HomeMy WebLinkAboutRotary Screw Trap - SHR Application - 1/26/2007 �T
MASON COUNTY
DEPARTMENT OF COMMUNITY DEVELOPMENT
Courthouse Annex
P.O.Box 279,Shelton,WA 98584
(360)427-9670
SHORELINE PERMIT APPLICATION
PERMIT NO. SHORELINE SUBSTANTIAL DEVELOPMENT
SHORELINE VARIANCE
DATE RECEIVED SHORELINE CONDITIONAL USE
SHORELINE EXEMPTION
The Washington State Shoreline Management Act (RCW 90.58) requires that substantial developments within
designated shorelines of the state comply with its administrative procedures(WAC 173-14)and the provisions of the
Mason County Shoreline Management Master Program.The purpose of this Act and local program is to protect the
state's shoreline resources. The program requires that substantial development(any development of which the total
cost or fair market value exceeds$5,000.00 or materially interferes with the normal public use of the water or
shorelines of the State be reviewed with the goals,polices,and performance standards established in the Master
Program.
Answer all questions completely. Attach any additional information that my further describe the proposed
development. Incomplete applications will be returned.APPLICANT: 5K-Dk-DW1 , n 76 iX (e70 F'L&4-kelm IN "-P
ADDRESS: N p t't vl S� ;1r� n-111 L41JC�4-
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(street)
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(city) (sue) (zip)
TELEPHONE: (3100$+-- 5213 X S(g
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AUTHORIZED REPRESENTATIVE: t1y 'a h P,'j2?1CP4 t U (N AAA Flo 1CS J
ADDRESS: 13Os L7G6iG� �✓iy{ Cl1S�'
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TELEPHONE: l('D
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PROPERTY DESCRIPTION:
General location(include property address,water body and associated wetlands—identify the name of the
shoreline): I
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Legal description (include section, township, and range to the nearest quarter, quarter section or latitude and
longitude to the nearest minute. Projects located in open water areas away from land shall provide a longitude
location)-include all parcel numbers:
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OWNERSHIP: Contract
Applicant Owner Lessee Purchaser (Identify) Other
Owner.
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Development(identify and describe the proposed project,including the type of materials to be used,construction
methods,principle dimensions,and other pertinent information):
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Use(identify current use of property with exist improv nts:
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Reason for requesting development:
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ACKOWLEDGEMENT
I hereby declare,t e best my wl e d belief,the forgoing information and all attached information is
true and correct.
( li t or authorized repr ntative) (date)
TO BE LETED BY LOCAL OFFICIAL
Identify and describe existing features of the site and surrounding area:
Ifproposed structures will exceed a height of 35 feet above the existing grade level indicate the location of an
Sh L S Y
residential units that will have an obstructive view:
If a Conditional Use or Variance is requested,make reference to the appropriate section in the Master Program:
REVISED: 06-25-03
Project Background: Salmon and steelhead hatcheries in the Pacific Northwest
primarily provide fish for harvest. In the past decade,hatcheries have developed new
programs (termed `supplementation programs')with different goals: to aid in the
conservation and rebuilding of depleted natural populations. Results of a small-scale
supplementation project in the Hamma Hamma River suggest that the strategy of
collecting natural-origin embryos and rearing them for release at two different life-history
stages (smolt and adult) has substantially increased the number of redds constructed in
the Hamma Hamma River. This approach contrasts markedly with hatchery programs
commonly implemented in the past, which released large numbers of out-of-basin fish in
Pacific NW rivers, with many negative consequences. Though the strategy of
supplementation has proved promising in theory and in small-scale or laboratory
situations, a large experimental approach has not been taken. NOAA Fisheries has
undertaken a collaborative project which will look at the large-scale effects of
supplementation, as measured through the comparison of four treatment(Hamma
Hamma, Skokomish, Duckabush, and Dewatto)with three control (Dosewallips, Tahuya,
and Big Beef Creek) streams located throughout the Hood Canal region(Figure 1). One
key component to evaluating the benefits and impacts of supplementation is to measure
the abundance of juvenile production within each of these streams before, during, and
after treatment.
Project Description: Within the context of this project,we propose that a rotary screw
trap be installed in the Skokomish, Dewatto, Tahuya, and Duckabush Rivers (see Figure
1). A similar trap is already in operation on the Hamma Hamma River, and plans are
underway to install a trap on the Dosewallips as well,though timing for this action is not
certain. The trap is prefabricated and will be trailered into each site. In some cases, a
small crane may be required to relocate the trap from the trailer to the river site. Twenty-
two foot aluminum pontoons will hold the trap on the surface of the water, and an
attached cone (diameter= 8 ft)uses the hydraulic energy of the current to revolve on a
central shaft(Figure 2). The cone is situated halfway beneath the surface of the water,
and guides migrating juvenile salmonids into a flow-through trap box that is located
downstream of the cone (Figure 3). In this way, a certain percentage of fish are
enumerated and access is gained so as to obtain biological and genetic samples. After
target fish(Steelhead and Cutthroat)are separated from non-target fish(Chinook, Chum
and Coho), they will be lightly anesthetized and sampled. Cutthroat will be used for trap
efficiency tests in the event that large enough numbers of steelhead are not encountered.
Non-target fish will be released after enumeration. The trap will be operational between
the approximate dates of April 1 and June 1 (2007-2022), but may be installed earlier in
the year or removed later in the year than the planned dates (January—June 30).
ter:
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of rotary screw trap in place
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Proposed Skokomish Trap Location