Rio Grande - Alamosa River Watershed Restoration_Application

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. Water Supply Reserve Account - Grant Application Form Form Revised May 2007 This earlier 319 project also included in-stream construction of a demonstration reach (1300 LF) of potential restoration techniques. The grant project that funded the completion of stabilization/restoration efforts in 2004-6 began in 2001 and encompassed comprehensive vegetation monitoring, pre-construction field surveys, establishment of monitoring cross sections and photo points. USEPA 319 grant funds have been pursued because of the program's focus on improving water quality. Water quality degradation in the Alamosa River above and below Terrace Reservoir include mining (recent and historic) in the upper watershed, natural geological erosion and acid rock drainage, irrigation management of the available water, and riparian area management. The primary water quality impact to the Alamosa River below Terrace reservoir is sediment and bedload. As stated above the primary source for this sediment is stream bank erosion. The goals of the current phase (and previous phase) of river restoration are to apply Best Management Practices (BMPs) to restore the health of the riparian zone and to restore the balance of sediment transport continuity through reestablishment of a geomorphically stable stream (Alamosa River Watershed Restoration Project, CDPHE 319 NPS Final Report, 2000-2006). 8. Additional Information DELlVERABLES OVERVIEW The requested $104,000 in SB179 funds, together with $396,000 in 319 funding, will leverage $500,000 in NRD funding and these funds in total, supplemented with a $11,700 match from ARWRF and local in-kind donations by landowners and other entities. will accomplish the deliverables listed below. e To be completed on the 2.8 mile reach of the Alamosa River CR 8 to CR 10: Stream Restoration 15,000 linear feet (incl. reattached meanders) Excavation of excess riverbed material 15,000 cubic yards Bank protection / stabilization 30,000 linear feet Vegetated bank stabilization 30,000 linear feet Boulder cross vanes (instream structures) 17 Boulder vanes (instream structures) 160 Design river to accommodate 9 irrigation diversion structures Chinking, sills and over-pour protection 2000 cubic yards Vegetation restoration of riparian corridor ca. 40 acres Agricultural area serviced by improvements 15,000 acres (est.) Benefits: Sediment reduction Improved water quality Improved water delivery for irrigation Improved aquatic and riparian habitat Increased recharge of local aquifer through saturation of riverbanks Greater sustainability of water resources Flooding protection for the community of Capulin SB179 Statewide Account Funds will be exclusively implemented for construction equipment rental costs (For details please see attached budgets.) Pending final rental contracts, the funds will cover an estimated 3-4 months of rental for the articulated truck, excavator, front-end loader, and bulldozer towards completion of the deliverables listed above. . 18