Amendment 0001.pdf
PDF 1 MB Posted
- Solicitation number
- W912DQ26QA071
About this file
This is an Amendment of Solicitation/Modification of Contract (SF 30) issued by the U.S. Army Corps of Engineers, Fort Bend District, located in Kansas City, Missouri. The modification is dated 24 July 2026 with Amendment Number 0001 to Requisition/Purchase Requisition Number W912DQ and Solicitation Number W912DQ26A0A071.
The amendment modifies the Statement of Work (SOW) for Gasconade Harbor Construction at River Mile 104.5 in Gasconade, Missouri, and changes the payment method from Government to Contractor for CLIN 0001. The SOW requires delivery of 21,100 total tons of rock materials comprising: 400 tons of 6" Minus rock, 300 tons of 3" Clean Rock, 400 tons of 1" Minus Rock, and 20,400 tons of Type 1 Rock with specific gradation and testing requirements. All materials must be delivered via standard end-dump trucks (no trailers, belly dumps, or side dumps) only when Government personnel are on-site, at a minimum rate of 1,000 tons per day and maximum of 4,000 tons per day for Type 1 stone. Deliveries are restricted to 7 A.M. to 5 P.M., Monday through Friday, excluding federal holidays, to the delivery location at 1502 Corps Road, Gasconade, Missouri 65036. The period of performance extends 180 days from contract award. Type 1 Rock must meet specific gradation requirements with maximum stone weight of 3,000 pounds, dirt/fines content not exceeding 5 percent, and must include service records or test results showing bulk specific gravity of at least 2.40 (ASTM C 127) and soundness testing results (CRD-C 144-92) with maximum loss of 25 percent at 20 freeze-thaw cycles. The field contact is Brian Mckown at 816-389-3967.
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| File | Type | Posted |
|---|---|---|
| Combined Synopsis and Solicitation - W912DQ26QA071.pdf |
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Text version
Statement of Work (SOW)
Gasconade Harbor Construction
River Mile (RM) 104.5, Gasconade, MO
Material Requirements
Stone Requirements:
The type and quantity of rock below is required:
Rock Type Quantity in Tons 6” Minus 400
3” Clean Rock 300 1” Minus Rock 400 *Type 1 Rock 20,400
*See attached gradation and testing requirements for Type 1 Rock.
Type of Haul Truck
All rock is to be delivered by a standard end dumping truck. (A standard dump truck has a single chassis or base frame with a mounted bed. The front of the body contains a hydraulic ram that raises the bed.
The back of the bed is hinged to the back of the truck so the front can be raised to dump material out) NO TRAILERS, BELLY DUMPS or SIDE DUMPS. The material may only be delivered if Government personnel are on site.
A minimum delivery rate of 1,000 tons per day and a maximum of 4,000 tons per day of Type 1 stone is required. Other rock type delivery rates will be determined based on weather and site conditions. All deliveries shall be between the hours of 7 A.M and 5 P.M. Monday through Friday except for federal holidays.
Rock or scale tickets shall be given to onsite personnel at the time of stone delivery.
Rock delivery times, dates and sites shall be coordinated between the field contact and the contractor.
The period of performance shall start at the time of contract award and end 6 months after award of the contract.
Delivery Location:
Address:
1502 Corps Road, Gasconade, Mo. 65036
38 degrees 40’29.79” N - 91 degrees 33’04.40” W
Coordinates 38.67424, -91.55021
Delivery Dates:
Upon contract award, delivery will be coordinated with the Quarry. The period of performance shall start at time of award and extend for 180 days.
Field Contact:
Brian Mckown
816-389-3967
Type 1 Stone Gradation Requirements 21 February 2024
Stone shall be reasonably well graded, free from overburden, spoil, shale, and unsuitable material. The quantity of dirt and fines less than ½-inch maximum cross section, accumulated from interledge layers, blasting, handling operations, and/or all other sources, shall not exceed 5 percent by weight. For Type 1 rockfill, the maximum weight of any piece of stone shall be limited to 3,000 pounds. The stone shall be reasonably well graded between the follow limit for Type 1:
Type Stone Weight, LBS Percent Passing
FOR REFERENCE ONLY
Size in Approx.
Spherical Diameter (IN)
Type I 3000 80-100% 39 1000 60-90% 27 500 30-70% 22 100 0-50% 13 50 0-35% 10 1 0-5% 3
The following service records and or tests shall be submitted with the proposal for Type 1 Stone.
Service records and/or tests will be used to determine the acceptability of the stone. A suitable service record will show date last used, identification of ledges to be used, name of previous user, quantities produced since last tested, and results of most recent tests. The source to be utilized shall have been tested within 24 months prior to use under this contract. In the absence of a suitable service record, the stone shall be subjected to any or all of the following quality tests, as determined necessary by the Contracting Officer. Submit quality testing results upon completion. Records for the following shall be submitted.
1.Bulk specific gravity saturated surface-dry basis, method ASTM C 127 – not less than 2.40.
2. Soundness in freezing and thawing method for ledge rock, Method CRD-C 144-92 loss at 20 cycles -not more than 25 percent for at least 50 percent of the face height to be quarried. Length of a freezing and thawing cycle shall be 24 hours - i.e., 16 hours of freezing, followed by 8 hours of thawing.
| Amendment 0001 |
| Statement of Work |
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