• Paul Revere Way, Concord, MA - Preliminary and final site design services for a fifteen unit
  single family residential development in Concord including roadway, utilities, site grading
  and retaining walls. Due to high groundwater elevations and extensive wetlands on the site,
  stormwater management which met the performance standards in the Wetlands Protection Act
  was a challenge to the designers. Low Impact Development (LID) techniques including rain
  gardens were utilized to facilitate groundwater recharge throughout the site.
  Client: Tocio Development Corp.
• Lawrence Gateway Park, Lawrence, MA - The Lawrence Gateway Park is proposed on a 2.8 acre parcel owned by the City of Lawrence, which is the former site of the Oxford Mills. The site is bordered by the Spicket River on the north and east and by Canal Street on the south. There is an open raceway which opens to the river and runs through the middle of the site. The park design focuses on the raceway, which is representative of the industrial heritage of the North Canal Historic District. Surrounding this raceway will be new walls of concrete and a pedestrian bridge which would support public walkways that surround the basin and encourage viewing and historic interpretation. Chappell Engineering, as a subconsultant to Shadley Associates is responsible for survey, structural design, low impact stormwater management design and wetlands permitting. Client: Shadley Associates, PC
• Texaco/Dunkin Donuts, Natick, MA - Survey, construction drawings and permitting for a the replacement of an existing service station with a service station/convenience store/Dunkin Donuts drive thru facility on Route 9 in Natick, MA.  Chappell Engineering was responsible for all site design including parking, circulation, access/egress, ADA compliance and stormwater management. Client: Viewpoint, Inc.
• Marketplace at Chestnut Ridge, Franklin, MA - Chappell Engineering Associates provided final design services for this nine acre commercial/retail development including the parking lot, access roadway, utilities, stormwater management and retaining walls.  Low Impact Development (LID) techniques were used to facilitate groundwater recharge.  The project also required wetlands replication and permitting, and modifications to two signalized intersections on East Central Street (Route 140).  Client: Gracewood Development Corp.
• Walden Street Condominiums, Concord, MA - Final site design and permitting for a four acre residential development. Chappell Engineering Associates was able to overcome the combined challenges of high groundwater levels and location of 95% of the site within the 100-yr. floodplain to successfully permit the project. Low Impact Development (LID) techniques were utilized to mitigate stormwater impacts and distribute groundwater recharge. Floodplain compensation was successfully attained through careful placement of units and parking areas. Client: West Concord Housing Trust

