Robinsong Ecological Resources,
Inc.is a natural resource management company founded
in Huntsville, Alabama, 1990. Robinsong used its
in-depth knowledge of wetlands restoration, stream
channel and wetland design, and knowledge of environmental
permitting and mitigation requirements to open
Alabama's first commercial wetland mitigation
bank. The bank, known as the Flint Creek Wetlands
Mitigation Bank, located in the Tennessee Valley
adjacent to Flint Creek in Hartselle, Alabama,
sold out of credits in 2006. Upon completion of
credit sales, the bank's land was given to Morgan
County, Alabama, as an educational
and recreational resource. The Flint Creek
watershed continues to enjoy the ecological lift
provided by the bank (see details below, also
a discussion of specific environmental improvements
here.
Development of the Flint Creek
Wetland Mitigation Bank
Flint Creek is one of the largest watersheds in
the Wheeler Basin of North Alabama’s Tennessee
River [HUC 0603002].
The bank was established to
- restore 650 acres of forested wetlands
- provide timely, ecologically sound, off-site
mitigation options for the public and private
sector
- provide water quality improvements to the
Flint Creek Watershed
- offer educational and recreational opportunities
to the community
The high level of pollution in the Flint Creek
Watershed—ranked by EPA as third most polluted
in the nation—and the importance of the
Wheeler Wildlife Refuge, located at the mouth
of the Flint Creek at the Tennessee River led
EPA to select Flint Creek as its pilot watershed
project in 1992. The water quality of the Flint
Creek Watershed was such that the dissolved oxygen
levels fell below the fish and wildlife classification
for all segments of the 25 mile length of Flint
Creek. The City of Hartselle, Alabama, was forced
to abandon an intake and water treatment facility
on Flint Creek as a result of excess nutrients.
That same year it was determined that swimming
in Flint Creek could provide health risks due
to pathogens.
The Bank’s 650-acre wetlands system is having
a positive impact on the water quality of the
Flint Creek Watershed. The cooperative agencies
involved in the Flint Creek Watershed Project
(EPA, US Fish & Wildlife Service, TVA, Morgan
County, ADEM, Alabama Forestry Commission and
Geological Survey of Alabama) have embraced the
Bank wholeheartedly.
Restoration activities began in November 1999
after the previous owner removed one thousand
cattle and feedlot operations. More than 30 ditches
were plugged and transformed into ponded areas.
In February 2000 much of the 522.3 acres that
comprise Phase One of the Bank was reforested
with over 14 native hardwood species represented
in 160,000 trees. Monitoring was completed in
2002 and annual performance standards were met.
An MOA for Phase Two Stream Mitigation, submitted
to the USACE in March, 2003 cleared the way for
the development of stream mitigation through the
Bank within the three major HUC watersheds within
the Tennessee Valley of north Alabama [HUC0603001,
HUC0603002 and HUC0603005]. One hundred and twenty-seven
acres of stream frontage on-site at the bank [of
a total of 623 acres] were developed as stream
mitigation resources for HUC0603002.
Development and subsequent
sales of credits
Work on Phase One of the Bank restored 522.3 acres
of prior converted cropland, which yielded 429
wetland mitigation credits of hardwood bottomland
wetlands. Two hundred fifteen (215) credits were
released upon approval of the mitigation banking
instrument; 214 credits were released when five-year
performance standards were met to the Corps of
Engineers' criteria in 2005.
| The Bank was reforested with
over 14 native hardwood species represented
in 160,000 trees. |
 |
| A flood event in 1998 innundated the bank
with over twelve feet of water in some places.
This photo depicts the potential of the bank
to act as a protective feature of the local
watershed. |
 |
| One of the bank's ponded intermittent streams
during the wet season. |
 |
| Tracks in the bottom of a different segment
of the same intermittent stream shows that
it is a highway for turtles entering the dry
season. |
 |
| |
|
|