MI DNR Walkway Specs 12-11-17 Re-Bid.docx
DOCX document 19 KB Posted
- Solicitation number
- RFQ 751 180000000238 1
- Issued by
- Huron County, Caro City, Michigan
About this file
This is a General Specifications document for the Michigan Department of Natural Resources regarding an elevated boardwalk construction project at Sanilac Historic State Park in Caseville, Michigan, issued as a Re-Bid #18*0000000238. The project involves the design and fabrication of a fully engineered clear span boardwalk measuring 54'-00" to 56'-00" in length and 4'-00" in width, constructed of either aluminum or Fiber Reinforced Polymer (FRP) materials. The boardwalk must be modular for transport to the remote project location with no single component exceeding 150 pounds. The manufacturer must demonstrate a minimum of five years of boardwalk design and fabrication experience and provide references for five similar projects each in service for at least three years. Submittal drawings and structural calculations must be provided within fifteen calendar days of purchase order issuance and must be signed and sealed by a licensed Professional Engineer or Architect in Michigan. The manufacturer is responsible for delivery to the nearest site-accessible road location and providing assembly drawings and procedures; the owner is responsible for unloading, placement, site soil testing, and foundation design and construction. A minimum ten-year structural warranty covering materials, design, and workmanship is required.
The structural design must accommodate a minimum uniform live load of 40 pounds per square foot for spans exceeding 50 feet, a wind load of 25 pounds per square foot calculated on the entire vertical surface as if fully enclosed, and a sustained snow load of 35 pounds per square foot specific to the project location. Boardwalk hardware must utilize aluminum, A307 hot-dipped galvanized steel, or approved equivalent materials for bolted connections and mounting devices. Railing height shall be a minimum of 42 inches above the floor deck. All fabrication tolerances must be maintained at 1/16 inch with cut edges cleaned and smooth. The boardwalk shall feature a milled aluminum finish or approved equal. The decking shall be provided and installed by the owner. The warranty excludes defects resulting from foundation failures, abuse, misuse, overloading, accidents, faulty construction, alterations, or other causes unrelated to defective materials or workmanship and is limited to repair or replacement of structural defects without liability for consequential or incidental damages.
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Other files
| File | Type | Posted |
|---|---|---|
| Schedule A - Statement of Work - Re-Bid.docx | DOCX document | |
| Standard Contract Terms.docx | DOCX document | |
| Instructions to Bidders Re-Bid.docx | DOCX document |
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Text version
Sanilac Historic State Park, Caseville, MI - Elevated Boardwalk
General Specifications Re-Bid #18*0000000238
1.0 GENERAL
1.1 Scope
These specifications are for a fully engineered clear span boardwalk of Aluminum or Fiber Reinforced Polymer (FRP) construction and shall be regarded as minimum standards for design or approved equal. Boardwalk components shall be modular to transport to remote project location, while maintaining no modular components exceed a weight of 150 lbs. per piece.
1.2 Qualified Suppliers
The boardwalk manufacturer shall have been in the business of designing and fabricating of boardwalks for a minimum of five years and provide a list of five successful boardwalk projects, of similar construction, each of which has been in service at least three years. List the location, boardwalk size, owner and contact reference for each boardwalk.
2.0 GENERAL FEATURES OF DESIGN
2.1 Span
Boardwalk span will be 54'-00" – 56’-00” (straight line dimension) and shall be measured from each end of the boardwalk structure.
2.2 Width
Boardwalk width shall be 4'-00" and shall be measured from the inside face of structural elements at deck level.
3.0 ENGINEERING
Structural design of the boardwalk structure(s) shall be performed by or under the direct supervision of a Licensed Professional Engineer or Architect and done in accordance with recognized best engineering practices and principles.
3.1 Uniform Live Load
Boardwalks spanning greater than 50’-0” will be designed for a minimum of 40 psf.
3.2 Wind Load
All boardwalks shall be designed for a minimum wind load of 25 psf. The wind is calculated on the entire vertical surface of the boardwalk as if fully enclosed.
3.3 Snow Load
Sustained snow load conditions for the project location shall be considered for a snow load of 35psf.
4.0 MATERIALS
4.1 Decking
Decking shall be provided and installed by owner.
4.2 Hardware
Bolted connections shall be aluminum, A307 hot-dipped galvanized steel or approved equal. Mounting devices shall be aluminum, galvanized stainless steel or approved equal.
5.0 SUBMITTALS
5.1 Submittal Drawings
Schematic drawings and diagrams shall be submitted to the client for their review after receipt of order. Submittal shall be within fifteen (15) calendar days after the purchase order is issued. All drawings shall be signed and sealed by a Professional Engineer or Architect licensed in the State of Michigan.
5.2 Submittal Calculations
As required, structural calculations shall be submitted to the owner. All calculations will be signed and sealed by a Professional Engineer or Architect licensed by the State of Michigan.
6.0 FABRICATION
6.1 Tolerances
All cutting and drilling fabrication to be done by experienced workers to a tolerance of 1/16". No material deviations beyond industry standards are accepted. All cut edges to be cleaned and smooth, no sharp edges.
7.0 RAILINGS
7.1 Railing Height
Railing height shall be a minimum of 42” above the floor deck.
8.0 FINISHING
Boardwalk color shall be a milled aluminum finish or approved equal.
9.0 DELIVERY and ERECTION
Delivery is made by truck to a location nearest the site accessible by roads. Manufacturer will notify the client in advance of the expected time of arrival at the site. Boardwalks are shipped to the site in component parts or partially assembled depending on site requirements. The spans can then be completely assembled using standard hand tools. Upon request, boardwalks can also be shipped totally assembled to the site. Unloading and placement of the boardwalk will be the responsibility of the owner.
9.1 Erection Direction
For boardwalks shipped in component parts or partially assembled, the manufacturer shall provide assembly drawings and a recommended assembly procedure for assembling the boardwalk. Temporary supports or rigging equipment, if needed, is the responsibility of the owner.
9.2 Site Issues and Foundation Design
The client shall procure all necessary information about the site and soil conditions. Soil tests shall be procured by the client. The engineering design and construction of the boardwalk abutments, piers and/or footing shall be the responsibility of the owner.
10.0 WARRANTY
The manufacturer shall warrant the structural integrity of all materials, design and workmanship for a period of not less than 10 years. This warranty shall not cover defects in the boardwalk caused by foundation failures, abuse, misuse, overloading, accident, faulty construction or alteration, or other cause not the result of defective materials or workmanship. This warranty shall be limited to the repair or replacement of structural defects, and shall not include liability for consequential or incidental damages.
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