Trans 307.02(9)(9) “Rear end structure” means a metal structure designed to prevent cargo from shifting to the rear, or falling off the rear, of a vehicle including, but not limited to, a rear endboard or endposts. Trans 307.02(10)(10) “Stake” means a vertical metal post along the side of a vehicle, resting in a stake pocket or otherwise secured to the bed or frame of the load carrying unit. The term does not include any component of a front end structure or a rear end structure. Trans 307.02(11)(11) “Stack” means a group of logs of approximately the same length piled one upon the other. Trans 307.02(12)(12) “Tiedown” or “tiedown assembly” means a chain, wire cable, or webbing strap, with any attached end device, used to secure cargo to a vehicle. Trans 307.02(13)(13) “Webbing strap” means a flat band of woven synthetic fibers used to secure cargo to a vehicle. Trans 307.02(14)(14) “Wire cable” means continuous steel strands that are woven into a length of metal rope used to secure cargo to a vehicle. Trans 307.02(15)(15) “Working load limit” means the maximum load limit, measured in pounds, of a tiedown, established by the manufacturer of a chain, cable, webbing strap, or end device. Trans 307.02 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.03(1)(1) General. This chapter applies to any motor vehicle, trailer, or semitrailer transporting logs on a highway within this state. Trans 307.03(2)(2) Exceptions. This chapter does not apply to any motor vehicle, trailer, or semitrailer, including an implement of husbandry, that is equipped with a body enclosing the load-carrying portion of the vehicle, if the body is constructed and maintained with sides and ends: Trans 307.03(2)(a)(a) Of sufficient strength to restrain the entire cargo and to prevent any shifting, falling or spillage of the logs. Trans 307.03(2)(b)(b) Of sufficient height so that no portion of the cargo is above the sides or ends. Trans 307.03(2)(c)(c) Without any open aperture large enough to pass any log carried while being transported. Trans 307.03 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.035(1)(a)(a) No person may operate, or allow the operation of, any vehicle carrying logs on a highway, except in compliance with the requirements of this chapter. Any violation of this chapter shall be treated as a violation of s. 348.10 (3), Stats. Trans 307.035(1)(b)(b) A law enforcement officer may require the operator of a vehicle to stop and properly secure a load, including reloading if necessary, to comply with this chapter. Trans 307.035(2)(2) Stacking logs. Logs shall be stacked parallel to one another in an orderly fashion. Trans 307.035(3)(3) Attachments and fastenings. All attachments and fastening devices mounted on a vehicle, and used with a tiedown assembly, shall have a tensile strength at least as great as the tensile strength of the tiedown assembly alone. Trans 307.035 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.04(1)(1) Vehicles transporting logs generally. Except as provided in sub. (3), each stack of logs shall be secured to a vehicle by tiedowns in the manner required by this chapter. Trans 307.04(2)(a)(a) Vehicles carrying logs crosswise, or at right angles to the side of the vehicle, shall be equipped with both a front end structure and a rear end structure of sufficient strength to support the load. Trans 307.04(2)(b)(b) Front and rear end structures shall be securely bolted or welded to the frame of the vehicle, except that front or rear end structures consisting of metal posts may be secured in pockets in the same manner as required for stakes by s. Trans 307.09 (2) (b). Trans 307.04(2)(c)(c) Posts which are part of a front or rear end structure shall be made of metal. Trans 307.04(2)(d)(d) Logs shall be stacked so as to be firmly wedged against the front and rear end structures, and any required center device, so that the logs cannot roll or shift forwards or backwards. Trans 307.04(2)(e)(e) Logs carried crosswise shall also be secured to the vehicle frame by longitudinal tiedowns. Trans 307.04(3)(3) Vehicles equipped with stakes. Vehicles equipped with stakes are required to use tiedowns to secure loads of logs to the vehicle, unless all of the following apply: Trans 307.04 NoteNote: See s. 348.10(3), Stats., for the statutory exemption. Nevertheless, the department recommends for additional safety that tiedowns, as approved in this chapter, also be used to secure logs even on vehicles equipped with stakes. However, Michigan law requires the use of tiedowns even if a vehicle is also equipped with stakes. See Mich. Comp. Laws Ann. s. 257.720 (5) (c) (iii). Trans 307.04 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.05(1)(1) All chain used as a tiedown device shall be free of cracks, breaks and separations. Trans 307.05(2)(2) Chain shall be constructed of welded steel links, at least 5/16 inch diameter and rated grade 7 or higher, with a minimum working load limit of 4,700 pounds. Grade 4 chain may be used if the diameter of each link of the chain is at least 3/8 inch diameter, with a minimum working load limit of 5,400 pounds. The department may, in its discretion, approve other grades of chain. Trans 307.05 NoteNote: Grade 7 chain is commonly known as “transport grade.” Grade 4 chain is commonly known as “high test grade.”
Trans 307.05(3)(3) Chain shall be marked with a grade code embossed at least once every 20 links. Grade codes are shown in Table 1.
