Sickels & Associates, Inc

Landmark Engineering offers surveying, engineering, planning and design services in civil and site engineering. The firm will perform planning and site design services for public and private projects, which include schematic design, design development, construction documents and cost estimates, as well as assistance in obtaining approvals and permits. Engineering disciplines available include topographic surveys, site engineering, grading and drainage, hydraulic analyses and design, streets and entrances, sanitary and storm sewer utilities, erosion and sediment control plans, supporting structural design, preparation and submission of federal, state and local permit applications, other agency processings and construction phase services. Landmark Engineering is located in New Castle, Del.

Pickering, Corts & Summerson is a full-service civil engineering company that offers a range of site development, landscape architecture and land surveying services. The company provides transportation planning, municipal, structural and geotechnical engineering solutions. It offers bridge and underwater inspection and design and build services. Pickering, Corts & Summerson serves clients in Pennsylvania, New Jersey and Delaware. The company has completed various projects, including Macclesfield Park, Alexandria Apartments, Bristol Gateway Campus and Lenape Park. It provides retaining wall design, environmental permitting, scheduling, estimation, geotechnical investigation and constructability consultation solutions. The company offers zoning, septic and drainage design, and boundary and topographic surveying services.