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Local Issues: Habitat Conservation
- Missouri River
Sierra Club Policy for Missouri River Management
Adopted by the Nebraska Chapter on September 15, 2001
Adopted by the Northern Plaines Region Conservation Committee on October 14, 2001
- Support native habitat restoration
- Discussion: This should be an over-riding goal of Missouri
River Management, and all other management goals and recommendations
should be subservient to this main management goal.
- No new dams in the Missouri River basin.
- Discussion: Current dams have caused major disruptions in the
ecology of the basin. No new dams should be considered in any of the
major or minor tributaries of the River.
- No new levees that protect beyond “agricultural” level (5 year
flood)
- Discussion: “Industrial” (100+ year protection) levees have
separated the river from its floodplains - see item 8 below.
- Support basin-wide mitigation funding
- Discussion: The US ACOE has been authorized large amounts of
funds to conduct mitigation efforts that will counter the negative
impacts of the past decades of river management. The Sierra Club should
support appropriations to the Corps targeted for such mitigation.
- Support Conservation Easement funding
- Discussion: Short of outright purchases of floodplains and
riverine wetlands (through such efforts as the USFWS’ Big Muddy
Wildlife Refuge), easements could be purchased through WRP, EWRP, and
other long-term or permanent set-aside programs.
- Support monitoring for water quality, habitat quality, species
decline, species recovery
- Discussion: A component of any Missouri River management plan
should be monitoring to ensure that the plan is contributing to habitat
restoration, water quality improvement, and recovery of indigenous
species - particularly those that are listed as “endangered”, but also
to prevent habitat loss and consequent indigenous species decline. It
is much easier to prevent species from becoming threatened or
endangered than it is to recover species on the brink of extinction.
This monitoring should be conducted by USGS, USFWS, and states’ fish
and game management agencies.
- Support Adaptive Management
- Discussion: This goes hand-in-hand with monitoring. If it is
determined that some aspect of the management plan is not having the
expected results, the Corps and other state and federal agencies should
make adaptive changes to the management plan to address the problems.
The adaptive management monitoring and subsequent recommendations for
changes should be conducted by the US Geological Survey.
- Reconnect floodplains and river - levee setbacks (one example)
- Discussion: The Missouri River should not be limited to a
channel designated by the US ACOE, but rather should be allowed to
expand into its floodplain during high-water events. “Industrial”
levees should be set back sufficient distances (1500’ has been
proposed) from the Ordinary High Water Mark to allow an escape valve
for flood water, to replenish the floodplain and to allow restoration
of the riparian corridor.
- Support managing the Missouri River for other than navigational
purposes. (See item 1 above)
- Discussion 1: Cost-benefit analysis does not warrant management
of river for navigation; barge traffic peaked in the ‘70s and has been
in decline ever since, yet the Corps continues to manage the lower
basin (below Gavins) for a non-existent barge industry (12% to 20% of
original expectations). The results have been ecological destruction
and loss of species throughout the basin and negative impacts upon
upper-basin resources. Elimination of management for navigation would
allow 1) restoration of a more natural lower river channel below Sioux
City, 2) partial restoration of seasonal in-stream flows, and 3)
elimination of a heavily subsidized and uneconomic system.
- Discussion 2: We can find no evidence that navigational flows
on the Mississippi River are in any way dependent upon Missouri River
flows. Questions were directed to all state and federal agencies and
none asserted that navigation on the Mississippi was related to the
Missouri.
- Support “unbalancing” the reservoirs
- Discussion: If the “split-season” flow regime is utilized, the
flows from the upper basin reservoirs should be cycled, rather than
drawing down one reservoir year after year. This will allow exposure of
the sandbars and mudflats in the upper basin reservoirs on a cyclical
basis, and should enhance nesting success for the endangered bird
species. However, careful monitoring and adaptive management (see item 7
above) should be utilized to ensure that the results are positive.
- Oppose bank stabilization and destruction of riparian zone -
basin-wide
- Discussion: See items 2, 4, and 8 above.
- Support setbacks for housing/residential developments - see
statement on P&Z county protection, floodplain preservation,
riparian zone protection, and setbacks for aesthetics. Minimum
protection for 100-year flood level.
- Discussion: Riverfront development is destroying the public
ownership values of the Missouri River at an alarming rate; trophy
homes built close to the river command a premium price but destroy
riparian habitat and diminish the aesthetic quality of the river.
