Specs - RSW Replacement Fenders.docx

TECHNICAL SPECIFICATIONS

LOWER MONUMENTAL DAM

Removable Spillway Weir Fender

1.0 INTENT

The following specifications pertain to the purchase of two (2) each leg fenders to replace a damaged leg fenders on the Removable Spillway Weir (RSW) at Lower Monumental Lock and Dam.

2.0 SCOPE

The Contractor shall be required to furnish and deliver two (2) each new marine leg fenders to Lower Monumental Lock and Dam by the date shown in the “Shipment and Delivery” section. The leg fenders shall be in new condition and not previously used.

3.0 RSW LEG FENDER SPECIFICATION

The RSW leg fenders must be invulnerable to long exposure to sunlight must be able to remain submerged in river water without degrading. These fenders must be able to handle extreme temperatures without deviation from function or lifespan.

3.1 Fenders shall have the following salient characteristics:

3.1.1 Uncompressed Height: 63” (Measured between flat end faces)

3.1.2 Compressed Height: 36” (Measured between flat end faces)

3.1.3 Length: 39-3/8”

3.1.4 Width: 39-3/8”

3.1.5 Mounting holes with clearance for 2” (or M56) Fasteners – Quantity four (4) total.

3.1.6 Mounting holes shall be 19-5/8” apart center to center.

3.1.7 Mounting hole pattern shall be centered along the Length dimension of the fender.

3.2 Fender material shall have the following salient characteristics:

3.2.1 Minimum Tensile Strength: 2000 psi (min)

(ASTM D 412)

3.2.2 Maximum Compression Set: 25 Percent (max)

(ASTM D 395 Method B, Maximum Percent 22Hr. at 158 Degrees F)

3.2.3 Ultimate Elongation: 300 Percent

(ASTM D 412)

3.2.4 Ozone Resistance: 100 Percent

(ASTM D 1171 Exposure Method A)

3.2.5 Low Temperature Impact Resistance: Non-brittle

(ASTM D 2137 Method A; 9.3.2, 3 min at -40 Degrees F)

3.2.6 Water Absorption: 10.0 Percent (max)

(ASTM D 471 Method B; 70hrs at 212 Degrees F; Volume Change plus/minus 10 percent)

3.2.7 Performance:

When vertically compressed at a rate of 5 feet per second by a plate extending the full length and width of the fender, the fender shall absorb 384,000 foot-pounds of energy +10 percent when 57 percent compressed (i.e., to a dimension of 57 percent of its original height) with a corresponding load of not more than 192,000 pounds +10 percent. These values are for one leg of a pair of fenders which are attached to a common mounting plate.

3.2.8 The fender shall be made from material that has been shown to rebound to 98% of original height within two hours of being compressed at a rate of 5 feet per second to 57% of its height.

3.2.9 Heat Resistance:

Change in tensile strength: -25 Percent max Change in ultimate elongation: -25 Percent max (ASTM D 573; 70hrs at 212 Degrees F)

3.3 Alternative designs or materials that meet the dimensional and material requirements will be considered.

4.0 SUBMITTALS

4.1 Pre-Award submittals:

Contractor shall submit with their quote, a copy of manufacturer’s specification sheets, brochures, illustrations, drawings, etc. for Government to review for technical acceptability. Proposal shall be of sufficient detail to show conformance to the specifications.

4.2 Pre-Manufacturing submittals:

Contractor shall submit leg fender material properties for Government approval.

5.0 Warranty

The leg fender supplied shall be covered by a minimum one-year warranty on all parts, labor, and workmanship from factory defects.

6.0 SHIPMENT AND DELIVERY

All items shall be delivered FOB to Lower Monumental Project within 22 weeks of contract award. The contractor shall be responsible for packing and shipping the components in a manner that will ensure undamaged and complete arrival to Lower Monumental Project. No shipments are allowed other than normal business hours of Monday-Thursday 7:00 a.m. to 4:00 p.m. PST, excluding federal holidays.

All shipments shall be delivered to:

Kahlotus, WA 99335