PROJ00150 - Laserfiche WebLink

Home Browse Search

I I I I I I I I I I I I I I I Three alternatives for expanding the saddle reservoir v.'ere considered: I. the no.action alternative, construct new west dam and maim:.tin the existing reservoir elevation. and 3. construct new west dam and raise the cast dam. thereby increasing the reservoir elevation. , Allernatil'e ,No. J was considered unacceptable because it doesn't allow Bill and Barton Poner to stOre their full adjudicated water right, thereby preventing increased crop and livestock production. Alternutil't! No.2 was ruled out because regional topography is not conducive for feasibly increasing the reservoir [0 the desired storage volume. AI/emu/h,t! 1\'0. J was selected, since it is considered to be the least co::itly and most reliable approach of achieving the project design objectives. Selected Altcrnatiyc The selected alternative. Alternali~'e No.3, involves construction of a new 83.5.foot high West dam approximately 280 feet downstream of the existing \\'est darn. and removal of the existing structure. The existing east dam will be raised 28 feet. A new outlet \....orks and spillway in the west dam \.','ill also be constructed. Golder Associates Inc. (Golder) prepared engineering designs and cost estimates for the project. These plans were included with the Colorado Water Conservation Board (eWCB) lo:m application. A copy oflhe C\\'eB loan application is included for reference in Appendix B. The estimated cost of the completed project is $2 million. The cost breakdown is summ::J.rizcd in Table 3. The design report prepared by Golder was also included with the previously submitted C\VCB loan application. Table 3. Barton Porter Resel"\'oir Expansion - Detailed Cost Estimate hem Estimated Unit Unit Estimated Quantity Price Amount MOBILIZA TIONIDEMOBILIZA nON 1 L5 1$5.000 55.000 Western Dam Embankment Water Diversion and Control I L5 5'00 5200 Clearing. Grubbing and Striooing 17.76 AC 5500 $8.880 Removal of Existing Outlet Works 1 L5 5400 $400 Foundation Preparation 5.46 AC $400 52.184 Existing Piezometer and Inclinometer Removal I L5 $100 $100 Common Excavation 238.570 CY $0.80 S 190.856 Kev Trench Exca\.ation 2_035 CY $0.80 $1.6~8 Rock Spillway Excavation 21.136 CY $5.50 $116.248 SpillwJ\-/Access Road Excavation I 10.500 CY $0.80 $8.400 BHlandBV1onPono:r Rcs.cOOlr F.~pamjon f~35ibilit) Sllld~ AU!!lL~11001 1 .":~~-';N>!')(>o].OI'DZJ:HI 0)01 0??6Oo DOC Pag~ 7 of 13