Search results with tag "Detention basin"
CHAPTER 9.4 Standard for Extended Detention Basins
www.njstormwater.orgNew Jersey Stormwater Best Management Practices Manual February 2004 CHAPTER 9.4 Standard for Extended Detention Basins Definition An extended detention basin is a facility constructed through filling and/or excavation that provides
Chapter 2 – Dry Extended Detention Basin
www.virginiadot.orgThe maximum drainage area to an extended dry detention facility is frequently restricted to no more than 50 acres. When larger drainage areas are directed to a single facility, often there is a need to accommodate base flow through the facility. When no permanent pool is proposed, as with a dry extended detention basin, the presence of
Chapter 6 Storage Volume for Detention Basins Storage ...
cecalc.comThe detention basin is the most widely used measure for controlling peak discharge. It is generally the least expensive and most reliable of the measures that have been considered. It can be designed to fit a wide variety of sites and can accommodate multiple-outlet spillways to meet requirements for multifrequency control of outflow.
BMP #: Constructed Wetlands
www.bfenvironmental.comPennsylvania Stormwater Management Manual 5 Section 5 - Structural BMPs z Offline Constructed Wetland z Retrofit for existing detention basins Figure 5. Constructed Wetland Created from an Existing Detention Basin (Tredyffrin Twp., PA)
Chapter 11 ENERGY DISSIPATORS - South Dakota …
dot.sd.govChapter 11 ENERGY DISSIPATORS 11.1 INTRODUCTION 11.1.1 Overview The failure or damage of many culverts and detention basin outlet structures can be traced to unchecked erosion. Erosive forces, which are at work in the natural drainage network, are often increased by the construction of a highway or by urban development.
DRAINAGE DESIGN MANUAL - Dallas
dallascityhall.com3 7 3 2 Outlet Control 44 3 7 4 Energy Gradient Analyses 45 ... 6 2 DETENTION BASIN 85 ... 10 3 2 6 Inlet Structures 131
Detention Basin fact sheet - Dauphin County
www.dauphincd.orgBest Management Practices Fact Sheet Detention Ponds PURPOSE: Detention ponds temporarily store stormwater runoff, thereby reducing the peak rate of runoff to a …