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I I I I I I I I I I I I I I Plans E through G. Eagle-Arkansas waters would be diverted from the Eagle River and conveyed into new storage reservoirs as outlined under the individual plans. 1. Plan A - Tunnel and Pipelines Plan A includes: a. A tunnel extending 22,500 feet northwesterly from the vicin, ity of the Fancy Creek Diversion Dam to a portal on Cross Creek 2.000 feet upstream from the north end of Middle Moun- tain at elevation 10,400. A rockfill dam and diversion structure would be constructed for diversion of Cross Creek water into the tunnel. b, A 54 inch pipeline 3.800 feet long from the tunnel portal on Cross Creek around the north end of Middle Mountain to West Cross Creek at elevation 10,450 with diversion facilities similar to those at Cross Creek. c. A 42 inch pipeline 21.000 feet long from the tunnel portal on Cross Creek to a diversion point on East Cross Creek one mi Ie downstream from Lake Patricia at elevation 10,500. Stream diversion facilities would be provided similar to those at Cross Creek. d. A 54 to 66 inch pipeline 63,000 feet long connecting to the , Fancy-French conduit at the French Creek diversion, traversing . .the west slope of Homestake Valley and terminating at Fall Creek at elevation 10,400. Diversion facilities would be provided at Fall Creek, Peterson Creek, Whitney Creek and other unnamed stFEidms. Diversion would be practical at these minor streams u'';r this plan since the pipeline crosses the stream in each case. o e, A 72 inch pipeline commencing near the inlet of the Mis- souri Tunnel and paralleling the existing Fancy-French gravity conduit 3,000 feet in a northerly direction to the portal of the tunnel under 1-a. Initial flows under this diversion would be routed into the Fancy-French conduit. Ultimate development would overload the Fancy-French conduit. and the additional 72 inch parallel conduit would be required. f. To collect Eagle-Arkansas Division waters. a 42 to 60 inch pipeline 58,000 feet long, beginning at an outfall structure on the east slope of Tennessee Pass and traversing the east slope of Piney Creek and the South Fork of the Eagle River and the south and north slopes of the East Fork of the Eagle River and terminating at elevation 10,500. Diversion facilities would be provided at the East Fork of the Eagle River, Cataract Creek, Jones Gulch, and other minor named and unnamed streams crossed by the pipeline. The conduit would be installed in an existing tunnel through Tennessee Pass and discharge into Ten- nessee Creek. Tennessee Creek would require appreciable enlarge- ment or a conduit would be required to convey Eagle-Arkansas waters to a point downstream in Tennessee Creek where the natural channel would have adequate capacity to accommodate the increased flows. 2. Plan B - Tunnels and Pipeline Plan B includes: a, Section 1. a tunnel extending from the vIcinity of Fancy Creek Diversion Dam northerly 18,000 feet, thence westerly 9.000 feet to a point beneath Cross Creek Valley with a riser shaft to the valley floor at elevation 10,400. A rockfill diversion dam, gated diversion structure, measuring flume and diversion pipe connected to the tunnel riser shaft would be constructed to divert Cross Creek water into the tunnel. b. Section 2, a tunnel extending from the riser shaft at Cross Creek northwesterly 3,000 feet to a point beneath West Cross Creek Valley, A riser shaft and diversion facilities would be provided similar to those at Cross Creek. c, Section 3. a tunnel extending from the point on Section 1 at which the tunnel angles westerly to Cross Creek. in a north- easterly direction, 10,500 feet to a point beneath Notch Moun- 13