LOUISIANA COASTAL AREA LCA Barataria Basin Barrier Shoreline Restoration Feature Caminada Headland a - PowerPoint PPT Presentation

1 / 30
About This Presentation
Title:

LOUISIANA COASTAL AREA LCA Barataria Basin Barrier Shoreline Restoration Feature Caminada Headland a

Description:

Restore shoreline, dune and back-barrier marsh to increase ... Restore/provide critical wintering habitat (intertidal beaches and flats, ... – PowerPoint PPT presentation

Number of Views:56
Avg rating:3.0/5.0
Slides: 31
Provided by: b2pd
Category:

less

Transcript and Presenter's Notes

Title: LOUISIANA COASTAL AREA LCA Barataria Basin Barrier Shoreline Restoration Feature Caminada Headland a


1
LOUISIANA COASTAL AREA (LCA) Barataria Basin
Barrier Shoreline Restoration FeatureCaminada
Headland and Shell Island Feasibility Study
  • Scoping Meetings
  • June 2005

2
Scoping Meeting Agenda
  • Open House 600 630 pm
  • Overview of Study,
  • Question and Answer 630 715 pm
  • Scoping Comments 715

3
Scoping Meetings
  • June 14, 2005 Belle Chasse Auditorium,
    8398 Hwy 23, Belle Chasse, LA
  • June 16, 2005 Larose Civic Center,
    307 East 5th Street, Larose, LA
  • Scoping comment period ends
  • June 27, 2005

4
Why Are We Here?
Determine the scope of significant issues related
to preparation of a draft EIS for the Louisiana
Coastal Area (LCA), Louisiana Caminada Headland
and Shell Island Restoration Feasibility Study
(LCA CSI Study).
5
  • National Environmental Policy Act of 1969 (NEPA)
  • Environmental information is made available to
    the public before decisions are made and before
    actions are taken.

Breakwaters, Port Fourchon, LA
6
INTERAGENCY
7
History
  • April 28, 2000 Notice of Intent for LCA
    Barataria Shoreline Restoration Study
  • May 5, 2000 Notice of Intent for LCA Wetland
    Creation
  • Study
  • May 19, 2005 Notice of Intent for the LCA
    Barataria Basin Barrier Shoreline Restoration
    Feature, Caminada Headland and Shell Island
    Restoration (CSI) Feasibility Study
  • One of 5 critical, near-term projects recommended
    in LCA Ecosystem Restoration Program
  • Combines and supercedes two previous Barataria
    restoration studies

8
Study Area
Study Area LCA Caminada Headland Shell Island
Feasibility Study
9
Components of the Near-Term Plan
Program Components
Five Near-Term Critical Features Ten Other
Near-Term Critical Features Beneficial Use
Dredged Material Modifications to Existing
Structures ST Program ST Demonstration
Projects Long-Term, Large-Scale Concepts
10
Selected Restoration Projects
11
Caminada Headland
12
Shell Island (Lanaux Island)
13
Study Purpose
  • Identify plan of action that reverses current
    trend of degradation in Caminada Headland and
    Shell Island
  • Target ecological restoration of critical,
    high-priority areas
  • Increase sustainability with essential form and
    function of the natural barrier ecosystem
  • Ensure restoration results in multiple use
    benefits

14
Study Objectives for Caminada Headland
  • Maintain the Caminada Headland which will
    preserve a critical barrier headland
    without disrupting the natural hydrologic
    regime
  • Preserve the integrity of the barrier headland
    by closing existing breaches
  • Sustain and improve shoreline, dune and
    interior marsh habitat quality for essential
    fish and wildlife species
  • Reduce wave energy transmission by providing a
    natural storm protective buffer for interior
    marsh and chenier ridge habitats north of the
    Caminada Headland

15
Long-term average erosion rate
41 ft/yr, range of 8.6
ft/yr to 51.9 ft/yr.
Caminada Headland Erosional History 1884 - 2002
 
16
Benefits of Caminada Headland Restoration
Port Fourchon, LA
  • Contains largest black
  • mangrove habitat
  • Contains rare maritime forest
  • habitat
  • Protects infrastructure
  • Reduces storm damage
  • Protects marshes and other resources

17
Study Objectives for Shell Island
  • Restore the geomorphic function of the barrier
    shoreline in the vicinity of Shell Island
  • Reestablish the separation of the interior bays
    from the Gulf of Mexico
  • Restore shoreline, dune and back-barrier marsh
    to increase habitat utilization by essential
    fish and wildlife species
  • Reduce wave energy transmission by providing a
    protective buffer to the interior bays and
    marshes north of Shell Island Bay

