SOW_for_Riprap_Delivery_Mid_Decatur_Repair_12-6-18.pdf

Solicitation No. W9128F19Q0016

Missouri River Recovery

Middle Decatur Bend Rock

Delivery

Missouri River, Nebraska

Missouri River Recovery Program

November 2018

US Army Corps of Engineers Omaha District

Riprap Delivery in Remote Area for Mid Decatur

Bend Project As of December 4, 2018

BID SCHEDULE

Item No. SUPPLY/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

RIPRAP SUPPLY

CONTRACY Delivery 6,000 Net Tons $ _______ $

CONTRACT

TOTAL AMOUNT $___________

Missouri River Recovery Program MRRP – Middle Decatur Bend Rock Delivery

SCOPE OF WORK

FOR

SUPPLY AND STOCKPILE STONE AT

MIDDLE DECATUR BEND

1. Scope.

Contractor shall provide all equipment, labor, riprap and trucking to supply up to 6,000 tons of fractured riprap from a certified quarry to the specified location which is to 2-miles West of

Onawa, Iowa on Highway 175 then proceed Southwest on County Road Cypress Avenue for 3-miles where the riprap can be unloaded. The specific area is the access road adjacent to the project area, which will be flagged, and the Missouri River Project Office (MRPO) staff will available assist the trucks to unload which is at the point of entry on the access road to the site. A pre-delivery conference will be conducted to ensure the trucks are not held up for unloading.

Contractor will be required to provide equipment at the site to stockpile the material to approximately 10 feet in height. The Period of Performance delivery date between January 14, 2019 and February 22, 2019 for the 2-week period with requirements stated an on-site meeting with MRPO staff to determine the time and delivery location before any material arrives on site.

2. Quantities:

The contract will consist of a total of 6,000 tons of riprap material, delivered in intervals over a two-week period.

3. Riprap:

All stone for riprap protection shall be durable ledge rock or field stone. Fieldstone shall be mechanically fractured on a minimum of three (3) sides and shall meet the grading requirements set forth in these specifications. Stone shall be in pieces rectangular in cross section, free from thin slabby pieces having maximum dimension more than four times the least dimension. Stone for riprap shall be reasonably, well-graded from coarse to fine. Dirt and fines of less than ½-inch maximum cross section, accumulated from inter ledge layers or from blasting or handling operations shall not exceed 5 percent by weight.

The contractor shall be responsible of all sampling and testing specified herein. The Government may perform verification tests as determined necessary for final approval of the riprap material. All samples including samples taken during production shall be representative of the riprap material furnished or proposed to be furnished.

Samples shall be taken in accordance with ASTM D 75 or other approved method. No rock shall be furnished from any source, which has not been sampled, tested, and approved for delivery to the site.

Tests for specific gravity shall be performed on samples of material obtained from each source proposed for use as riprap prior to start of delivery. Bulk specific gravity shall be computed in accordance with COE CRD-C 107 except that the total sample shall weigh 5000 grams +2 percent and individual particles shall weigh approximately 300 grams each. Riprap material shall be tested in a saturated surface-dry (SSD) condition. The computed bulk specific gravity so determined shall not be less than 2.7. Testing of stone shall be waived if the stone is obtained from a certified quarry. Riprap shall be a well-graded fractured stone with the following gradations and weights:

INDEX

Limits of Stone Weight Percent Lighter Weight Size in Approx.

by Weight in Pounds (lbs) Spherical Diameter (in) % Maximum Minimum Maximum Minimum

4. Stockpile Area:

Riprap shall be stockpiled specified location which is to 2-miles West of Onawa, Iowa on

Highway 175 then proceed Southwest on County Road Cypress Avenue for 3-miles where the riprap can be unloaded.

A location map is attached for reference of the stockpile sites, the exact locations shall be shown by the Missouri River Project Staff. Riprap quantities shall be split evenly between the stockpile location. It shall be the contractor’s responsibility to track the amount of stone in each pile. The contractor shall have equipment on site to keep the riprap pushed up at all times. Riprap shall be piled in the designated areas to approximately 10 feet in height. The contractor shall keep the stockpile site neat and orderly to facilitate the truck traffic flowing easily and safely.

5. Protection of Existing Facilities:

Contractor shall be responsible for protection of all existing facilities during delivery of the riprap.

Any damage done to the facilities during delivery shall be repaired at the cost of the contractor.

6. Safety Requirements:

The Contractor shall ensure that safe working practices are utilized and that all equipment meets the requirements of the US Army Corps of Engineers, “Safety and Health Requirement s Manual”, EM 385-1-1, 30 November 2014, before work begins. A copy of this manual is available at the

Missouri River Project Office, 9901 John J Pershing Dr., Omaha, Nebraska 68112. The contractor shall submit a site-specific safety plan for approval prior to commencement of work.

7. Submittals:

The successful contractor’s stone supplier shall be submitted to the Contracting Officer’s

Representative for approval prior to commencement of delivery of the riprap along with providing the test result. All technical questions should be directed to Mr. Charles Leinen at 402-996-3749.

All contracting questions should be directed to the contracting specialist Lynne Reed at 402-995-

2039 or Contracting Officer Tracie Evans 402-995-2816.

8. Measurement and Payment:

Per Ton. Riprap material will be measured for payment by the number of tons satisfactorily delivered and stockpiled. The riprap material shall be weighed: (1) on public or private scales which have been certified by the State. The contractor shall furnish the government inspector a copy of each printed weigh bill when self-printing scales are used, or a copy signed by a public or bonded weigh master as each load is delivered; or (2) riprap material may be weighed on the

Contractor-furnished scales under the supervision of the Government inspector. Each printed weigh bill shall contain the following; date, unit number, time of gross, tare and net weight, name

100 532 213 22 16.2 50 158 106 14.7 12.8 15 79 33 11.6 8.7 of project, contractor, contract number and signature of bonded weigh master. All riprap shall be weighed to the nearest 20 pounds and the net weight reduced to the nearest hundredth of a ton.

The contractor shall be paid within 30 days of successful delivery of the specified riprap and upon the receipt to the project office a proper invoice and proper weigh tickets containing the fore mentioned information.