Project Scope: Lead Engineer for all development for the 2000 phased Unit Residential/Golf Course community.
Location: Bridgeville, DE
Engineering design services for Phase 1, 2, 3A & 3B of the Heritage Shores residential and golf course development. Design work required during these phases included; grading, storm drainage, water, sewer, stormwater management and sediment control. Phase 3C involves the infrastructure design engineering of the Heritage Shores development. RAUCH inc. is designing a biochip reactor and micro bio retention area for the fourth phase of the project. This project also encompasses civil engineering design services including site design, storm water management, sediment control, utility design, hydrology and project management. Involved the creation of extensive recreational amenities and open space, landscaping and trails for bike and pedestrian use. In addition, RAUCH inc. is focused on as-built documentation of public infrastructure and providing asset management to the Town and developer. Specific stormwater management aspects of the project includes development of a stormwater management plan to address preliminary phasing assumptions and general runoff assumptions for the future residential areas, per current Sussex Conservation standards. This plan focuses on the re-direction of stormwater to the existing stormwater management pond system. RAUCH inc. performed the necessary calculations of pre and post development stormwater runoff to produce the pre & post development runoff models in order to design the drainage areas within established times of concentration, runoff curve numbers, and all stormwater passageways, including sheet flow, channel flow and pipe flow. Runoff flow rates and volumes were calculated for the 1 year, 2 year, 10 year, and 100 year storm events. Pertaining to the proposed grading and onsite storm drainage, preliminary grades were established to determine site fill and building pad elevation requirements to avoid flooding during the 100 year storm event. Further, a preliminary storm drain layout was proposed to ensure the site will drain and exceed the minimum drainage slope requirements. Extensive recreational amenities and open space. Helped design a biochip reactor and micro bioretention area for the latter phases of the project.
RAUCH inc. also designed bicycle and pedestrian routes for the developer, to be compatible with DELDOT standards. This included the installation of a 9 foot wide, 4,037 foot long asphalt bike trail. Proper erosion and sediment control measures were implemented during the project, which also involved backfilling the completed asphalt trail with available topsoil materials, grading of all disturbed areas, backfilling to provide positive drainage and prevention of standing water, and seeding and straw mulching of all disturbed areas to obtain adequate re-stabilization and grass growth. The scope of work also included providing grading sufficient for drainage of water by installing minor drainage pipes to convey surface drainage from one side of the trail to the other and re-grading the landscape berm to obtain the desired design cross section. Emphasis was placed on designing the trail to avoid guy wires from existing utility poles, at the same time modifying the end of an existing path to meet the design section of the new path. Value engineering included utilizing existing infrastructure, optimizing existing routes and designing specification alternatives.
Discipline: Comprehensive Community Development