Carefully planned zoning ordinances, when combined with federal
incentive programs, can minimize many of the negative impacts of
riverfront housing developments. These include setbacks for houses,
screening of buildings using natural vegetation, and blending homes
with natural topography. The Sierra Club supports and will work with
local zoning boards and county commissions, as well as citizens groups,
to secure and implement proper ordinances that focus on the public
ownership values of the river.
- Support more dependence on natural systems - less on engineering
- Discussion: We prefer natural rivers and natural systems over
manipulated ones. Unintended consequences of engineering “solutions”
often create more problems than are solved.
- Need a Sierra Club entity to focus on Missouri River Basin (using
Lewis and Clark Bicentennial funding, for example)
- We support the “Split-Season” flow regime for spring high flows 1
of every 3 years, low summer flows each year. However, the “fall rise”
is not historically nor ecologically justified.
- Discussion 1: We support flow modification to manage MO River
for wetland communities, populations of all indigenous wildlife
species, endangered species recovery, habitat restoration and
recreation by higher spring rise, low summer flows. Fall flows should
be determined by adaptive management reviews by the USGS with integral
independent review and analysis.
- Discussion 2:Fall rise is not justified by the historic
hydrographic records and we consider it to be artificial and
unnecessary; apparently it is advocated by the state and federal
agencies to ensure sufficient flow for navigational interest. It is our
position (see item 9 above) that the River should not be managed for
navigation.
- Discussion 3:Low flow in summer should be sufficient to protect
other interests (recreation, species, habitat restoration)
- Discussion 4: Caveat: Flow modification should have little
impact beyond 60 miles below Gavins - at least not from Sioux City on
down. Natural flows from the rivers below Gavins Point provide
attenuation of the impacts of flow releases from upstream.
- Discussion 5: We view the “split season” flow regime as one
quite small component of a return to a more natural river hydrograph.
Too much emphasis has been placed on this component by upstream and
downstream political interests.
- Retirement of Gavins Point dam as a flood control or water
retention structure.
- Discussion 1: As Gavins Point Dam approaches the end of its
useful life due to the sediment buildup behind the dam, consideration
should be given to the possibility of removal and restoring the
sediment flows to the river.
- Discussion 2: We support finding ways to redistribute the
sediments and water-flows necessary to rebuild the natural communities
of the entire lower Missouri River to the Gulf of Mexico.
- Discussion 3: Short of physical removal of Gavins Point, it
should become a “run of the river” structure (water in, water out).
- Opposition to out-of-basin diversions
- Discussion: We oppose out-of-basins diversions that would
potentially impact the historic natural fish and wildlife communities
within the basin, or potentially introduce Missouri River basins
species into other watersheds/basins.
- Opposition to basin depletions
- Discussion: We oppose in-basin diversions where water does not
return to river. Example: irrigation where large quantities are lost
through absorption or evaporation.
- Concerns about hydroelectric generation.
- Discussion: We took no position on this issue pending the
acquisition of additional information.
- Impacts of managing for recreation.
- Discussion: While supporting ecologically-sustainable
recreation in the Mo R basin, we recognize the need to regulate
recreational activities that negatively impact other values of the
river. Jet skis (”ski-doos”), large high-powered personal watercraft,
and other high-impact uses should be restricted to times or places
where least harm is caused.
- Concerns about Sturgeon fishing/harvest (inability of anglers to
identify Pallid from Shovelnose).
- Discussion: No position taken. Awaiting further information -
position to be established later
- Dredging - disruption of deposited sediment
- Discussion: While there exists dire need for redistribution of
sediments (see item 16 above), disruptions of sediments by dredging
presents potentially serious water quality concerns. As such, dredging
should only be undertaken ONLY when there will be NO negative impact on
water quality.
- We oppose the introduction of non-native species and support
efforts to reduce current populations that have been previously
introduced.
- Discussion: Wildlife and plants should not be introduced into
habitats where they are not native when introduction may have adverse
effects. Proposed wildlife and plant introduction and removals should
be prohibited until an adequate research study is completed that
indicates whether or not such action will have an adverse effect on the
natural ecosystem involved. The Sierra Club supports the removal or
control of non-native species and rehabilitation and restoration of
native ecosystems, unless it is no longer feasible to do so or there is
not a documented conflict with the native ecosystem. (National Sierra
Club policy adopted 12-10-94).
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