PD - SMCF-SPEC_VBS _Mesh - Final (2).docx

PURCHASE OF VERTICAL BARRIER SCREEN

Lower Granite Lock and dam Pomeroy, WA 99347

1. DESCRIPTION: This is a supply contract to purchase Vertical Barrier Screen mesh. The contractor is responsible for maintaining the product’s condition as specified until the point of acceptance. Contractors must supply the Vertical Barrier Screen in sizes and quantities specified to satisfy the requirements. New equipment only; no remanufactured or “gray market” items. All materials must conform to the “Buy American Act” (DFARS 252.225-7001). All items must be covered by manufacturer’s warranty.

2. ACCEPTANCE: The place of acceptance is at the delivery location. The Government will inspect the VBS mesh for quantity, damage in transit, and possible substitution or fraud. A visual inspection by Government receiving personnel will be conducted to verify adherence to stated material, dimensional specification, and contract requirements. Correction or replacement requirements identified prior to acceptance shall be at no cost to the Government.

3. VERTICAL BARRIER SCREEN (VBS) MESH PANELS MUST MEET THE MINIMUM SALIENT CHARACTERISTICS AS FOLLOWS:

3.1. VBS Characteristics:

3.1.1. The plastic mesh screen must be polyester mesh woven from 1 mm (0.040 in) monofilament polyethylene terephthalate (PET), 5.84 X 5.84 mesh size.

3.1.2. Each monofilament must have a minimum tensile strength of 80 pounds and minimum elongation at break of 20 percent.

3.1.3. The material must be suitable for use in cold weather and shall be "heat set" at approximately 170 degrees Celsius (347F) so that it remains primarily dimensionally stable when subjected to temperatures up to 200 degrees Fahrenheit.

3.1.4. The mesh monofilaments must be white in appearance.

3.1.5. All strands must run the full "width" (as labelled on the drawing) of the panel without splicing.

3.1.6. It is preferred that all strands run the full "height" (as labelled on the drawing) of the panel without splicing.

3.2. Splicing Restrictions:

3.2.1. If splicing is unavoidable, it must strictly comply with the following:

3.2.1.1. There must be no more than a single splice.

3.2.1.2. The splice must be oriented along the width and shall coincide with one of the reinforcing sections per the attached drawings.

3.2.1.3. The splice must be fully encapsulated within the reinforcement adhesive and shall have a tensile strength greater than or equal to the monofilament material.

3.3. Reinforcement Minimum Requirements:

3.3.1. The vinyl edging and reinforcement support strips covering the mesh panels must be an adhesive equal to 3M Hot Melt 3764.

3.3.2. Must be thick enough to cover the plastic mesh screen and thereby completely encapsulate it, with a 0.035-inch minimum thickness covering the mesh on each side.

3.3.3. Edging material must cure firm and have an overall finished thickness not to exceed 0.100".

3.3.4. Reinforcement strips must be applied to both sides of the mesh at all locations.

3.3.5. Dimensions shown for perimeter edging and reinforcement strip locations are to the "critical edge"; applied reinforcement strips must fall where dimensioned after application is completed.

3.3.6. All dimensions shown on this sheet must be met within plus/minus 1/8" typical.

3.4. VBS MESH PANEL 1 - 7 (CLIN 0001)

3.4.1. All physical dimensions shall be per attached drawing figure 3 of 4. A quantity of 21 shall be required.

3.5. VBS MESH PANEL 8 (CLIN 0002)

3.5.1. All physical dimensions shall be per attached drawing figure 4 of 4. A quantity of 3 is required.

3.5.2. Panels 8 must have a unique visual identifier from panels 1-7. This should allow quick visual identification from warehouse storage among panels 1-7.

4. PRE AWARD SUBMITTALS: For consideration descriptive materials must be submitted prior to award to determine whether the products being offered meet or exceed all the required specifications. Submittals shall include, but not be limited to, specification sheets, manufacturer certifications, and warranty information. Failure to submit adequate supporting documentation may result in disqualification of proposed bid.

5. POST AWARD – PRE FABRICATION: Prior to fabricating the VBS mesh panels, submit a 24” x 24” sample swatch of the plastic mesh fabric with vinyl edging strips (one 3-1/2” wide and the other 7” wide) on 2 adjacent edges and a vinyl support strip (9” wide) running down the center, from edge to edge and a sample splice.

6. DELIVERY LOCATION: All items must be delivered FOB Destination within 30 weeks following contract award. The contractor is responsible for maintaining the product’s condition to the delivery location. No shipments are allowed other than normal business hours of Monday through Thursday 0700 – 1500hrs, excluding Fridays and federal holidays.

U.S. Army Corps of Engineers Lower Granite Lock and Dam 885 Almota Ferry Road Pomeroy, WA, 99347

**Special Delivery Instructions** Holidays: If a holiday falls on a Friday or Saturday the preceding Thursday will be observed, if a holiday falls on a Sunday the following Monday will be observed. Lower Granite Dam’s receiving area is located on the south side of the Dam.

Receiving Area: The delivery location is located on the south side of the Dam. Trucks and trailers over 40 feet in length are not permitted to cross the Dam from the north side and will be rerouted, which takes approximately 2.5 hours.