Throughout our history, site development has been an essential service of Alpha & Omega Group, especially with regard to site utilities, paved parking lot design, sidewalks meeting ADA requirements, and stormwater control measures (SCMs) for stormwater management. The team provides site design services for municipalities, community centers, churches, schools, private clients, parks, fire stations, and healthcare facilities.

Working closely with the owner, surveyor, architect, landscape architect, and local and state agencies, A&O examines property impacts to conservation areas, wetlands, riparian buffers, landscape buffers, floodplains, easements, utilities, building setbacks, and roadway constraints on specific sites. As local and state agencies enhance regulations to protect our environment and natural resources, permit requirements change. Our staff has the knowledge and experience with local ordinances, property zoning, and state regulations that determine what will be approved for a proposed development.

Pavement marking plans are prepared to reflect intermediate and final traffic patterns along the roadway. A&O has experience with a variety of pavement marking plans including rural and urban roadways, lane widenings, school zones, bicycle lanes, railroad crossings, and signalized intersections.

Stormwater control measures (SCMs) are measures taken to control rainwater runoff into streams and lakes. As rainwater flows off pavement, rooftops, or even lawns, it carries pesticides, fertilizers, oil, and sediment. SCMs prevent those pollutants from reaching lakes and streams. Our staff is experienced in designing underground storm drainage systems, bio-retention gardens, vegetation strips, or grassy swales. The plants in the structures slow the flow of stormwater to a controlled rate and filter out the pollutants. A level spreader is a type of SCM that dissipates the energy of water flowing down hill, which controls erosion.

A&O has designed public water and sanitary utility extensions, as a part of our site design services, for schools, churches, and other public and private entities. We communicate with public utility companies to determine current system capabilities, past performance, future system expansion, and potential impacts. We develop hydraulic models to determine water flow and residual pressure. We lead the permitting process through NC Department of Environmental Quality and will apply for right-of-way encroachment agreements through NCDOT.

A&O designs site drainage and erosion control to protect the natural environment during the construction phase of a project. Our plans typically include soil stabilization timeframes, existing ground contours, and construction sequencing for multi-phase erosion and sediment control measures without contours. Erosion control measures may include silt fences with outlets, slope matting, curb inlet screens, sediment ditches with pump bags, temporary sediment basins, diversion ditches, and rock dams, and coir fiber wattles.

A&O's construction administration team assists with answering questions and issuing addenda prior to bid opening, certifying bid tabulation and preparing a notice of award. After the award, A&O will schedule and attend preconstruction meetings with all stakeholders, review pay applications, respond to RFIs, review drawings, attend progress meetings, and provide project updates. We will also perform all close-out duties, oversee final inspections, and issue notices of completion.