SOURCES SOUGHT
Z -- Dam Maintenance Dewatering Structure at the Montgomery Point Lock & Dam, Arkansas Post, White River, Arkansas
- Notice Date
- 2/5/2008
- Notice Type
- Sources Sought
- NAICS
- 237990
— Other Heavy and Civil Engineering Construction
- Contracting Office
- USACE Little Rock District, 700 West Capitol, Little Rock, AR 72201
- ZIP Code
- 72201
- Solicitation Number
- W9127S08R0001
- Response Due
- 2/20/2008
- Archive Date
- 4/20/2008
- Point of Contact
- Dudley Smith, 501-324-5720
- E-Mail Address
-
Email your questions to USACE Little Rock District
(dudley.a.smith@us.army.mil)
- Small Business Set-Aside
- N/A
- Description
- SOURCE SOUGHT NOTICE for trial in-water installation of the already procured Montgomery Point Lock and Dam hinged crest gates maintenance dewatering structure (MDS) in each of the two designated positions at the site and perform other related work in accordance with the Scope of Work contained herein. The purpose of the MDS is to facilitate isolation of five (5) out of the total ten (10) hinged crest gates at a time for inspection, maintenance, and replacement, as needed. Respond no later than 20 Fe bruary 2008. In addition to and before the two trial installations, the Contractor shall perform one pre-trial in-water installation to troubleshoot any problems. The MDS was previously installed in one of the its two designated positions at the s ite in the dry in 2003, before the project was commissioned, and verified with respect to the completeness of all needed components and the fit of various components After trial installation in the dry, the MDS was dismantled and various components stored. The Montgomery Point Lock and Dam, located near the confluence of the White River with the Mississippi River, include a gated navigable pass, an overflow spillway, and a lock. The gated navigable pass is made up of ten, approx. 30-ft wide by nomin ally 13-ft high hinged crest gates (actual structural height of the gates is approximately 18 ft.), which are raised and lowered as required to maintain upstream navigable depths on the White River Entrance Channel. The purpose of the MDS is to isol ate the hinged crest gates for inspection / maintenance / replacement in a dewatered environment, without disrupting the river traffic. The MDS can be used for maintenance of five (5) hinged crest gates at a time, in two different installation positions o f the MDS. MDS Installation Position 1 permits the dewatering for Gates 1 through 5 (and partially Gate 6), and Installation Position 2 dewatering of Gates 6 through 10 (and partially Gate 5), Gate 1 being closest to the lock wall and Gate 10 being adjace nt to the navigable pass abutment pier. The MDS consists of the following main components: a. Four (4) column clusters - 2 upstream (1 end and 1 middle) and 2 downstream (1 end and 1 middle). The maximum weight of any of these structures is 67,5 20 lbs. The downstream clusters are taller than the upstream clusters, because of different bottom elevations. Each of four-legged clusters shall be installed in their respective receptacles formed in the ogee and wedged (using hydraulic cylinders mounted on the clusters) in place to resist the water pressure on the installed structure. b. Four (4) tie braces (2 for each pair of upstream and downstream column clusters) between the upstream and downstream column clusters to maintain proper distance and to assist in the stability of the column clusters. The maximum weight of any of these structures is 2000 lbs. c. Four (4) support beams - 2 upstream (1 short and 1 long) and 2 downstream (1 short and 1 long), supported by the column clusters and by recesse s provided in the lock wall or abutment pier (depending upon installation position). The maximum weight of any of these structures is 76,780 lbs. d. Eighteen (18) hinged needle panels - 9 upstream (1 left end, 1 right end, and 7 intermediate) and 9 do wnstream (1 left end, 1 right end, and 7 intermediate). The downstream needle panels are taller than the upstream needle panels. The maximum weight of any of these structures is 39,200 lbs. The needle panels are connected by hinges to the support beam s at the top and supported at the bottom by sill plate installed on a concrete ledge. The hole of the hinge is larger than the hinge pin to permit the needle panel to move up as it hits the sill plate; this would also facilitate easier removal of the needl e panels after their use. The needle panels are sealed against the sill and against one another along the sides. The end panels also seal against the concrete walls and against the parallel bulkhead. To prevent the needle panels from slamming against the concrete ledge at the bottom, each panel shall be restrained by a tagline connecting the panel to a winch on the handling barge. e. Two (2) sets of parallel b ulkheads (opposite of each other), parallel to the flow direction, each containing three sections (bottom, middle and top). The maximum weight of any of these structures is 54,000 lbs. The bottom section of the bulkhead is profiled to seal against the pro file of the lowered hinged crest gate (either gate number 6 or gate number 7, depending on the installation position), the concrete ogee, and against the needle panels on the sides. Seals are also provided between the bottom and middle sections and between middle and top sections. All three sections of the bulkhead are equipped with Hilman rollers which interface with rails mounted on the column clusters. For each MDS installation only one of the bulkhead sets (depending upon installation position) is ne eded. f. One (1) temporary cofferdam to be installed under flow conditions around one cluster receptacle, at a time to allow for access to the receptacle for cleaning it for proper placement of the column cluster. The weight of this structures is 25,600 lbs. Before access to the receptacle, the inside of the cofferdam needs to be dewatered by the use of one or more temporary dewatering pumps. , The temporary cofferdam is equipped with rubber seals and Orkot bearing pads at the bottom. The position of t he temporary cofferdam will be set using distances from the abutment walls shown on the reference drawings. The cofferdam, when installed on the upstream side, is to be stabilized in its installed position by two retention arm engaging with the hook pin em bedment in the upstream face of the navigable pass. The cofferdam, when installed on the downstream side, will be supported at the bottom against support pedestals anchored to the concrete floor downstream of the crest gates, and at the top by slings secu red to the already-installed upstream column clusters. One (1) semi-automatic lifting beam to handle each parallel bulkhead section. The lifting beam is also guided by the rails installed on the column clusters. This is tentatively a FY 2008 fis cal year award. The US Army Corps of Engineers (USACE) is seeking industrial capability and input from interested parties prior to issuing a solicitation. This program is not restricted and is open to both large and small business participation under NAI CS codes 237990. It is intended to reach as many interested parties as possible. USACE encourages small business joint ventures or team arrangements. Obtain additional information and guidance from your Small Business Administrative Office. Currently, a determination has not been made for the project to be a set-a-side. Request that you respond by email to emailing Dudley Smith, Contract Specialist at Dudley.A.Smith@us.army.mil. The email must contain the following information: W9127S-08-R-0001 Source Sought Notice, Firm Name, CAGE Code or Duns Number, Business status, Firm Address, point of contact information, Email addresses, Phone numbers.
- Web Link
-
WWW.FedTeDS.gov
(https://www.fedteds.gov/fedteds/start.nsf/frm.vendorlogin?openform&SolicitationNumber=W9127S-08-R-0001)
- Place of Performance
- Address: USACE Little Rock District 700 West Capitol, Little Rock AR
- Zip Code: 72201
- Country: US
- Zip Code: 72201
- Record
- SN01500495-W 20080207/080205224258 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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