18
Long-term erosion rate 38.5 ft/yr, range 8.0 to
101.5 ft/yr.
Shell Island Erosional History 1884 - 2002
19
Benefits of ShellIsland Restoration
  • Protects marshes and other resources
  • Restores natural longshore sediment transport
    processes
  • Protects critical Piping Plover habitat
  • Restores natural tidal hydrology

20
Proposed Action
  • Consider mining offshore, nearshore, and/or
    riverine sediment sources to re-establish
    sustainable barrier system (e.g. barrier islands,
    shorelines, and headlands) at the Caminada
    Headland and Shell Island reaches of the
    Barataria Basin Barrier System

21
Alternatives
  • Build on alternatives identified in LCA Barrier
    Shoreline and LCA Wetland Creation Studies
  • Consider all reasonable restoration alternatives
  • Borrow sources
  • Varying widths and configurations of shoreline
    and dune heights
  • Marsh restoration as a platform for barrier
    shoreline rollover
  • Other recommendations

22
Question and Answer SessionNEPA Scoping
Questions and formal comment period to follow

23
NEPA and the SCOPING PROCESSThere shall be an
early and open process for determining the scope
of issues to be addressed and for identifying the
significant issues related to the proposed
action.
24
Scoping Questions
  • Question 1 What are the critical natural and
    human environmental problems and needs that
    should be addressed in the EIS?
  • Examples
  • barrier shoreline sustainability
  • barrier shoreline habitat restoration
  • hurricane and flood protection
  • protection of infrastructure

25
Scoping Questions
  • Question 2 What are the significant resources
    that should be considered in the EIS?
  • Examples
  • barrier habitat
  • offshore sand resources
  • water quality
  • threatened and endangered species

26
Scoping Questions
  • Question 3 What are the reasonable restoration
    alternatives that should be considered in the
    EIS?
  • Examples
  • consider alternative borrow sites from inland
    reaches of the Mississippi River and outside the
    system
  • re-establish the barrier shoreline further inland
  • emphasize marsh creation as major component of
    barrier shoreline restoration

27
Providing Scoping Comments
  • Provide oral or written comments at scoping
    meetings
  • Worldwide web at www.LCA.gov
  • Email LCACSI_at_mvn02.usace.army.mil
  • Letter postmarked no later than June 27, 2005 to
  • Dr. William P. Klein, Jr., CEMVN-PM-RS,
    P.O. Box 60267, New Orleans, LA 70160-0267
  • Comments will not be accepted if submitted by
    facsimile (fax)

28

A Scoping Report will be prepared that
summarizes all scoping comments.
SCOPING REPORT
Louisiana Coastal Area (LCA) Louisiana ?
Caminada Headland and Shell Island Restoration
Feasibility Study  
Scoping Comments   June 2005
29
  • Points of contact for comments or questions are
    located in packet
  • Visit the website at www.lca.gov

30
Request for Scoping Comments
  • The Ground Rules
  • Comments will be taken in order
  • 3-minute per person comment period
  • Comment period is not a forum to debate differing
    opinions
  • Be polite and courteous
  • Each person is entitled to their opinion

31
Caminada Headland
  • 1884 - 2002 long-term average erosion rate 41
    ft/yr, range of 8.6 ft/yr to 51.9 ft/yr.
  • Tropical Storm Bill (2003) erodes 50 80 feet of
    beaches.
  • Pattern of shoreline erosion will continue as
    tropical storms impact coastal Louisiana every
    1.2 years, on average.
  • Historic estuarine bays, such as Bay Marchand,
    and bayous, such as Pass Fourchon, no longer
    exist due to this rapid, persistent erosion.  

32
Shell Island
  • Long-term average erosion rate
    38.5 ft/yr, range 8.0 - 101.5 ft/yr.
  • Shell Island migrates inland and merges with the
    small barrier island at Grand Bayou Pass.
  • 1956 Bayou Fontanelle jettied and Shell Island
    migrates further inland and attaches to the new
    Empire jetties.

33
Why Restore Caminada Headland and Shell Island?
  • Prevent critical land loss where predicted to
    occur.
  • Restore endangered critical geomorphic structure
    (e.g., landbridge, barrier system).
  • Provide some storm surge protection to populated
    areas, critical oil and gas infrastructure, and
    marsh habitat residents in Barataria basin .
  • Restore/provide critical wintering habitat
    (intertidal beaches and flats, associated dune
    systems and flats above annual high tide) for
    threatened Piping Plover.

34
Alternatives from LCA Barataria Barrier Shoreline
Study
35
Alternatives from LCA Barataria Barrier Shoreline
Study
36
Ship Shoal Potential Borrow Area
Shell Island
Caminda
37

Chenier Caminada Unit
Alternatives from LCA Wetland Creation Study
38
Empire
Potential Near-Shore Riverine Borrow Areas
39
(No Transcript)
40
(No Transcript)
Write a Comment
User Comments (0)
About PowerShow.com