Residential Site Plans
An engineering plan for projects such as a new single family dwelling, swimming pool, driveway or tennis court showing existing conditions and the proposed construction with proposed re-grading, drainage, soil erosion control measures and their respective construction details, in accordance with local building authority requirements. The site plan process typically includes coordination with building inspectors and municipal engineers to address comments and obtain approvals.
Commercial Site Plans
An engineering plan for projects such as a new commercial use building or structure showing existing conditions and the proposed construction with proposed site alignment, parking lot layout, zoning analysis, grading, drainage, utilities, lighting, landscaping and associated site construction details in accordance with local building authority requirements. Many commercial site development projects require meetings with local municipalities and public hearings to obtain necessary approvals.
Sanitary/Drainage
"For properties that are not in a sewer district, an on-site sanitary system is required. Most sanitary systems comprise a septic tank and leaching pools sized to the residence. In Suffolk County, all permits must be filed though the Suffolk County Health Department and plans must comply with those requirements. In Nassau County, most residential system permits are filed though the local Town or Village building department, and must be certified by a licensed Professional Engineer.
Drainage requirements vary depending on Village, Town or County jurisdiction. All rain runoff must be contained on-site, with engineering volume calculations illustrated in a plan."
Retaining Walls / Bulkhead Design
Requirements may vary, typically all retaining walls 2 (two) feet or higher need permits and all walls 4 (four) feet or more are required to have site plans with calculations for factor of safety for sliding and overturning. Some municipalities regulate boulder embankments as retaining walls. Bulkheads are regulated by the New York State Department of Environmental Conservation when they are located within 300’ feet of saltwater wetlands. They can be constructed with wood or composite piles, steel or composite sheet piles, or dead men with wailers. Most require a NYS DEC wetlands permit, Army Corps of Engineers Nationwide Permit, a New York State Department of Consistency Permit, and a building permit from the local building authority.
