Nebraska Wetland Site Descriptions
(All photographs are at a screen resolution of 72 dpi. If you would like a higher-resolution copy of a photograph for print purposes, please contact Katie McDermott, CTE technology transfer director.)
Waverly Interchange Wetland Bank
Total size of the parcel is 14.64 acres. This wetland mitigation
bank serves the 106 Nebraska and Kansas Loess Drift Hills physiographic
region. This wetland was created by excavation. The site was seeded
and planted with wetland species. Construction was completed in
early 1997. Due to problems with the seeding contractor, only partial
seeding and planting was completed in 1997-1998. The Wetlands Unit
staff hand-planted the site in 1999 and 2000. The site was monitored
in 1999, 2000, and 2001. The site was visited by the Mitigation
Banking Review Team on 30 July 2001. The wetland areas have maintained
excellent hydrology. These areas are dominated by vegetation that
is FACW and OBL. Typical wetland fauna are using these areas for
feeding, loafing, and reproduction. This site also slows flooding
that has overtopped Highway 6. Soils show low chroma, gleying and
oxidized rhizospheres.
Ceresco South Wetland Bank
Total size of the parcel is 11.21 acres. This wetland mitigation bank serves
the 106 Nebraska and Kansas Loess Drift Hills physiographic region.
This wetland was created by excavation. The site was in row crops
before construction. Construction and wetland seeding and planting
were completed in early 1999. The site was monitored in 1999, 2000,
and 2001. The site was visited by the Mitigation Banking Review
Team on 30 July 2001. The wetland areas have maintained excellent
hydrology. These areas are dominated by FACW and OBL vegetation.
Typical wetland fauna are using these areas for feeding, loafing
and reproduction. The upland buffer is well-established. Soils show
low chroma, gleying and oxidized rhizospheres.
Rock Creek Wetland Bank
Total size of this parcel is 96.74 acres. The site has restored freshwater
and saline wetlands. The mitigation bank serves the Eastern Saline
Wetlands physiographic region, and freshwater areas of the site
will serve the 106 Nebraska and Kansas Loess Drift Hills physiographic
region. The wetland was restored by plugging two large erosional
headcuts that were draining the wetlands. Most of the site was in
row crops before restoration. Site was seeded with a high diversity
seed mixture for uplands and wetlands. The site was not farmed in
2001, and construction was completed in 2002. The site was burned
in the spring of 2002. The site was monitored on 8/9/2004. The site
was selectively mowed in early August 2004, and an improvement in
upland and wetland (warm season) vegetation was noted. The site
was last visited by the Mitigation Banking Review Team on 9/10/2004.
FAC, FACW and OBL saline vegetation dominates some of the wetland
areas. The PEMA saline areas are dominated by Iva annua and Hordeum
jubatum. The PEMC areas have some Scirpus maritimus. Other areas
are dominated by freshwater wetland vegetation. The upland areas
are still developing desired vegetation, with improvement noted
in 2004. Typical wetland fauna are using these areas for feeding,
loafing and reproduction. Soils show low chroma, gleying and oxidized
rhizospheres. Hydric soils for the site are Colo silty clay loam,
Kennebec silt loam and Salmo silty clay loam.
West Point Wetland Bank
Total size of the tract is 120.01 acres. The wetland mitigation
bank serves the 102B - Loess Uplands and Till Plains physiographic
region. The wetland was restored by plugging existing surface drainage
ditches. Construction was completed in the summer of 2002. The site
has been monitored four times since construction. Several additional
walk-through inspections have also been conducted to monitor site
development. The site was visited by the Mitigation Banking Review
Team on 31 July 2001 and 4 April 2003. The wetlands are dominated
by FACW and OBL vegetation. Small areas within the PEMA wetlands
support red clover and timothy, but these are not dominant. Healthy
populations of fringed loosestrife (Lysimachia ciliata) and tufted
loosestrife (Lysimachia thyrsiflora) were noted on the site in 2004.
Flora and fauna found on the site are consistent with that of other
wet meadows. Bobolink (Dolichonyx oryzivorus) and sedge wren (Cistothorus
platensis) are indicators of wet meadows. Other typical wetland
fauna are using these areas for feeding, loafing and reproduction.
Soils show low chroma, gleying and oxidized rhizospheres. Soils
for the site are mapped as Lamo silty clay loam, which is a hydric
soil.
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