Loren Data's SAM Daily™

FBO DAILY ISSUE OF APRIL 23, 2011 FBO #3437
SOLICITATION NOTICE

Z -- CLEAN THE DE-ICING NOZZLES FOR THE USACE AT GAVINS POINT PROJECT

Notice Date

4/21/2011
 

Notice Type

Presolicitation
 

NAICS

541990 — All Other Professional, Scientific, and Technical Services
 

Contracting Office

USACE District, Omaha, 1616 Capital Ave, Omaha, NE 68102-4901
 

ZIP Code

68102-4901
 

Solicitation Number

W9128F-11-Q-G008
 

Response Due

5/6/2011
 

Archive Date

7/5/2011
 

Point of Contact

MONICA DWYER, 402-667-7873
 

E-Mail Address

USACE District, Omaha
(monica.e.dwyer@usace.army.mil)
 

Small Business Set-Aside

Total Small Business
 

Description

POC: BRYAN J. BRADLEY @ 402-667-2560 or bryan.j.bradley@usace.army.mil. PERFORMANCE WORK STATEMENT Clean Deicing Nozzles at Intake and Inspect Trash Racks Gavins Point Dam Yankton, SD Table of Contents INTRODUCTION 1.DESCRIPTION 2.GENERAL SCOPE OF WORK 3.SITE CONDITIONS 4.MEETINGS 5.DISCOVERY OF UNKNOWN CONDITIONS 6.SUBMITTALS 7.SAFETY 8.SITE VISIT 9.QUALITY ASSURANCE & DAILY REPORTS 10.FINAL REPORT 11. OPTION 1 BIDDING SCHEDULE INTRODUCTION The Gavins Point Dam Intake structure contains a deicing bubbler system to maintain open water around the structure during winter months. Operation of the system prevents ice-load stresses on the structures and clogging of the trash racks due to ice formation. A number of nozzles are known to be clogged or possibly damaged resulting in freeze up of the emergency gate and service gate slots. Dive work will be required within this scope. Cleaning the nozzles in the emergency gate and service gate slots will require divers to lower from a contractor supplied hoisting assembly that will be placed across the top of each opening. Cleaning of four nozzles in each slot located downstream of the trash racks will not be required due to their inaccessibility. Cleaning will involve removal of flanged air nozzle assemblies and bringing the nozzles to the surface for cleaning such as drill-brushing the 1/2 line and 1/8 orifice in the nozzle. Brushing the inside of the 1/2 supply line to each nozzle will also be required. 1.DESCRIPTION 1.1General: The deicing system consists of air compressors, receivers, and compressor valving/controls located in the structures. The flanged air nozzle assemblies are attached to an anchor flange with four (4) 1/2-13NC-2 thread bolts. 1.2The Intake Structure consists of nine intake slots and a total of 102 nozzles to be cleaned. 1.3See attached drawings for specifics. Larger and more detailed drawings are available at the US Army Corps of Engineers Gavins Point Project Office, SD. 1.4The normal operating pressure for the de-icing bubbler systems is 16 to 18 psi. 2.GENERAL SCOPE OF WORK 2.1The Contractor shall provide all of the necessary personnel and equipment to perform the work in accordance with this Scope of Work and attached Specifications Section 01080. 2.2The work will be accomplished using surface-supplied air (SSA) and a dive crew will be manned as prescribed in EM385-1-1 (15 SEP 08). 2.3The Contractor shall provide primary and emergency air supply, dive suits, hoses, lines, and all other related diving and safety equipment necessary for the work. 2.4Hardwire communications with the divers is required at all times and all communications with the divers shall either be recorded or complete notes of the conversations shall be taken. 2.5The work associated with this scope of work involves: removal, cleaning, and reinstallation of all flanged air nozzles and cleaning the respective bubbler supply pipes. 2.5.1Removal of the flanged air bubbler nozzles: The flanged type bubbler nozzles are bronze castings. The nozzle is attached to a bronze anchor flange with four naval brass diameter hex head bolts and copper washers. The Contractor shall use wrenches and other approved hand tools to remove the bubbler nozzles. 2.5.2Removing silt and debris from the bubbler supply pipes: After the Contractor has removed the nozzles from a control valve pipe section the Contractor shall notify the Government Representative. Upon notification, Government personnel will isolate the bubbler section using the control valve station, and pressurize or blow low pressure air through the section. While Government personnel are pressurizing the section, the Contractor will clean out the bubbler supply pipes with a same size diameter wire brush. The nozzle piping shall be cleaned as far as reasonably possible to the first tee or elbow. Once the supply pipes are clear of all silt and debris, the Contractor shall notify the Government Representative. Upon receipt of notification, Government personnel will remove the pressure from the section. 2.5.3Cleaning the nozzles: The Contractor is required to bring all nozzles to the surface for cleaning and to be inspected by the Government Representative. All nozzles contain a short tube 1/8 orifice. Each nozzle has a 1/8 diameter discharge opening located on the bottom side of the nozzle. The Contractor shall use a small drill bit or similar round wire to clean the silt and debris from the discharge opening. The Contractor shall visually inspect the nozzle for damage and accumulation of debris. The Contractor shall clean debris from the nozzle interior using a same size diameter wire brush, and report any cracked or damaged nozzles to the Government Representative. 2.5.4Reinstallation of the nozzles: After each bubbler section and corresponding nozzles have been cleaned of silt and debris, the Contractor shall reinstall the nozzles with the discharge opening directed down. 2.5.5If removed nozzle is unserviceable, the Contractor will notify the Government Representative to approve installation of a new nozzle. 2.5.6Lowering of personnel using the hoisting assembly will be conducted with requirements as outlined in EM385-1-1(15 SEP 08) with emphasis on Section 21.H Personal Fall Protection Systems and Specifications Section 01080. 