B08_-_ATT_1_-_Klamath_Sucker_Net_Pen_Rearing_Scope_of_Work_4_pgs.pdf
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- Attached to
- OR- KLAMATH FALLS FWO-FISH NET REAR SYS
- Solicitation number
- 140F0S26Q0030
About this file
This is a Scope of Work (SOW) for the construction and installation of net pen systems for the Klamath Falls National Fish Hatchery to support the rearing and acclimation of endangered Lost River and Shortnose Sucker populations in the Upper Klamath Basin.
The SOW specifies two identical net pen systems, each consisting of a 120' x 25' fish pen frame, a 25' x 59' x 15' fish net package, anchor systems, and wave attenuator packages. The fish pen frames feature dual 18" HDPE pontoons, non-treated Douglas fir lumber (2x6 and 2x8), 1.5" x 1.5" fiberglass decking, a 40" removable rail system, and both perimeter and center walkways. Fish net packages include 0.25" x 0.25" polyester mesh, 3/8" polyester framing lines, 5/16" chain around bottom perimeters, and 2" x 2" black twisted polyethylene bird netting with support lines. Anchor packages contain 16 concrete block anchors (1,650 lbs. each in-water weight), 3/4" galvanized chain, anchor crown line floats, six chain-through buoys with hardware, shackles, and reflective tape. Wave attenuator packages feature 24" x 50' DR17 HDPE pipe with 4' rubber skirts (20 lbs. per foot). Installation includes mobilization/demobilization, a 4-man crew, 12,000-lb forklift rental, boat/barge services, and complete assembly of pen, net, and anchor systems. Shipping requires three 48-foot flatbeds per pen. The systems must withstand freezing conditions up to 10" and impacts from floating ice chunks up to 10" deep. Identical specifications apply to Gerber Reservoir, with anticipated additional costs for increased travel distance and shipping to that remote location.
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Other files
| File | Type | Posted |
|---|---|---|
| Sol_140F0S26Q0030_Amd_0001.pdf | ||
| B08_-_140F0S26Q0030_-_Fish_Net_Pens_Klamath_Lake_OR_v2.pdf | ||
| Sol_140F0S26Q0030.pdf |
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Text version
Klamath Sucker Net Pen Rearing (1/4” mesh size) Scope of Work (SOW)
The Klamath Falls National Fish Hatchery is currently in the process of building a new hatchery program to help conserve and restore listed endemic sucker populations in the Upper Klamath Basin, including endangered Lost River and Shortnose Suckers. In addition to needing more rearing space to grow suckers to a larger size, we also need to provide areas for long term acclimation to wild lake environments, which data has shown leads to higher post stocking survival and greater persistence and long term repeat detections of individuals from year to year than simply raising and stocking directly from the hatchery.
Fish Pen systems (with the netting rolled up on the deck for storage) have to withstand freezing in the lake of up to 10” and survive impacts by floating ice chunks that are up to 10” deep
Upper Klamath Lake Net Pen Specifications
Fish Pen Frame
- 120’x 25’
- Dual 18” hdpe pontoons with 12” hdpe cross pipes.
- 4’ wide walkway around perimeter/24” walkway splitting pen in middle.
- 2x6 and 2x8 non treated Doug fir (or equivalent) lumber package for joists and facia.
- 1.5”x1.5” fiberglass decking.
- 40” tall removable rail system like Gerber Lake fish pen.
- anchor line attachment points
Fish Net Package
- 25’x 59’x 15’
- .25” x .25” 250/56 polyester side, bottoms and end panels.
- 3/8” polyester 12 strand framing lines
- 5/16” chain hung around perimeter of bottom panel (.98 lbs. per ft)
- 2”x2” 380/27 black twisted polyethylene bird netting
- 5/16” polyethylene bird lines for support
Anchor Package
- Qty 16, 1650 lb ea. in water weight concrete block style anchors
- ¾” galvanized anchor chain
- ¾” 12 strand anchor crown line floats
- Qty 6, 36”x 5’ chain through buoys and hardware (chain runs through center of buoy. yellow or black color)
- All shackles
- Reflective tape
Wave Attenuator Package
- 24”x 50’ DR17 hdpe pipe (yellow or black color)
- 4’ Rubber skirt with 20 lbs. per ft
- Would replace 2 anchor buoys on north ends
Installation Package
- Mob and de-Mob
- 4-man crew
- 12k rental forklift
- Boat/Barge
- Fish pen and net assembly
- Anchor system assembly
Shipping and handling
- Three - 48’ flatbeds per pen
Gerber Reservoir Net Pen Specifications
(These specifications are identical to what is outlined above for Upper Klamath Lake, but will be installed at a different water body and will likely have unique labor and costs associated with the increased travel and shipping distance to this more remote location.)
Fish Pen Frame
- 120’x 25’
- Dual 18” hdpe pontoons with 12” hdpe cross pipes.
- 4’ wide walkway around perimeter/24” walkway splitting pen in middle.
- 2x6 and 2x8 non treated Doug fir (or equivalent) lumber package for joists and facia.
- 1.5”x1.5” fiberglass decking.
- 40” tall removable rail system like Gerber Lake fish pen.
- anchor line attachment points
Fish Net Package
- 25’x 59’x 15’
- .25” x .25” 250/56 polyester side, bottoms and end panels.
- 3/8” polyester 12 strand framing lines
- 5/16” chain hung around perimeter of bottom panel (.98 lbs. per ft)
- 2”x2” 380/27 black twisted polyethylene bird netting
- 5/16” polyethylene bird lines for support
Anchor Package
- Qty 16, 1650 lb ea. in water weight concrete block style anchors
- ¾” galvanized anchor chain
- ¾” 12 strand anchor crown line floats
- Qty 6, 36”x 5’ chain through buoys and hardware (chain runs through center of buoy. yellow or black color)
- All shackles
- Reflective tape
Wave Attenuator Package
- 24”x 50’ DR17 hdpe pipe (yellow or black color)
- 4’ Rubber skirt with 20 lbs. per ft
- Would replace 2 anchor buoys on north ends
Installation Package
- Mob and de-Mob
- 4-man crew
- 12k rental forklift
- Boat/Barge
- Fish pen and net assembly
- Anchor system assembly
Shipping and handling
- Three - 48’ flatbeds per pen
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