Wis. Admin. Code Department of Transportation § Trans 307.09 - Stakes

(1) All stakes shall be metal and of sufficient strength to support the load carried.
(2) Each stake shall be secured to the bed or frame of the vehicle by one of the following means:
(a) Welded to the bed or frame of the vehicle, including as an upright part of a gusseted bunk.
(b) Set into a metal stake pocket which is part of the bed or frame and secured into the stake pocket by:
1. A metal bolt, or
2. A metal clevis pin, or
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
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.
(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.
(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.
(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.
(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.
(7) Logs stacked higher than 5 feet above the bed of a vehicle shall be secured to the vehicle by any of the following:
(a) Tiedowns; or
(b) Cross chains, of the same grade and diameter as tiedowns, which connect the stakes on the opposite sides of each stack of logs; or
(c) A steel gusseted bunk.

Notes

Wis. Admin. Code Department of Transportation § Trans 307.09
Cr. Register, October, 1991, No. 430, eff. 11-1-91.

A stack of logs higher than the top of the stakes must be secured to the vehicle by tiedowns s. 348.10(3), Stats.

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