Structural Engineering

• Bailey Lane Bridge over Parker River, Georgetown, MA - This project is in a sensitive environmental area along the Parker River which is a habitat for the Blanding Turtle, a rare and endangered species. Chappell Engineering prepared a preliminary design report with several alternatives with projected costs and environmental permitting requirements. Because of frequent flooding, partially due to downstream beaver activity, the profile of Bailey Lane was raised about two feet, and the selected alternative was to leave the existing culvert in place and span over it, thus removing the loads. The new structure will consist of pre-cast concrete deck beams on integral abutments and piles. Wetlands replication was needed to compensate for the resulting slope impacts. In addition, because of the raising of the profile, approximately 19,000 c.f. of flood plain compensation was required. Working closely with the Georgetown Conservation Commission and MassWildlife, Chappell Engineering designed an off-site wetlands replication/floodplain compensation basin on adjacent Town land, contiguous to the Parker River. Construction cost is approximately $600,000. Client: Town of Georgetown, MA
• Rehabilitation of Exchange Street Bridge, Athol, MA - Preliminary design, final design, environmental permitting and construction inspection for the rehabilitation and painting of a 150 foot span through truss bridge over the Millers River. Chappell Engineering performed preliminary studies with several alternatives for rehabilitation ranging from miscellaneous repairs to capacity upgrades to HS20 and HS25 truck loadings. The selected design was a full upgrade to HS25 loading which included replacing the deck, repairing damaged steel members and strengthening stringers and floor beams Construction cost is approximately $1,200,000. Client: Town of Athol, MA
• I-95/Dedham Street Interchange and Dedham Street Corridor Widening, Canton/Westwood, MA - This project includes upgrading the I-95/Dedham Street Interchange and widening Dedham Street from two to four lanes as traffic mitigation for the proposed Westwood Station mixed use development project. Chappell Engineering Associates is responsible for the rehabilitation/widening design of the Dedham Street Bridge over MBTA/AMTRAK and the design of eight retaining walls along Dedham Street and the new interchange ramps. Construction cost is approximately $8,000,000. Client: Traffic Solutions, LLC
• Retrofit of Dickerson, Morgantown and Chalk Point Generating Stations, MD - This $1.1 billion Design/Build project consisted of modernizing and installing air quality control systems at three coal-fired generating stations operated by the Mirant Corp. Chappell Engineering Associates’ role in the project was to design foundations and containment systems for 42 outdoor oil-filled transformers, some of which required masonry firewalls. Chappell Engineering also coordinated the bus duct support designs at all three sites and provided a structural peer review for the design of an absorber tower. Client: The Shaw Group
• The Residences at Brook Hill, Milton, MA - Structural steel and foundation design for a four story 41,000 square foot building located at 36 Central Avenue in Milton. Building includes 18 commercial/residential units with a parking garage on the basement level. Client: South Coastal Development Group, LLC
• Industrial Facilities Throughout New England – Structural engineering for upgrading existing and construction of new rock crushing, bituminous concrete and cement concrete plants at numerous locations throughout New England. Design included garages, storage buildings, containment and foundations for tank farms, footings for silos and equipment, retaining walls and steel framed towers supporting conveyors, bins, silos and other vibrating and crushing equipment. Client: ETG/Engineering Technologies Group, Inc.
• NStar Transmission Towers, Various Locations, New England - Chappell Engineering Associates provides structural engineering for wireless telecommunications facilities on existing NStar power transmission structures. Services include structural analysis and design for evaluating and reinforcing structures and attaching wireless equipment. Structural analysis utilizes Power Line Systems and SAG10 software. Clients: Verizon, TMobile, Metro PCS and Nextel.

Wireless Telecommunications Design

Land Surveying

• NStar Electric and Gas, Westwood, MA - Topographic survey, boundary survey, wetlands delineation and mapping for various NSTAR substation facilities under an open ended agreement. Client: NSTAR Electric and Gas
• Survey of Various Streets (20 Locations), Cambridge, MA - Approximately four miles of topographic, utility and right-of-way survey for roadway/sidewalk improvement projects. Locations include Putnam Ave., Green Street, Sixth Ave., Sellers Ave., Massachusetts Ave., Rogers Street, Essex Street, William Street and Concord Avenue among others. Client: CDM, Inc.
• Athletic Fields, Newton/Boston MA - Topographic and property line survey for 12 acre, 10 acre and 7 acre athletic facilities. Client: Weston and Sampson Engineers, Inc.
  
• Downtown Franklin Infrastructure Improvements Survey and Right-of-Way Plans, Franklin, MA - Topographic, utility and right-of-way survey for infrastructure improvement project in Downtown Franklin within the area bordered by East Central Street, Union Street, Main Street and Pleasant Street. Project includes numerous land acquisitions and construction easements. Client: Weston and Sampson Engineers, Inc.
  
• Pleasant Street Survey and Right-of-Way Plans, Brockton, MA – Approximately 6000 linear feet of topographic, utility and right-of-way survey including plans and descriptions for 18 permanent land acquisitions and over 100 temporary construction easements. Client: CDM, Inc.
  
• Condominium Development, Biddeford, MA – Topographic and property line survey for approximately nine acre site on the Saco River. Includes delineation of river boundary using mean high water.
  

Transportation Engineering

Coatings and Corrosion Control