2.6Work Schedule: 2.6.1The work associated with this contract must be completed by September 30, 2011. The date of the contract work shall be coordinated with the Gavins Point Project and the Omaha District Dive Coordinator. The information required to be submitted for approval prior to the dive shall be received by the Omaha District Dive Coordinator a minimum of two weeks prior to beginning the dive work. 2.6.2The work shall be conducted between the hours of 7:00am and 5:00pm on the dates scheduled. 3.SITE CONDITIONS 3.1The location of the work site is located at the powerplant on Lewis and Clark Lake on the South side of the lake. The intake structure is part of the powerplant and consists of nine intake slots. 3.2Anticipated Conditions at Dive Site/Gate 3.2.1Weather: Varies; typical spring weather for South Dakota. 3.2.2Water Conditions: Lake elevation stays fairly constant between 1206 and 1208. 3.2.3Visibility: Depends on wind conditions but water is normally dirty providing for poor visibility. 3.2.4Type of Bottom: Silt 3.2.5Depth: 55' 3.2.6Currents/Turbulence: Calm, units will be shut down. 3.2.7Air Temperature: Expected to be between 40 and 70 degrees Fahrenheit during fall months 3.2.8Approximate Water Temperature: 40 F to 50 F during the months of September to October. 3.2.9Obstructions/Underwater Hazards: Could be extensive sunken limbs and trees in trash rack. 3.3Electrical Service: The Project will supply electrical power for the contract. There is 480-volt, 3-phase, 30-amp or 120-volt, single phase, 20-amp power receptacles available. The Contractor will supply all power cords and load centers that are necessary to connect into these receptacles. 4.MEETINGS 4.1Pre-dive: A pre-dive conference shall be held at the powerplant to discuss the Dive Operations Plan, AHA, and Emergency Plan and any modifications needed. The pre-dive conference will be attended by a Government Dive Inspector. A representative of the Contractor with sufficient authority to implement any changes shall attend the pre-dive conference meeting. 4.2Post-dive: A post-dive debriefing will be held at the Project Office to review what was discovered and for the Contractor and the divers to give additional details found during the work. 5.DISCOVERY OF UNKNOWN CONDITIONS 5.1The Contractor shall immediately notify Government personnel of conditions that adversely effect productivity in meeting the work schedule. 5.2Upon discovery of conditions beyond this Scope of Work, the Government has the option to cease work and make fair and reasonable payment for work completed. 6.SUBMITTALS Two copies of the following submittals shall be provided to the District Diving Coordinator (DDC) or Alternate Diving Coordinator (ADC) at least ten (10) business days prior to the commencement of diving operation. See Specification Section 01080, Paragraph 1.6.1 for mailing address. 6.1Safe Practices Manual (Pre-qualified by DDC & DSR) 6.2Dive Operations Plan (Site Specific) 6.3Activity Hazard Analysis (AHA) (Site Specific) 6.4Emergency Management Plan (Site Specific) 6.5Hoisting Assembly Technical Data 6.6Dive Personnel Qualifications and Training Certificates 6.7Flanged Nozzle and Supply Tubing Cleaning Plan (Work Plan) 6.8Close Out Report (following completion of work) 7.SAFETY 7.1The Gavins Point Project will close all effected Intake gates and place them under lock out/tag out procedure within the work boundaries. 7.2The Contractor shall follow all safety requirements noted in Safety and Health Requirements Manual EM385-1-1 (15 SEP 08) and by the Government Dive Inspector. 7.3All personnel, Contractor and Government employees shall be safety conscious, stopping any activity that may pose a threat to the safety of any person on site. 8.SITE VISIT 8.1All prospective bidders are encouraged to make a site visit to evaluate the site conditions. 8.2Site visits can be coordinated by contacting Bryan Bradley at 402-667-2560. 9.QUALITY ASSURANCE & DAILY REPORTS 9.1The Contractor shall provide a daily verbal report to the Government Representative; including the minimum of dive team member physical condition and nozzle locations completed. 9.2Final approval and acceptance of the work shall be coordinated with Government Representative. 10.FINAL REPORT 10.1The Contractor shall provide a written report within 30 days after completion of the work. The report shall include a description of the dive (including copies of the diver logs) and detailed sketch and written report showing exact locations and extent/type of work accomplished. 11. OPTION 1 - TRASH RACK INSPECTION 11.1 Under this option, the contractor shall be required to physically inspect the nine intake trash racks. If water clarity permits, the trash racks will be videotaped and a copy provided to the government. If water quality does not permit videotaping, the racks shall be inspected by hand and a log of the inspection recorded and a final report provided to the government. It can be anticipated there will be numerous logs and tree fall stuck in the trash racks so the inspection will only include what can safely be inspected. Technical POC for this contract is: Bryan Bradley Chief, Technical Support Section Gavins Point Project U.S. Army Corps of Engineers Omaha District 402-667-2560 Email: bryan.j.bradley@usace.army.mil
 

Web Link

FBO.gov Permalink
(https://www.fbo.gov/spg/USA/COE/DACA45/W9128F-11-Q-G008/listing.html)
 

Place of Performance

Address: US ARMY CORPS OF ENGINEERS, GAVINS POINT PROJECT 55245 HIGHWAY 121 CROFTON NE

Zip Code: 68730
 

Record

SN02430203-W 20110423/110421234618-a50ad1e4d940c322508a06edd628c1c7 (fbodaily.com)
 

Source

FedBizOpps Link to This Notice
(may not be valid after Archive Date)

---

| FSG Index  |  This Issue's Index  |  Today's FBO Daily Index Page |