FLOOD01312

• County: Statewide
• Title: Multi-Objective Flood Mitigation Plan for Vermillion River Basin-South Dakota
• Date: 1/1/1994
• Prepared For: South Dakota
• Prepared By: FEMA
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

POTENTIAL SOl.UTION J-A
Reduce overumd drain'lgt irlto the klke by pro-
tn.ting existing, restoring ,Irained, and creating
nnv Wf'tlands. {This action would alro address
Flooding in the Vermillion River val1ey; set
Solution 2-C, page 16. It would address Loss of
Habitat for Wildlife; see Sollltion 2-A, page 28.
Tt wouM ad/lress High Rates of Agricultural

Runoff; s<< Solution loB, page 35. It would
adtiress Lack of Uncultivated Public Open Space~
see Solution 3-A. page 33.]
Insttlll ch<<k dams. tt'ntldng. and other best
management practices. {This action would alro
address Flooding in the Vermi//ion River valley;
see Solution 2-C, page 16. It would adtlrw Loss
of Agricultural Productivity from Flooding; see
Solutions '-Eand I-F,pages21 and 22. It would
address High Rates of Agricultural Runoff; see
Solutions J.e and I-G, pages 35 and 36.]

l'OTF.l'OTIAl SOU;TIO:-': J-n
Manage ltlke levt'ls by increasing the outlet
capacity or by pumping the water out and
~y. This would involve dredging a IS-mile-

long channel and using control structures to
protect downstream properties.
The lead could be taken by the S.D.
Department of Game, Fish and Parks. the S.D.
Department of Environment and Natural
Resources. the County Commissions, a
drainage distril1, or by a future basin-wide
water management authority.

Funding could be provided through
existing taxing authority, the drainage dis-
tricts, the Federal Emergency Management
Agency's Hazard Mitigation Grant Pro-
gram, or a future basin-wide water manage-
mentauthority.

POTENTIAL SOLUTION j-C
Minimize damage from flooding by adopting
and enfaTring zoning regulations, subdivision
regJ/ltltions. building codes. flood damage pre.
vention ordinances, drainage reglllations, mId
a uniform drainage code and/or plan. [This
action would also address Losses to Commer-
cial and Residential Property; see Solutio'l
2-A, page 23. It would address wck of

G

Comprehensive Floodplain and Watershed
Mdnagement ami Mitigation Planning; see
Solution J-E, page 16. It wouM address
Flooding in the Vermillion Rivtr valley; see
Solution 2-D, page 16.]

POTENTIAl. ~Ol.VTIOr..: 3-0
Allow nature to take its course.

POTENTIAl. SOI.UTION _\-1:
Some combination of the above measures,
also including acquisition and relocation of
flooded properties, as previously carried Ollt by
the state.

ISSUE 4

TRANSPORTATION/
ACCESSIBILITY PROBLEMS
DUE TO ROAD DAMAGE
FROM FLOODING

Several highways throughout the Basin
were dosed during the 1993 flood. some
for as many as 4 or 5 months. Roads were
overtopped, and bridges and culverts were