Wetlands

Ongoing Research:

Development of Functional Model for Hydrogeomorphic Assessment of Intermontane Depressional Wetlands

Performer(s): University of Montana - Biological Station
Sponsor(s): FHWA; U.S. Army Corps of Engineers (COE)

For more information:

Paul Garrett. FHWA, Colorado Div. Office, 555 Zang St., Room 400, Lakewood, CO 80228;
Tel: 303-969-5772 x332; Fax: 303-969-6727; Email: Paul.garrett@fhwa.dot.gov.

Abstract

The purpose of the project is to provide an accurate, concise method of performing functional assessments on wetlands for the Section 404 (Clean Water Act) regulatory program compliance purposes, including determination of requirements for and planning of mitigation projects. Key characteristics of wetlands were identified and measured to allow rapid evaluation of wetland functional capacity for different wetland functions, such as habitat, water storage, and water quality. The functional capacity values are used in determining wetland impacts due to discharge of fill in or around wetlands, including that required in highway projects. They are also used to determine mitigation requirements, and to design mitigation projects. The resulting manual will be used by the Montana Department of Transportation (MDT), other regional DOTs, and other agencies.

Development of Functional Model for Hydrogeomorphic Assessment of Low Gradient Riverine Wetlands in the Southern Coastal Plain

Performer(s): U.S. Environmental Protection Agency (U.S. EPA)
Sponsor(s): FHWA ; U.S. Army Corps of Engineers (COE)

For more information:

Paul Garrett. FHWA, Colorado Div. Office, 555 Zang St., Room 400, Lakewood, CO 80228;
Tel: 303-969-5772 x332; Fax: 303-969-6727; Email: Paul.garrett@fhwa.dot.gov.

Abstract

The purpose of the project is to provide an accurate, concise method of performing functional assessments on wetlands for Section 404 (Clean Water Act) regulatory program compliance purposes, including determination of requirements for and planning of mitigation projects. Key characteristics of wetlands were identified and measured to allow rapid evaluation of wetland functional capacity for different wetland functions, such as habitat, water storage, and water quality. The functional capacity values are used in determining wetland impacts due to discharge of fill in or around wetlands, including that required in highway projects. They are also used to determine mitigation requirements, and to design mitigation projects. The resulting operating manual will be used by State Departments of Transportation and other agencies.