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Final Environmental Assessment — Chapter 2— Alternatives <br />Diversion Dam on the Gunnison River (Reclamation, 1995). Fish passage use by <br />Colorado pikeminnow and razorback sucker has been documented at the Redlands Fish <br />Ladder by the Service. This alternative would be compatible with private development of <br />the Jacobson Hydro No. 1 Project, as licensed in the 2001 FERC License Amendment <br />(FERC, 2001) if constructed simultaneously. However, this license was terminated by <br />FERC (2002c) in July 2002. <br />If independently constructed, it could complicate construction of both the hydropower <br />plant and fish ladder. For instance, if the fish passage is constructed first, it would need <br />to incorporate attraction flows. If the fish passage and hydropower plant were <br />is <br />constructed simultaneously, attraction flows could be incorporated into the hydropower <br />plant. Also if fish passage were constructed first, it would present site constraints on <br />hydropower plant construction. The Biology Committee of the Recovery Program does <br />not support two conventional fish ladders in close proximity due to biological concerns. <br />Design <br />The fish ladder would be built on the right bank of the river on the E.R. Jacobson <br />Property. Conceptual designs for the development of the site show the ladder on the <br />same side of the river as the power plant intake of the proposed Jacobson Hydro No. 1 <br />Project (see Figure 3). The ladder would consist of a 200 to 300 foot -long concrete <br />channel, 6 feet in width, and 8 to 10 feet deep similar to the fish passage constructed at <br />the Redlands Diversion Dam (Figure 2). About 25 cfs of river flow would be diverted <br />8 <br />Figure 2- Redlands Conventional Fish Ladder on the Gunnison River, Colorado <br />