Y -- FURNISH, PLACE, COMPACT, AND FINISH 10,250 TONS OF AGGREGATE BASE.

Notice Date

May 21, 2001

Contracting Office

Federal Highway Administration, Central Federal Lands Highway Division (HPA-16), 555 Zang St., Room 259, Lakewood, CO 80228

ZIP Code

80228

Solicitation Number

DTFH68-01-Q-00007

Response Due

June 12, 2001

Point of Contact

Aileen China, (303)716-2261

Description

This request for quotation is issued for project AZ RRP KOFA 10(1), Palm Canyon Road,in Kofa National Wildlife Refuge, Arizona. The project consists of the following: Scope of Work: Furnish, place, compact, and finish 10,250 tons of aggregate base on a prepared surface. Mobilize personnel, equipment, material, and incidentals to the project site and perform all work necessary before beginning work. Mobilization also includes the obtaining of permits, insurance, and bonds. The work is to be performed on Palm Canyon Road between Mileposts 3.4 and 7.3, a distance of 3.9 miles, which is the entire length of road that resides on Kofa National Wildlife Refuge land. The work is in Yuma County, Arizona. Palm Canyon Road intersects with U.S. Highway 95 approximately 51 miles northeast of Yuma, Arizona. Complete all work within 21 calendar days following the date of issuance of the Notice To Proceed. The Contractor is responsible for sources, including established commercial sources. Furnish hard, durable particles or fragments of crushed stone or gravel conforming to the size and quality requirements for aggregate base material normally used locally in the construction and maintenance of highways by Federal, State, or local agencies. Furnish crushed aggregate with a maximum size of 1 inch as determined by AASHTO T 27 and T 11. Furnish crushed aggregate uniformly graded from coarse to fine and free of organic matter, lumps or balls of clay, and other deleterious matter. Determine the quantity and types of equipment and work necessary to select and produce acceptable material. Secure all permits and clearances for use of the sources and provide copies of the documents. Provide laboratory test reports and available historical performance data indicating that acceptable material is available from the source. Do not use material from a source that is unacceptable to the Government. Dispose of unacceptable material and locate another source at no cost to the Government. Construction Requirements: Surveying: The Stationing shown in the plans was determined from odometer readings. Verify the "line diagram" stationing by measuring along the existing centerline with a measuring wheel or cloth tape. For this project, there is no computed centerline. Mark out a centerline to provide a best-fit alignment. Calibrate measuring wheel and furnish calibration data to the Contracting Officer before use. Use red spray paint to mark location of each 50-foot centerline station. At every 100-foot centerline station, place an offset stake outside the construction limit and label the stake with the station and offset distance from centerline. Use landmarks (e.g., culverts, turnouts, approach roads) to verify that the ground stationing matches the stationing shown on the Plans. Inform the Contracting Officer of any discrepancies between the staked centerline and the centerline shown on the Plans. Temporary Traffic Control: Prior to aggregate base placement, erect temporary traffic control signs as shown on the site map and Special 635 of the plans. Palm Canyon Road may be closed to public traffic, including during nonwork hours, for a period of 14 consecutive calendar days. During this closure period provide access to any and all Fish & Wildlife vehicles, Federal Highway Administration vehicles, and emergency vehicles. After the 14-calendar day period has lapsed, open Palm Canyon Road to public traffic. Provide flaggers, traffic control devices, and supervision sufficient to provide alternating one-way traffic control during work hours and unrestricted access during non-work hours. Erosion Control: Furnish and install erosion control devices to contain any sediment or silt resulting from construction operations. Aggregate base: Mix the aggregate base and adjust the moisture content to obtain a uniform mixture with a moisture content suitable for compaction. Spread and shape the mixture on the prepared surface in a uniform layer. Compact each layer of material full width with one of the following: Four roller passes of a 50-ton compression-type roller. Four roller passes of a vibratory roller having a minimum dynamic force of 40,000 pounds impact per vibration and a minimum frequency of 1000 vibrations per minute. Eight roller passes of a 20-ton compression-type roller. Eight roller passes of a vibratory roller having a minimum dynamic force of 30,000 pounds impact per vibration and a minimum frequency of 1000 vibrations per minute. Roll from the sides to the center, parallel to the centerline of the road. Along all places not accessible to the roller, compact the material with approved tampers or compactors. Shape the surface to the required template and check the surface with a 10-foot straightedge. Defective areas are surface deviations in excess of 0.5 inches in 10 feet between any two contacts of the straightedge with the surface. Correct all defective areas by loosening the material, adding or removing material, reshaping, and compacting. Evaluation for acceptance will be by one or more of the following methods: Acceptance is based on visual inspection of the work for compliance with the contract and prevailing industry standards. For material manufactured off-site, use a manufacturer with an ISO 9000 certification or an effective testing and inspection system. Require the manufacturer to clearly mark the material or packaging with a unique product identification or specification standard to which it is produced. Material accepted by certification may be sampled and tested at any time. If found not in conformance with the contract, the material will be rejected whether in place or not. Sample aggregate base at a rate of 1 per1000 tons. Take samples from windrow. Furnish samples to the Contracting Officer. Furnish one commercial certification for all similar material from the same manufacturer. A commercial certification is a manufacturer's or Contractor's representation that the material complies with all contract requirements. The representation may be labels, catalog data, stamped specification standards, or supplier's certifications indicating the material is produced to a commercial standard or specification. Provide all necessary production and processing of the work and control performance of the work so that all of the work complies with the contract requirements. Results from inspection or testing shall have values within the specified tolerances or specification limits. When no tolerance values are identified in the contract, the work will be accepted based on customary manufacturing and construction tolerances. Accept the work as follows: Surveying will be evaluated using visual inspection. Temporary traffic control will be evaluated using visual inspection. Erosion control will be evaluated using visual inspection. Aggregate base material will be evaluated using Visual Inspection and Certification. Furnish a commercial certification including gradation and quality properties for each source. Aggregate base construction will be evaluated using Visual Inspection and Measured or Tested Conformance. Compaction will be evaluated under Measured or Tested Conformance. Measure mobilization by the lump sum. Surveying will not be measured for payment. Temporary Traffic Control will not be measured for payment. Erosion control will not be measured for payment. Measure aggregate base by the ton. Payment: The accepted quantities, measured as provided above, will be paid at the contract price per unit of measurement as follows: Mobilization-Lump Sum; Aggregate Base-Ton. Call Aileen China at (303) 716-2261 for Request for Quotation with Attachments. Send complete RFQ to attention of Aileen China, FHWA, CFLHD, 555 Zang Street, Rm.259, Lakewood, CO 80228 by close of business June 12, 2001.

Record

Loren Data Corp. 20010523/YSOL005.HTM (W-141 SN50M707)