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001066 Final Environmental Assessment-Chapter 2-Alternatives to private and State properties, rights-of-ways, and facilities. Following construction, any damaged area would be restored, as near as practicable, to its original condition. Temporary construction access to the dam would be from an existing trail that lies within the railroad right-of-way that parallels the railroad tracks and through E.R. Jacobson property downstream of the dam. Construction staging and material storage would be on adjacent vacant land owned by Eric Jacobson. Figure 5-Public Service Company of New Mexico Diversion Dam Rock Fish Passage on the San Juan River, New Mexico Construction access and staging areas are limited near the dam because of its proximity to the railroad tracks. However, because the fish passage would be located in the river channel and not between the dam, head gates and railroad; construction access would be less constricted when compared to the conventional fish ladder alternative. A cofferdam and/or bypass channel may be used to direct the river around the construction area and river flows would not be reduced. Before construction, Reclamation and the contractor would obtain necessary approvals required by the Clean Water Act. Reclamation would request Section 404 authorization under Regional General Permit No. 057 for projects that benefit recovery of endangered fishes. If discharging water for construction dewatering is needed, the contractor would obtain a Section 402 permit. Reclamation would also coordinate construction activities within the IOO-year floodplain with Mesa County. Construction would be scheduled during low river conditions in 2005. The estimated construction cost for this alternative is approximately $4,800,000. Costs for operations and maintenance for this alternative would be negligible. Recovery Program cost for this alternative would be comparable to the Downstream Rock Fish Passage with Whitewater Features Alternative. 13