A02_SOW_HDPE_Pipe_Liners.pdf

HDPE PIPE LINERS

Supply & Installation at Various Locations in AR, LA, & MS

Within MVK for the U.S. ARMY Corps of Engineers

The USACE, Vicksburg District has a requirement to rehabilitate existing gravity drainage structures by slip lining the existing corrugated pipes with high density polyethylene (HDPE) pipe. Cast in Place Liners are not acceptable.

GENERAL DESCRIPTION OF LINERS.

0001 HDPE Pipe liners.

General.

The HDPE pipe-liner, grout, and materials supplied under this contract shall be new. The HDPE pipe shall meet the requirements of ASSHTO M326. The pipe and fittings shall be fabricated from polyethylene (PE) resin compounds conforming to cell class PE345464C with a designation of PE 3408 and a minimum dimension ratio (DR) of 32.5 as specified in ASTM D 3350. The criteria for the pipe to be lined are provided below. All dimensions shall be field verified by the contractor. The pipe manufacturer shall have a representative onsite to ensure proper installation and grouting procedures. The pipe-liner shall be solid wall construction, have a smooth interior and exterior surface with no corrugations, have mechanical end connectors, have a minimum section length of 10 feet but not to exceed 50 feet and be self supporting with the above conditions and designed for ‘fully deteriorated pipe’. Overall, the hydraulic cross-section shall be maintained as large as possible. The liner shall have a minimum of the full flow capacity of the original pipe before rehabilitation. The pipe joints shall meet the requirements of ASTM D 3212 and shall be water-tight. The existing pipe shall be cleaned of dirt and debris and a mandrell pulled through the pipe prior to HDPE pipe installation. The pipe-liner shall be installed in accordance with ASTM F 585. The space between the existing pipe and HDPE liner shall be grouted to seal the annular space. The grout shall be a cellular type grout with a density between 60 and 80 pounds per cubic foot with a minimum compressive strength of 300 psi at 28 days.

Venting of the annular space will be necessary to assure uniform filling during the grouting operation. The pressure on the annular space during the grouting process shall be limited to prevent damage to the pipe-liner.

The gauged grout pressure shall not exceed that of the pipe manufacturer’s recommendation or 5 psi, whichever is smaller. Regardless of the pressure, the contractor shall be responsible for any damage or distortion to the pipe-liner due to grouting. Upon completion of the structural rehabilitation, the pipe shall be inspected in accordance with the above ASTM standards. A camera specifically designed for such purposes shall be used during this inspection. A color video recording shall be made and provided to the COR for acceptance.

LOCATIONS OF STRUCTURES TO BE LINED.

The locations are within the Vicksburg District drainage basins located in the States of Louisiana, Arkansas, and Mississippi. The work in Louisiana lies in Catahoula and Concordia Parishes along levees within the Red River Backwater area which spans from Jonesville, LA, to Larto Lake on the west side of the Ouachita Black River, and, on the east side of the river from Wildsville, LA, to ACME, LA, and extending along the red river backwater levee to the intersection of the Red River levee and the Mississippi River Levee. The locations within the red river backwater levees also include from Jonesville, LA, northward to Sicily Island, Clayton and Waterproof, LA.

The work in Arkansas is in the general area of Southeast Arkansas including Jefferson, Lincoln, and Arkansas Counties, AR, along the Arkansas River.

In Mississippi, the work will be in the Mississippi Delta region bounded by the Mississippi River Levee to the hill line that extends from Vicksburg, to Yazoo City, to Greenwood, to Marks, Mississippi.

Pre-work Meeting and Schedule:

The supplier must contact the COR within 24 hrs of contract award and arrange a pre work meeting to occur within 3 days of award. The meeting will include the product installation process. A Notice-To-Proceed will be issued by the COR after the pre-work meeting. The work shall be completed within 90 days of contract award.

Preparatory Work:

The bidder is responsible for performing all preparatory dewatering work. The preparatory work may include the placement of temporary earthen cofferdams to prevent storm water from running through or backing into the existing pipe structure. The work may also require the removal of water, mud, dirt, rock, and debris from the existing pipe prior to HDPE liner installation to facilitate a complete annular grout seal between the host pipe and the liner.

Submittals:

The contractor shall submit information verifying that the product and installation technique meet the requirements of this solicitation.

The contractor shall be responsible for estimating grout quantities and measuring actual grout volumes pumped.

