SOURCES SOUGHT
Z -- Ice Harbor Spillway Deflector Modification
- Notice Date
- 4/29/2010
- Notice Type
- Sources Sought
- NAICS
- 237990
— Other Heavy and Civil Engineering Construction
- Contracting Office
- USACE District, Walla Walla, 201 N. Third Avenue, Walla Walla, WA 99362-1876
- ZIP Code
- 99362-1876
- Solicitation Number
- W912EF-10-R-SS26
- Response Due
- 5/5/2010
- Archive Date
- 7/4/2010
- Point of Contact
- Jani Long, 509-527-7209
- E-Mail Address
-
USACE District, Walla Walla
(jani.c.long@usace.army.mil)
- Small Business Set-Aside
- N/A
- Description
- The Removable Spillway Weir (RSW) in spillway bay 2 at Ice Harbor Dam is the primary passage route for downstream migrating juvenile salmonids. The spillway slope at Ice Harbor is steeper than any of the other three dams on the Snake River, which are, in turn, steeper than the spillway slope at McNary Dam on the Columbia River. Biological tests and hydraulic models have shown that there is a potential for injury to some of the fish passing over the Ice Harbor spillway due to the steep slope and the abrupt transition to the surface of the existing spill deflector. The intent of this project is to resolve this condition. The magnitude of construction is between $1,000,000 and $5,000,000. The Contractor will be required to modify the spillway chute and the spill deflector in spillway bay 2 and add new, permanent extensions to the downstream end of the spillway piers between bays 1 and 2, and bays 2 and 3. The contractor will be required to isolate the construction area in the stilling basin and allow dewatering of the construction area in spillway bay 2 and set the bulkheads. Once the bulkheads are in place, the area between the steel bulkheads and the spillway surface or the existing spillway piers can be dewatered. Work on the spillway chute, deflector, and the pier extensions can then be accomplished in the dry. Some water leakage is usually present so pumping will likely be required throughout the construction period. The contractor shall use a combination of saw cutting, drilling, and splitting to remove some concrete from the face of the existing spillway, leaving a roughened surface for placement of the new concrete forming the flatter spillway chute, new spill deflector, and the new pier extensions. The removed concrete must be captured and not allowed to fall into the tailrace pool. The work includes drilling and grouting concrete anchors into the face of the spillway followed by installation of reinforcing steel. The contrator shall install concrete formwork and place concrete for the spillway chute, the spill deflectors and the pier extensions. All seepage water and other water from construction operations will be removed from the work area for appropriate treatment. Should the need arise to spill water during construction, any support barges outside of the work area will be removed. Depending on levels of spill, construction may continue since the construction area is isolated from the river. Work must be accomplished during the normal in-water work window on the Snake River, between December 15, 2010 and March 1, 2011. All new concrete must be placed with sufficient time for it to cure completely before court-ordered seasonal spill begins in early April 2011. The contractor will also be required to install Passive Integrated Transponder (PIT) tag antennas in slots formed across the spillway surface. The antenna design will require approximately four slots 4 to 6 deep by 5 wide with non-metallic cover plates covering the slots once the antennas are installed. The antennas, shielding material, and electrical components will be government-furnished equipment, but the contractor will need to furnish electronic and power cables and air ducts and install all cables, air ducts, and the government-furnished equipment. The new concrete added to the lower end of the spillway chute shall be deep enough to allow the contractor to create the lower slots entirely through forming and concrete placement. The contractor will be required to saw-cut and remove existing concrete to ensure the upper slots are deep enough for the antennas. Electronic cables and air ducts will run from the antenna slots in cableways formed into the new concrete or in trenches excavated into the existing concrete. The cableways will run out to the new concrete in the pier wall extensions and provide a route to connect the antenna slots to electronic components located in a service gallery within the dam at the spillway bridge level. Power cables will be run from an existing panel as close to spillway bay 2 as possible to provide power to the equipment in the gallery. This sources-sought announcement is a tool to identify HUBZone or Service-Disabled Veteran-Owned small business concerns with the capability to accomplish the work. Only these firms who respond to this announcement by submitting a statement of their current or past technical experience (what the firm has done) and current or past performance(how well the firm did it) similar to or the same as the requirements stated above, will be used in the determination whether to set aside this requirement. Include bonding capacity and a statement indicating your business is a HUBZone or Service Disable Veteran Owned small business concern to Jani Long, Contract Specialist, 201 North 3rd Avenue, Walla Walla, Washington 99362 or email responses to jani.c.long@usace.army.mil. Your response to this notice must be received on or before close of business on May 5, 2010.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/USA/COE/DACA68/W912EF-10-R-SS26/listing.html)
- Place of Performance
- Address: USACE District, Walla Walla 201 N. Third Avenue, Walla Walla WA
- Zip Code: 99362-1876
- Zip Code: 99362-1876
- Record
- SN02135474-W 20100501/100429234507-065b5185717f73e0b9c848955f4e72b7 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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