Approximately 7,558 linear feet of terraces (3.5 acres)
will be constructed within the
proposed PAC WMA. Construction of the terraces will be
accomplished utilizing marsh
buggy excavator. Depending on the soil conditions
adjacent borrow areas may be
staggered and parallel to the actual terrace. The top
width of the terrace will be
approximately 20 feet and terrace lengths will be
approximately 500 feet with a 50 feet
openings between terraces. Terraces will be planted
utilizing plugs of smooth cordgrass (Spartina alterniflora) once construction is complete.
These terraces will be built in a
planned 4,700-acre freshwater conservation management
unit. This unit will be
constructed with a grant utilizing NAWCA funds.
The
objective of this management unit
will be to increase emergent vegetation, submerged
aquatic vegetation and habitat
diversity. The unit will conserve freshwater from a
forced drainage system and reduce
uncontrolled tidal exchange, tidal scour and salt water
intrusion. The terraces planned for
this area will further enhance the system by slowing the
movement of freshwater and
reducing wave energy and turbidity. These terraces will
also protect remaining emergent
marshes and enhance waterbird and fisheries habitat. PAC
WMA is a very popular area
for waterfowl hunting and recreational fishing. Hunting
success is high in adjacent water
management units. Adjacent waters are extremely important
for recreational and
commercial fishing.
The terraces, adjacent emergent
marsh, and submerged aquatics
will be monitored as a part of the unit monitoring plan.
Land/water ratios will be
checked with photography every 5 years. Submerged
aquatics will be checked annually
along with growth of emergents on each terrace.

CLICK HERE TO ENLARGE PHOTO

CLICK HERE TO ENLARGE PHOTO
Final Report:
by project leader Robert Linscombe, January 31, 2005
First Quarter Activity: (Jan, Feb, March 2004)
During the first quarter of this project, the 404 permit
was secured and Louisiana Department of Wildlife &
Fisheries (LDWF) equipment (marsh buggy excavator) was
transported to the job site. The work schedule for LDWF
marsh buggy operators was completed. Oil and gas pipeline
companies with existing rights-of-way in the construction
area were contacted and the pipelines were marked.
Second Quarter Activity: (April, May, June 2004)
During the second quarter terrace construction was
initiated in April 2004 and continued through the end of
the quarter. The number of days of construction depended
upon the availability of operators. During this quarter
the LDWF began discussions with Mike Materne, Wetland
Plant Specialist at Louisiana State University (LSU)
Agriculture Center, concerning research utilizing these
terraces. Ashley Wilson, a graduate student at LSU, was
conducting thesis research related to timing of terrace
planting, as well as spacing and size of the planting
stock. LDWF decided that this information would have
long-term benefits in general and would provide follow up
on these particular terraces. In late May, the graduate
student planted the first three terraces (the north end)
using both vegetative plugs and gallon containers of
smooth cordgrass (Spartina alterniflora). The plugs were
planted on 3-foot centers and the trade gallons were
planted on 5-foot centers. Planting occurred on both
sides of the terraces at mean water level.
During this quarter, LDWF also advertised for bids for
the construction of approximately 4,000 feet of terraces.
LDWF also met with personnel at the Barataria-Terrebonne
National Estuary Program (BTNEP) and provided an overview
of the project to the staff in mid June 2004. During this
quarter, LDWF also requested an extension of this project
through November 30, 2004.
Third Quarter Activity: (July, Aug, Sept 2004)
During the third quarter terrace construction continued
with LDWF operators working a total of 19 days. LDWF
constructed a total of 6,158 feet of terraces with their
equipment. In mid September 2004 the bid for additional
construction of 4,000 linear feet of terraces was awarded
to Chem Spray South, Gonzales, LA. The unit price per
linear feet was $10.50. Since the price came in lower
than anticipated, the contract for construction was
amended, adding an additional 1,500 linear feet, totaling
5,500 linear feet to be built. The contractor began
working Sept 22, 2004 and worked 7 days during the
month. In September 2004, the LDWF advertised to receive
bids to plant approximately 6,000 plugs of smooth
cordgrass on the new terraces.
Fourth Quarter Activity: (Oct, Nov, Dec 2004)
During the fourth quarter terrace construction continued.
In October 2004 the contractor worked a total of 17 days
and in early November, he worked 3 additional days with a
final inspection occurring on Nov 11, 2004. The
total cost for the 5,500 linear feet of terrace
construction by Chem Spray South was $57,750.
The bid to plant 6,000 plugs of smooth cordgrass was
awarded to Black Lake Marsh Inc., Lake Charles, LA. The
awarded price for this work was $1.54 per plant for a
total of $9,240. This contractor began planting Oct 26,
2004 and a final inspection occurred Nov
19, 2004. In addition to these plantings, researchers at LSU also planted 1,053 smooth cordgrass plugs, 610 trade
gallon containers (smooth cordgrass) and 249 plugs of
bullwhip Scirpus californicus. LSU and LDWF have obtained
low-level aerial photography of these terraces and the
unit and will continue to monitor their condition through
the 2005 growing season. LDWF will also monitor these
terraces and others in this area for short and long term
survival, water quality and submerged aquatic plants.
Outreach and Education Efforts:
The Barataria-Terrebonne National Estuary Program (BTNEP)
assisted in outreach efforts for this project. Selected
materials from Power point presentations provided by
Wildlife and Fisheries (WLF) have been incorporated into
BTNEP presentations given by Community Relations
Coordinator, Leslie Robichaux McVeigh at various civic
groups. These groups include, but are not limited to:
Bayou Junior Women’s Club (conservation program) Bayou
Lafourche Chapter, Daughter of the American Revolution
(conservation Program); Bayou Industrial Group
(restoration project updates), and the Lockport Rotary
Club (weekly program).
In addition, this project was the featured storyline for
the month of August in the BTNEP’s annual Tidal Graph
Calendar, which was widely distributed to marinas,
fishing clubs, conservation clubs, BTNEP Management
Conference members and stakeholders. A total of 15,000
calendars have been distributed as of Jan 31, 20005.
This project has also been discussed on KLRZ (FM) and
KTIB (AM) radio stations as part of the BTNEP’s regular
participation in public affairs programming by these two
stations. The Community Relations Coordinator and the
Program Director also brought this project to the
attention of Louisiana Legislators during hearings of the
Joint Legislative Committee on Restoration and Flood
Protection during August 2004 and October 2004.
Summary:
Nine terraces and a short piece of a tenth
terrace were constructed and planted for the completion
of this project. A total of 11,658 feet of terraces were
constructed and planted. At an approximate width of 23
feet, a total of 6.1 acres of emergent marsh was created.
This is 2.6 acres more than the grant called for. The
construction of additional acreage was accomplished as a
result of LDWF utilizing its own equipment and operators
to build approximately 6,158 feet of the total 11,658
feet of construction.

July 28, 2004 - New terraces with plants on first three terraces visible.
Partners Involved
(with links to websites):