Wisconsin Administrative Code
Department of Natural Resources
NR 300-399 - Environmental Protection - Water Regulation
Chapter NR 320 - Bridges And Culverts In Or Over Navigable Waterways
Section NR 320.04 - Bridge and culvert clearance over navigable waterway
Universal Citation: WI Admin Code ยง NR 320.04
Current through August 26, 2024
(1) New bridges or culverts or replacements of existing bridges and culverts spanning navigable waterways, shall, except as provided in this section, maintain a clearance of not less than 5 feet.
(2) The department may require clearance of more than 5 feet when the waterway has been or is likely to be navigated when it is above its ordinary high water mark elevation or if it is used by watercraft or snowmobiles requiring greater clearance.
(3) The department may allow less than 5 feet of navigation clearance when all of the following apply:
(a) The waterway is known to have little or
no navigation or snowmobile use.
(b) The waterway is not anticipated to have
navigational use by other than lightweight craft.
(c) The owner provides a portage over or
around the bridge or culvert.
(d)
The reduced clearance would not be detrimental to the public
interest.
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