South Broadway Sewer, Water and Bridge Improvements
  • Milton Mills, NH
    Milton Mills, NH
    Road Reconstruction
  • Exeter, NH
    Exeter, NH
    Sewer Line Replacement
  • Swanzey, NH
    Swanzey, NH
    Industrial Road Design and Construction
  • Portsmouth, NH
    Portsmouth, NH
    Street and Sidewalk Reconstruction
  • Greenville, NH
    Greenville, NH
    Water and Sewer Improvements at Greenville Estates Village District
  • Northwood, NH
    Northwood, NH
    Gasoline Storage Tank Installation
  • Newmarket, NH
    Newmarket, NH
    Underground Utilities
  • Swanzey, NH
    Swanzey, NH
    Retaining Wall
  • Antrim, NH
    Antrim, NH
    Sidewalk Improvements
  • Northwood, NH
    Northwood, NH
    Town Beach Improvements
  • Swanzey, NH
    Swanzey, NH
    Force Main Directional Drill
  • Dover, NH
    Dover, NH
    Silver Street Sewer Manhole Replacement
  • Keene, NH
    Keene, NH
    Washington Street Streetscape
  • Keene, NH
    Keene, NH
    Infrastructure Improvements
  • Keene, NH
    Keene, NH
    Court Street and Washington Street Reconstruction
  • Keene, NH
    Keene, NH
    Water and Sewer Line Replacement
  • Portsmouth,NH
    Portsmouth,NH
    Sewer and Water Improvements
  • Swanzey, NH
    Swanzey, NH
    Sewer and Water Installation around Wilson Pond
  • Greenfield,NH
    Greenfield,NH
    Municipal Improvements (Sidewalks, Fire Station and Town Offices)
  • Newmarket, NH
    Newmarket, NH
    NH Route 108 Reconstruction
Civil and Environmental Engineering

PORTSMOUTH, NH
25 VAUGHAN MALL
PH 603.436.6192 FX 603.431.4733

CONCORD, NH
99 NORTH STATE STREET
PH 603.230.9898 FX 603.230.9899