Modeling Sediment Dynamics St. Croix River

Post Date

May 13th 2008

Application Due Date

May 30th 2008

Funding Opportunity Number

A659008RM38

CFDA Number(s)

Funding Instrument Type(s)

Cooperative Agreement

Funding Activity Categories

Natural Resources

Number of Awards

1

Eligibility Categories

Other

This is a single source award to Macalester College, St. Paul, MN. The applicant is uniquely qualified to perform the activities based upon a variety of demonstratable factors, i.e. a longstanding relationship with the St. Croix National Scenic Riverway.

Funding

• Estimated Total Funding:

  $149174

• Award Range:

  $None - $None

Grant Description

Recent studies have shown that junvenile mussel density is decreasing in native mussel communities that harbor Federally-listed mussel species. These declines have been accompanied by increased fine sediment deposition at these locations in the St. Croix National Scenic Riverway. One location is listed as an Essential Habitat Area in the Higgins Eye Recovery Plan. Other monitoring sites on the river have not experienced the decline in juvenile mussels or in sediment fining. Sites that have experienced declines are found in a ten-mile stretch of river downstream of the hydroelectric dam at St. Croix Falls, Wisconsin. We will develop a model decribing the relationship between discharge and sediment transport, monitor suspended sediment transport, and examine sediment cores from the reservoir above the dam as well as the forces of shear-stress above and below the dam.

Contact Information

• Agency

  Department of the Interior

• Office:

  National Park Service

• Agency Contact:

  Theora McVay
  Contract Specialist
  Phone 402-661-1662

• Agency Mailing Address:

  theora_mcvay@nps.gov

• Agency Email Address:

  theora_mcvay@nps.gov