SARP: Southeast Aquatic Resources Partnership

South Fork Cumberland River - Big South Fork NRRA, TN/KY

Unprotected fording areas threatened fish & mussels.

Park visitors use newly-constructed stream crossings.

Introduction:

The Big South Fork National River and Recreation Area is a focus for major conservation efforts due to the outstanding aquatic features found in the Big South Fork of the Cumberland River.  The park is also a favorite location for equestrian riders, cyclists, and hikers.  Managing a park for such multiple uses, while conserving biodiversity, is wrought with challenges.

Description of Site:

• 125,000 acres in north central Tennessee with 450 miles of trails.
• 475 miles of streams with trails crossing at various points.

• 128 fish species and 31 mussel species, of which 10 mussel species and three fish species are endangered.

Problem:

• Often trail crossings are in un-protected fording areas, resulting in crushed organisms, increased erosion and greater stream sediment load.

Strategy:

• Delineate the corridor with slab rock.
• Create stream crossings hardened concrete planks running parallel to the stream bank, placed across the width of the stream
• Utilize funding to purchase slab rock, tri-lock block and other materials.

• Utilize volunteers to install purchased slab rock; utilize park crews to install tri-lock block.

Success:

• Park monitoring efforts have documented a drastic reduction in the number of animals and plants crushed by user groups and decreased sediment load. The corridor is now clearly marked. Law enforcement action can be taken when users cross stream outside of the corridor.
• Duskytail darter, an endangered fish, has been observed using the area since the rocks were placed. It may take the mussels a few years to occupy the new habitat.
• Nine crossings are installed. Goal is 250 crossings.