9-Item for Evaluation D.pdf
PDF 57 KB Posted
- Attached to
- Ridge Road Gates
- Solicitation number
- 541793
- Issued by
- Wayne County, Detroit City, Michigan
About this file
This is a Special Provision document for Steel Gate installation issued by the City of Detroit Office of Contracting and Procurement for the Ridge Road Gates project, which involves providing temporary gate systems to close Ridge Road between McNichols and the Ridge Road bridge over the Rouge River during high-water events. The project requires furnishing and installing barrier arm swing gates, receiver posts, steel chains, hardware, and concrete foundations according to detailed specifications and manufacturer guidelines. Key materials specified include Tiger Teeth Barrier Arm Swing Gates Model 14020 and Receiver Posts Model 14030R (or approved equals), grade 30 zinc-plated steel chains, and concrete grade P2. All steel gate specifications and shop drawings must be submitted to the Engineer for approval a minimum of 14 calendar days prior to ordering materials. A mandatory Pre-Bid Walk Through is scheduled for Monday, February 16, 2026, at 3:00 PM EST at 16706 Ridge Road, Detroit, Michigan 48219. Payment will be made on a unit price basis for completed work, with separate pay items for 16-foot arm steel gates, 20-foot arm steel gates, gate foundations, and receiver posts.
The Special Provision establishes detailed construction requirements, including minimum post embedment of 30 inches below grade, proper concrete compaction, and level gate alignment with demonstrated swing function and locking ability. All materials must meet the requirements of subsection 907.04 of the Standard Specifications for Construction, with hinges, post caps, latches, and hardware specified as aluminum or metallic coated steel. Concrete foundations within sidewalk areas must be finished flush with adjacent sidewalks. The provision does not require forms for concrete foundations if proper boring holes prevent earth from falling into the excavation limits, and tubular shells may be used and left in place for forming gate foundations. No additional pricing, funding source, award date, or contract term information is provided in this specification document.
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Text version
CITY OF DETROIT
SPECIAL PROVISION
FOR
STEEL GATE
OHM:AKJ 1 of 2 10-21-25
a. Description. This work consists of providing all labor, equipment and materials for furnishing and installing the gate, posts, braces and hardware as detailed on the plans, according to section 808 of the Standard Specifications for Construction and as directed by the Engineer, except as modified by this special provision.
b. Materials. All materials must meet the requirements of subsection 907.04 of the Standard Specifications for Construction.
1. Furnish Tiger Teeth Barrier Arm Swing Gates Model 14020 with Barrier Arm Swing including Post Safety Tape Kit (800-878-7829, Tigerteethstore.com) or an approved equal.
2. Furnish Tiger Teeth Swing Gate Receiver Posts Model 14030R (800-878-7829, Tigerteethstore.com) or an approved equal.
3. Furnish three 3-foot steel chains per gate location. Chains shall be welded steel link ¼” grade 30 zinc plated.
4. Provide all hinges, post caps, latches, and other required hardware for installation of the access gate that are aluminum or metallic coated steel.
5. Provide concrete grade P2 as shown in the plans. Provide concrete in accordance with section 601 of the Standard Specifications for Construction.
6. Submit all steel gate specifications and shop drawings (in PDF format) to the Engineer for approval a minimum of 14 calendar days prior to ordering materials. Do not order any materials until approval of specifications and shop drawings is received from the Engineer.
c. Construction. Install posts and gates as shown on the plans and/or in accordance with manufacturer’s guidelines. Embed posts a minimum of 30 inches below grade. Attach gate to posts using manufacturer supplied hardware or manufacturer’s recommendations. Ensure level and true gate alignment. Demonstrate swing function and locking ability for closed and open position.
The Engineer will not require forms for concrete foundations provided proper boring holes that prevent earth from falling into the limits of the excavation. The Contractor may use tubular shells (left in place) to form gate foundations. Ensure proper compaction around tubular shells when used. Finish the top of the foundations within sidewalk areas to be flush with the adjacent sidewalk.
OHM:AKJ 2 of 2 10-21-25
d. Measurement and Payment. The completed work, as described, will be measured and paid for at the contract unit price using the following pay item:
Pay Item Pay Unit
Steel Gate, 16 foot arm ................................................................................................. Each Steel Gate, 20 foot arm ................................................................................................. Each Gate Foundation ........................................................................................................... Each Receiver Post ................................................................................................................ Each
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