DOT-SS-23-9098-PB PUR 7776.pdf

STATE OF FLORIDA DEPARTMENT OF TRANSPORTATION

FDOT DESCRIPTION OF INTENDED

SINGLE SOURCE PURCHASE

(PUR 7776)

375-040-53

PROCUREMENT

03/19

PUR 7776 (rev.10/14) Page 1 of 2 60A-1.010, F.A.C.

AGENCY: DEPARTMENT OF TRANSPORTATION

TITLE: High Capacity Geosynthetic Direct Shear Machine

Short description of the commodity or service desired: High Capacity Geosynthetic Direct Shear Machine

CONTACT

Name: Paul Baker

Address: 605 Suwanneee Street, MS 20, Tallahasseee, FL 32399

Telephone: 850-414-4412

Email: paul.baker@dot.state.fl.us

Internal tracking number, if any: DOT-SS-23-9098-PB

Date posted: 6/5/2023 Last day for receipt of information:6/23/2023

This description of commodities or contractual services intended for purchase from a single source is posted in accordance with section 287.057(3)(c), Florida Statutes and will remain posted for a period of at least 15 business days.

Commodity or Service Required (commodity class and group, manufacturer, model, and description, as appropriate):

11111500, 22101900, 41113900

Quantity or Term (as appropriate): One (1) - High Capacity Geosynthetic Direct Shear Machine

Requestor (division, bureau, office, individual, as appropriate): Brandi Bertram

Performance and/or Design Requirements (intended use, function or application, compatibility etc. requirements; reference to policy, rule, statute or other act of the Legislature, etc., as appropriate): The State Materials Office currently performs direct shear testing for materials used in the design of Mechanically Stabilized Earthen Walls (MSE Walls). The test is performed in accordance with the AASHTO and FM T-236 test methodology for soil materials. The test method requires the maximum size of the soil particles be such that the test chamber is no less than six times the maximum particle size. For the device the lab currently uses, the maximum size particle of soil able to be tested is 2.24mm. Construction allows for the use of larger particle sizes (up to 2 inches) for soil materials. In many areas of Florida, including South Florida, Limerock materials may have a significant portion (over 50%) over this particle size, requiring the test be performed on materials that do not fully constitute the full scope of material gradation used onsite and provide an ultra-conservative friction angle result. By purchasing this device, the laboratory will be able to test significantly larger particles which would be more representative of materials used in the construction of the MSE Walls. A study performed by FHWA found that testing larger particle sizes increased the friction angles by 5-6 degrees. Implementing this equipment would allow for the use of materials in MSE walls that would have failed testing at smaller particle sizes to pass with larger particle sizes (increasing the availability of backfill materials for construction). Further, if the design friction angle were increased, it would decrease the length of the geosynthetic straps used in the MSE wall construction therefore providing a cost-savings to the project.

Intended source (vendor, contractor): Gilson Company, Inc.

Estimated Dollar Amount: $46,000

Justification for single source acquisition (what is necessary and unique about the product, service or source; steps taken to confirm unavailability of competition, as appropriate): This device is manufactured and sold by the Gilson Company. There are no available alternatives to this device.

Approved By: (names & titles, as appropriate to Post on Vendor Bid System (VBS), e.g., requestor, requestor management, information systems, budget, purchasing):

Authorized Signature Title

DocuSign Envelope ID: 3CBFBADC-F060-4AF2-B25C-6CA8403A0ED9

State Purchasing Administrator

STATE OF FLORIDA DEPARTMENT OF TRANSPORTATION

FDOT DESCRIPTION OF INTENDED

SINGLE SOURCE PURCHASE

(PUR 7776)

375-040-53

PROCUREMENT

03/19

PUR 7776 (rev.10/14) Page 2 of 2 60A-1.010, F.A.C.

Central Office Legal Review:

Authorized Signature Title

Legal review by the Office of General Counsel is required prior to posting. Please coordinate with District Legal

Counsel prior to submission to the Office of General Counsel, MS-58.

Prospective vendors are requested to provide information regarding their ability to supply the commodities or contractual services described. If it is determined in writing by the agency, after reviewing any information received from prospective vendors, that the commodities or contractual services are available only from a single source, the agency shall:

1. Provide notice of its intended decision to enter a single-source purchase contract in the manner specified in s.120.57 (3) F.S.

DocuSign Envelope ID: 3CBFBADC-F060-4AF2-B25C-6CA8403A0ED9

Assistant General Counsel