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High Point Preserve is a 45 14 lot subdivision approximately 1 mile inland from the Atlantic Ocean near Bethany Beach, Delaware. The flat topography and shallow water table presented significant challenges in meeting the Delaware Sediment and Stormwater Regulations. Axiom Engineering prepared a hydrodynamic watershed study and proposed land efficient BMPs to satisfy the regulations and avoid the loss of 3 residential lots indicated by conventional methodology.
In 2014, the Delaware Department of Natural Resources and Environmental Control adopted revised Sediment & Stormwater Regulations that rendered some project financially inviable. These controversial regulations were eventually overturned by the Delaware Supreme Court, but Sea Star Villagein Millville by the Sea was subject to these regulations. Axiom Engineering prepared an 1,100 acre hydrodynamic watershed study and proposed several environmentally sensitive and land efficient BMPs to satisfy the regulations and increase the project yield to 102 dwellings instead of the 97 dwellings indicated in the initial concept plan.
Apple Arbor is a 14 lot subdivision approximately 1 mile inland from the Atlantic Ocean near Bethany Beach, Delaware. The flat topography and shallow water table presented significant challenges in meeting the Delaware Sediment and Stormwater Regulations. The project met compliance with a combination bio-swale and wet extended detention basin without adversely affecting project yield.
Phase 1 of the Villages @ Herring Creek included the construction of a spray irrigation field for the on-site disposal of treated wastewater. Several years after the wastewater treatment plan was activated, Sussex County Engineering Department expanded central sewer service to include the project. The prior engineering plan for Phase 2 included removal and re-grading of the entire wastewater lagoon and all associated infrastructure. Axiom's re-design provided significant cost savings by retaining the subgrade liner intact for the majority of the lagoon to serve as a liner for the permanent stormwater management
Stoney Ridge Subdivision is a 41 lot residential subdivision approved and constructed under Sussex County's cluster ordinance. During feasibility review, Axiom Engineering identified significant drainage problems with the property. The developer was able to secure off-site easements prior to settling on the purchase. The resulting design allowed for the a significantly higher yield than would have been possible absent the easements obtained.
Fork Landing Subdivision, located in the City of Milford, Delaware, is a mix of single family detached and single family attached (duplex) units. The site discharges to Deep Branch, a tidal water body that outfalls to the Mispillion River. As such, the site qualified for a waiver from stormwater quantity management. Axiom Engineering designed a simple bio-swale and infiltration basin to meet the regulatory requirements with minimal land consumption and construction costs.
