Stormwater Management Facility and Stream Restoration Design, Hampstead Valley 4

The goal of the project is to design and construct a stormwater management facility with a stable receiving stream to meet the requirements of Carroll County’s NPDES permit. HLS is preparing the concept design phase to restore approximately four hundred (400) linear feet (LF) of a degraded perennial stream from a constructed 24-inch RCP outfall to an existing culvert. The concept design phase includes a geomorphic survey and BANCS Analysis of approximately nine hundred (900) LF of existing stream, including a Wolman pebble count, impervious area crediting for stream restoration, preparation of concept plans, and preparation of the stream design report. Report also includes Wasteload Allocation Credit calculations.


Posted on

August 25, 2021