SPOONFUL FARMS SIDE CHANNEL
PRELIMINARY DESIGN
Mid-Columbia Fisheries Enhancement Group
SRFB Proposal #17-1172
PROJECT OBJECTIVES
• To gain an understanding of groundwater and
surface water interactions through topographical
survey, groundwater monitoring, and flood
modeling on 70 -80 riparian acres on Spoonful
Farm by the summer of 2019; and
• To design treatments to increase the frequency
of side channel connection and floodplain
inundation by the fall of 2019.
TAG/CC Question, Request, or Comment
Clarify water rights and potential use to augment flows
in any new side channel.
Groundwater data would be valuable.
Unclear how long it is since existing channels were
regularly activated.
Response: Where / how is the comment addressed in
the final application
Private right: 1 cfs for 250 acre-feet/year
Cascade Irrigation District: 10gpm for 67 acres
April 15 – October 15
Currently being collected.
One channel is currently active, though the frequency of its
connection with the river is unknown.
Why would one expect side channel to be sustainable
here (inside of a meander bend)? Appears that old side
channels have filled in with floodplain deposits and new
channels would seem to be subject to same process.
This could be addressed in two ways: 1) aiming just for a
groundwater channel with no surface inlet, or 2) designing for
scouring flows at 5 yr floods (or so). Side channels up- and
downstream of this location show a similar distribution.
If sponsor is interested in a groundwater-fed channel,
provide an estimate of depth to groundwater (would be
easy to ballpark based on river stage) and approximate
volume of excavation required and resultant cost.
Groundwater depths will be available after CWU’s work (next
week), and can be incorporated into the final proposal.
In general, the proposal seems underdeveloped. Seems
like a lot of money to basically ask someone to come up
with an idea for what to do at site.
Please share your ideas for budgeting and proposal
strengthening at this early stage of project development. – we
are eager to develop this project further.
SRFB Technical Review Panel Question, Request, or
Comment
How will you evaluate sufficiency of groundwater?
What other considerations will drive channel location and
configuration (e.g. flow-through versus blind channels)?
Data collection tasks are mentioned in the objectives but
are not included in the scope of work. Each data collection
or analysis task should be listed as a separate item in the
scope of work and cost estimate.
Response: Where / how is the comment addressed in
the final application?
The reviewers’ suggestions to implement a groundwater
pump test and one year of well monitoring will be
incorporated into the proposal.
Channel location will aim to minimize excavation while
maximizing sustainability.
Provide additional detail in the scope of work. Include task, The project will result in preliminary design, and will provide
responsible party, deliverable, and schedule. . . The
the preliminary design deliverables listed in Manual 18:
proposal would be even stronger if the preferred alternative
preliminary design report, drawings, and cost estimate.
was developed to a preliminary design level.
The project offers the possibility of side channel rearing
habitat immediately adjacent to the Yakima River. The
sponsor has done an excellent job cultivating interest and
shepherding the energy of very enthusiastic landowners!
The partnership with Central Washington University will
also bring expertise that can add value to the project.
We are excited by the possibility of more rearing habitat, and
of enhancing existing rearing habitat.
Cost
SRFB Request
Match
Groundwater monitoring
$
10,000
$
-
$
10,000
Technical work group meetings, field data
collection, technical memo
$
16,000
$
16,000
$
-
Identify conceptual alternatives, filter,
create drawings
Site surveys for topography not avaialble
from LIDAR, bathymetry
Project management and bookkeeping
$
10,000
$
10,000
$
-
$
5,000
$
5,000
$
-
$
15,840
$
15,840
$
-
Modeling
$
3,000
$
3,000
$
-
Cultural resource literature review and field $
10,000 $
9,000 $
surveys
$
- project,
$
- $ of $25,000.
This just in! USFWS Partners funding
will also support, the
leaving a SRFB request
$
69,840
$
58,840
$
1,000
11,000