Wetlands

Overview

Wetlands are an ideal technology for:

• Text A
• Text B

Types of Constructed Wetland

Type A	Type B	Type C
Surface water	Minimal Any surface flow can be slowed with check dams	Ponding is encouraged with check dams
Soil	Filter media required	Amendment preferable when possible
Underdrain	Common	Uncommon
Maintenance	Medium to high	Low
Stormwater benefit	High	Moderate
Biodiversity benefit	Increased with native planting	Typically lower

A vegetated area such as a bog, fen, marsh, or swamp, where the soil or root zone is saturated for part of the year.

Structures constructed of a non-erosive material, such as suitably sized aggregate, wood, gabions, riprap, or concrete; used to slow runoff water. Can be employed in practices such as bioswales and enhanced grass swales.

The engineered soil component of bioretention cell or dry swale designs, typically with a high rate of infiltration and designed to retain contaminants through filtration and adsorption to particles.

A perforated pipe used to assist the draining of soils.