TABLE 1: CHAIN GRADE MARKINGS USED BY
U.S. CHAIN MANUFACTURERS
Trans 307.05 NoteNote: Chain manufactured by Acco, Boltmaster-Taylor, Hodell, and Teledyne McKay is marked with a grade stamp on each link. The other chain manufacturers above mark their chain with a grade stamp, as indicated, every 10 to 20 links or 2 to 3 linear feet. This table is compiled from information published by the National Association of Chain Manufacturers. The department will update and revise this table periodically. New or additional marking information may be submitted by chain manufacturers to the Wisconsin Department of Transportation, Division of State Patrol, Motor Carrier and Inspection Services Section, P.O. Box 7912, Madison, Wisconsin 53707.
Trans 307.05(4)(4) No person may use grade 3, proof coil, or ungraded chain as a tiedown for logs. Trans 307.05(5)(5) No person may use chain if any link is elongated due to stress. Trans 307.05(6)(6) No person may use chain that has been repaired, unless the working load limit of the repaired chain is at least as great as the working load limit of the original chain. Trans 307.05 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.06(1)(1) All end devices shall be installed and used in accordance with the manufacturer’s instructions and operate properly. All end devices shall be free of cracks, breaks, and excessive wear. Trans 307.06(2)(2) All end devices shall be constructed of metal with a manufacturer working load limit or breaking force limit at least as great as the chain, webbing strap, or wire cable to which the end device is attached. Trans 307.06(3)(3) Adjustable end devices shall be designed, constructed, and maintained so that the operator of a vehicle can adjust the end devices. Trans 307.06(4)(4) All end devices shall be securely attached to the vehicle. Trans 307.06(5)(5) No person may use an end device which has been repaired, unless there has been a total replacement of the load-bearing component with a replacement component meeting the requirements of this section and the manufacturing standards of the original manufacturer of the tiedown assembly. Trans 307.06(6)(6) The anchorages by which a tiedown device is attached to a vehicle shall have a tensile strength at least as great as the tensile strength of the tiedown assembly. Trans 307.06 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.07(1)(1) Webbing straps shall have a minimum working load limit of 1,000 pounds per inch of width. Trans 307.07(2)(2) Webbing straps shall be marked by the manufacturer to indicate its working load limit or breaking force limit. Trans 307.07(3)(3) Webbing straps that have been repaired shall bear a clearly legible label stating the name of the company that made the repair and the load rating of the repaired strap. Trans 307.07(4)(4) Webbing straps consisting of woven strands may not be used as a tiedown if: Trans 307.07(4)(b)(b) Separation of its load-carrying stitch pattern exceeds 1/4 of the total stitch area. Trans 307.07(4)(c)(c) Severe abrasion or other damage reduces the strength of the tiedown by at least 20%. Trans 307.07 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.08(1)(1) All wire cable shall be a minimum of 3/8 inch diameter with a minimum rated working load limit of 3,000 pounds. Trans 307.08(2)(2) No person may use wire cable that has been repaired or spliced. Trans 307.08(3)(3) No person may use wire cable with more than 3 broken wires in any strand or excessive deterioration. Trans 307.08(4)(4) Wire cable shall have a uniform diameter and may not have any detectable reduction in diameter at any point. Trans 307.08 HistoryHistory: Cr. Register, October, 1991, No. 430, eff. 11-1-91. Trans 307.09(1)(1) All stakes shall be metal and of sufficient strength to support the load carried. Trans 307.09(2)(2) Each stake shall be secured to the bed or frame of the vehicle by one of the following means: Trans 307.09(2)(a)(a) Welded to the bed or frame of the vehicle, including as an upright part of a gusseted bunk. Trans 307.09(2)(b)(b) Set into a metal stake pocket which is part of the bed or frame and secured into the stake pocket by: Trans 307.09(2)(b)3.3. A retaining chain, which shall be a separate length of chain not also serving as a tiedown, cross chain or retaining chain for another stake, or Trans 307.09(2)(b)4.4. Any other metal device which locks the stake into the stake pocket so that the stake cannot be removed from the stake pocket without first releasing the retaining mechanism. Trans 307.09(3)(3) Each stack of logs shall be supported by a minimum of 4 stakes, 2 on each side of the vehicle, or by 2 complete gusseted bunks. Trans 307.09(4)(4) Each stack of logs shall be supported by at least 2 stakes on each side of the stack. Stacks of logs exceeding 10 feet in length shall be supported by stakes or gusseted bunks at linear intervals of no more than 10 feet. For stacks of logs over 20 feet in length, the number of stakes on each side of a stack of logs, or of gusseted bunks, shall at least equal the length of the longest log in the stack divided by 10, with any fractions rounded up to the next whole number. This subsection does not apply to pole trailers. Trans 307.09(5)(5) If any portion of any log is stacked higher than the top of any stake on the vehicle, then that stack shall also be secured by tiedowns. Trans 307.09(6)(6) Logs shall be stacked firmly against the stakes on each side of the vehicle or secured by tiedown devices to prevent rolling or shifting.
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