Civil Engineering Services


Successful projects require more from an engineering firm than just technical design expertise. At Acorn Engineering, Inc. (Acorn) our project managers and engineers focus on getting the job done. We know you need someone you can rely on when taking your infrastructure or site development project from vision to completion. Acorn will take the time to understand your requirements and mobilize the best talent to meet your needs.

Acorn will work with your team on the below services to ensure your project runs smoothly and efficiently:

Site Development Design
Utility Design
Stormwater Management
Erosion & Sedimentation Control
Feasibility Studies (For Residential, Commercial, and Municipal Projects)


A permit is required with almost every construction-related project. Acorn has successfully permitted hundreds of projects throughout Maine. Project permitting may require submittal of applications, attendance at hearings and meetings and inspections for one or more of the following organizations:

Local Government

Site Plan
Shoreland Zoning

State of Maine Agencies

Maine Department of Environmental Protection (MDEP)
Site Location of Development (SLDA)
Natural Resource Protection Act (NRPA)
Permit By Rule (PBR)
Maine Department of Marine Resources (DMR)
Maine State Department of Conservation, Bureau of Parks and Lands
Maine Department of Transportation (MDOT)

Federal Agencies

US Army Corps of Engineers (USACE)
US Environmental Protection Agency (EPA)
Clean Water Act (CWA)
National Pollutant Discharge Elimination System (NPDES)
Municipal Separate Storm Sewer Systems (MS4s)
Storm Water Pollution Prevention Plan (SWPPP)


Acorn specializes in the design of resilient stormwater systems for new developments and existing sites. Our engineers and landscape architect are on the forefront of water quality and quantity design. Our experience provides us with the tools to specifically adapt industry technologies and products to meet your projects challenges in the most cost-effective manner. Typical stormwater projects include the following:

New Construction
Retrofit and Upgrades of Existing Stormwater Infrastructure
Stormwater Resiliency Visualizations
Adaptive Planting Designs
Stormwater Pollution Prevention Plans (SWPPP)
Low Impact Development (LID)
Water Quality & Quantity Upgrades
Stormwater Credit Assessments
Impaired Watershed Studies
Environmental Stewardship
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