These estimates and actual volumes shall be recorded and provided to the government representative.

The contractor shall demonstrate previous experience by submitting a description of work experience including the dates of past performance and experience in pipe lining type work.

If the following submittals are not received the bidder will be deemed non-responsive:

1. Submittal 1 - Experience:

Contractor is to provide experience in installing HDPE pipe through a levee or dam. Must provide:

a. Names and experience of personnel

b. Dates and locations of previous installations

c. Levee or Dam owner contact information from two previous jobs.

2. Submittal 2 - Certification letter:

Contractor installing the HDPE liners must provide a certification letter from the manufacturer verifying the contractor’s capability in properly installing the manufacturer’s HDPE product.

3. Submittal 3 - Materials:

Contractor must provide adequate documentation proving the materials to be supplied (HDPE and grout, etc) meet the minimum quality required by the technical specifications.

4. Submittal 4 - Pre-installation Plan:

Contractor must submit his installation plan/procedure and prove it meets the specification and manufacturer’s recommendation for installation. The installation plan must include:

a. A drawing for each pipe to be lined showing the plan view and the cross section of the grout tubes, existing pipe, bulkheads, and new pipe liner. This drawing shall indicate the existing pipe location by decimal degree coordinates and levee station name, the existing pipe diameter and length, liner diameter and length, diameter and length of each grout tube and vent tube, the grout mix design, the estimated volume of grout required to fill the annular space, and the means by which the contractor will measure the actual grout volume required to fill the annular space.

5. Submittal 5 - Pre-installation video:

Contractor must submit a video that clearly documents the condition of the existing pipe after all mud, dirt, gravel, rock, and other debris has been removed and prior to the installation of the HDPE liner. The USACE shall review the video and confirm the pipe is clean prior to the contractor installing the liner.

The video shall be of sufficient quality and clarity with regards to lighting, steadiness, adequate camera speed, and focus, such that all joints and flaws can be clearly observed in the video.

6. Submittal 6 - Completed installation report:

Contractor must submit a report for each installed liner that contains the information from submittal 4 for each pipe location with the addition of the actual amount of grout pumped into the annular space between the existing pipe and the HDPE liner. This report must also document any difficulties encountered during the installation and grouting process.

7. Submittal 7 - Post-installation video:

Contractor shall submit a post-installation video showing the condition of the inside of the installed HDPE liner after installation. The video shall be of sufficient quality and clarity with regards to lighting, steadiness, adequate camera speed, and focus, such that all joints and flaws can be clearly observed in the video.

SECURITY REQUIREMENTS. The following security measures may be required in the event the contractor must access an Army controlled installation, facility or area. For example, an Army controlled installation means the Vicksburg District Headquarters, the Harbor facility, or other areas controlled by security personnel or electronic security systems. Areas such as levees do not fall under this requirement.

All contractor and all associated sub-contractors employees shall comply with applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative). The contractor shall also provide all information required for background checks or background investigation and to meet installation/facility access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office. Contractor workforce must comply with all personal identity verification requirements as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any installation or facility change, the Government may require changes in contractor security matters or processes.

All contract employees, including subcontractor employees who are not in possession of the appropriate security clearance or access privileges, will be escorted in areas where they may be exposed to classified and/or sensitive materials and/or sensitive or restricted areas." Levees are not security restricted areas.

The Contractor must pre-screen Candidates using the E-verify Program (http://www.uscis.gov/e-verify) website to meet the established employment eligibility requirements. The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to enrollment to ensure the correct information is entered into the E-verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award. *When contracts are with individuals, the individuals will be required to complete a Form I-9, Employment Eligibility Verification, with the designated Government representative. This Form will be provided to the Contracting Officer and shall become part of the official contract file.

MAIN STEM PROJECT - PIPE LINER

WORK

Yazoo River, LB, Tchula Lake

Bee Lake to Belzoni

ITEM STATION COORDINATES DIAMETER LENGTH

‘FEET’

DIAMETER

(IN)

Unit Price AMOUNT

1 1772+15 33.081885 -90.4294466 54" CMP 52.10 48

2 1848+06 33.0612838 -90.42635 48" CMP 58.50 42

Belzoni to Snake Creek

3 1129+46 33.173525 -90.4847716 18" CMP 67.00 14

4 1192+08 33.15892 -90.4929933 24" CMP 102.00 20

Supply & Installation Delivery MainStem, YR, LB, Tchula Lake Total