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<br />- 21 - <br /> <br />and a Parshall flume on the Pine River Canal. It will be replaced <br />with a concrete drop structure, so that Pine River Canal excess <br />flow can be dumpted into Ute Creek. <br /> <br />Concrete chute No. 7 replaces two large timber drop structures <br />just upstream from the Pine River Canal crossing over Ute Creek. <br /> <br />Structure No. 10 is a wooden chute structure with a concrete <br />stilling basin at the outlet. The wood section will be replaced <br />with a concrete chute attached to the existing stilling basin. <br /> <br />Structures No. 16 and 19 are waste structures located at <br />small natural drainages that provide the double purpose of an over- <br />flow for storm runoff inflow from above the canal and for emergency <br />dumping of the canal. <br /> <br />Two concrete Parshall measuring flumes will be added immedi- <br />ately below division structure No. 24. This structure divides the <br />water into the North and South Branches of the Pine River Canal. <br />No measuring devices were provided at the structure. <br /> <br />Concrete chute No. 41 replaces a sheet metal lined timber <br />chute structure which overfalls into an eroding earth basin in the <br />canal. <br /> <br />Slipform concrete chute No. 42 replaces eroded and unstable <br />wooden drop structure No. 42, 43, and 44. It will have a bottom <br />width of 4 ft., side slopes of 1.25:1, and a 2.0 ft. depth. It <br />will have a reinforced concrete inlet and stilling basin. <br /> <br />Structure No. 45 will be similar to No. 42. It replaces an <br />existing concrete chute which is in poor condition. <br /> <br />Structure No. 46 is a concrete canal division and drop structure <br />that will have a concrete stilling basin added on both branches to <br />provide erosion and grade control. <br /> <br />Structure No. 47 is a pipe flume over the railroad. The section <br />crossing the railroad cut was replaced in 1964 with metal pipe. The <br />remaining section is woodstave pipe on low bents. The section will <br />be replaced with an earthfill. A concrete inlet transition will be <br />constructed at the inlet of the metal pipe. <br /> <br />Structures No. 40, 49, and 51 are concrete canal check structures <br />to provide hydraulic.grade control for headgates. <br />