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s J new_. ix a.� ®ryr .�1 2, 'k.9Y +Y!l.. ♦ ♦��``tt _.i�� <br />pi's. ~? <br />TA <br />1 tt�� fy <br />P'' r <br />' <br />�/ �✓ :r�.i TM <br />Wester /2iyhts, Water Quaff ;ty c Water .So/ut;ons ;n the Wes7` <br />f, COLORADO WHITEWATER COURSES <br />In This I ssue: AND. WATER RIGHTS <br />by Kenneth W. Knox, Ph.D., P.E., Colorado Division of Water Resources (Denver) <br />Colorado Recreational <br />Water Rights ............ *as 1 <br />Introduction <br />The State of Colorado, similar to many other regions throughout the United States, is <br />^ Federal Wetlands <br />blessed with rivers and streams of exquisite beauty. Many of these streams cascade <br />� <br />: Jurisdiction 8 <br />through the mountains and flow toward the oceans with sufficient slope to offer rafting, <br />v ................ <br />kayaking, canoeing, and other types of boating opportunities from early spring through the <br />summer and autumn months until winter ice encroaches. Individuals have enjoyed river <br />Y: <br />boating opportunities for decades in the natural stream channels throughout Colorado. <br />Water Utility <br />Within the last few years, the number of whitewater enthusiasts has increased dramatically <br />k Conservation Project <br />and prompted an expanding demand for defined courses that include structures designed <br />Analysis ....................... 13 <br />to enhance whitewater features. Local munic and count officials have responded by <br />P Y o <br />constructing whitewater courses or river parks in their quest to capture the economic <br />incentives from this burgeoning recreational interest. A map (page 2) and a table <br />Rights -of- -Way Across <br />(spanning pages 4 and 5) have been included to help illustrate the range of existing and <br />Federal Lands <br />Pending whitewater courses within Colorado. <br />9th Circuit Ruling 22 <br />This article provides a measure of practical insight into the legal, technical, and <br />..... <br />administrative disciplines relevant to water resource management that are impacted by <br />whitewater courses. To begin, it is important to establish the terminology and physical <br />characteristics that pertain to a whitewater course. As to terminology, a "recreational in- <br />Water Briefs ............... 23 <br />channel diversion" (RICD), "whitewater course" and "kayak course" are used <br />interchangeably and considered to be synonymous. These terms refer to the physical <br />Calendar ..................... 27 <br />characteristics of a "whitewater course" and are distinct from the water rights that seek to <br />provide a protected source of water to flow through these structures. <br />Whitewater courses are constructed within a predefined stretch of a natural river <br />Upcoming Stories <br />channel or stream corridor. These courses include drop structures and other flow - altering <br />structures constructed within the stream to provide near- instantaneous course changes, <br />elevation drops, standing waves, and other turbulence - inducing features that enhance the <br />Instream Flow <br />"ride" within a predefined stretch of a stream corridor. The structures are typically <br />Science <br />constructed of large boulders placed in accordance with a professional engineering design <br />to retain their structural integrity under high flows and provide varying Ievels of <br />Water Planning <br />whitewater challenges to enthusiasts with different degrees of proficiency under changing <br />In Phoenix <br />river flows. The hydraulic structures are keyed (i.e., anchored), into the banks of the river <br />and the river channel for stability. They are often grouted or cemented for additional <br />structural strength. Construction activities within the natural stream channel are subject to <br />= <br />federal compliance with the "dredge and fill" requirements in Section 404 of the Clean <br />& More. I j <br />Water Act (33 U.S.C.A. § 404). As previously mentioned, these whitewater courses are <br />constructed within or adjacent to municipalities, therefore they often include spectator <br />° <br />seating along the river corridor to offer unobstructed views to friends, families, and others <br />. <br />enjoying the aquatic athleticism of whitewater enthusiasts. <br />Issue #30 <br />August 15, 2006 <br />