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<br />ROCKWELL
<br />
<br />Location:
<br />23 miles west of Fort Collins,
<br />
<br />Sponsor:
<br />
<br />City of Fort Collins.
<br />
<br />Primary Purpose of the ProJect
<br />
<br />Municipal water supply,
<br />
<br />. Secondary Benefits:
<br />
<br />Recreation:
<br />
<br />History and Background:
<br />
<br />The proposed Rockwell Reservoir Project Is located
<br />approximately seven (7) miles upstream from the mouth of
<br />the South Fork of the Cache Is Poudre Riwr, The site is
<br />. partially on the Roosevelt Natlonal Forest. approKimalely
<br />23 miles west of Fort Collins. During the 1920's, the Cities
<br />of Fort Collins and Greeley purohased several parcels of
<br />land known as the Rockwell Ranch, It was apparently
<br />purchased with the Idea of protecting the source of water
<br />supply for the two cities In the future, Also owned in this
<br />area are six (6) small ditches with a combined watar right
<br />of about 12 cubic feet per second,/n 1951, a preliminary
<br />survey was made for a possible dam across the South
<br />Fork. just downstream from. the mouth of LltUe Seaver
<br />Creek. Several s1udles have been conducled during the
<br />last two decades to determine the feasibility of the project.
<br />Preliminary geologic investigations Indicate that the
<br />heightofthedam may be limited to about 120feet (or 4,900
<br />acre-feet of capacity) because of a lack of suitable
<br />embankment materials, The project sile is also in an area
<br />
<br />where both wilderness and wild and scenic river
<br />designations have been proposed, The City has made a
<br />request to both the U,S, Forest Service and the con:
<br />gressional delegation that the Rockwell project site be
<br />excluded from the proposed designation.
<br />Physical Fact~ and Figures:
<br />Height,lengthallfl type of dam: Height 120 feet: Length
<br />1.050 feet; Earth em~nkment
<br />Storage capacity (,i\.F,) of reservOir: 4.900 aCrti-feet
<br />Shoreline and surface area: Shoreline - 4,5 miles;
<br />Surface Area - 140 acres
<br />Average annual power generation: NlA
<br />Population to be served: 20,000 (In addition to 80,000
<br />now selYed by Fort Collins)
<br />, .
<br />, Irrigated acres to be served: NI A .'
<br />
<br />Estimated cost $10,000.000 (1900)
<br />
<br />Construction schedule: To be determined by conditions
<br />
<br />PropOsed Sources of Funding:
<br />Safe of l1)unicipal bonds with repayment from Water Utility
<br />revenues,
<br />
<br />For Further Information Contact
<br />
<br />Roger E, Krempel: Director .
<br />Public Works and Water Utilities
<br />P,O. Box 580, Fl Collins. CO 80526
<br />484-4220
<br />
<br />SPINNEY MOUNTAIN
<br />
<br />,.,
<br />'-1 "~
<br />0i~'h'
<br />
<br />, Location:
<br />On the Middle Fork of the South Platte, 10 miles east of
<br />Harset and approximately 2.5 miles upstream from 11 Mile
<br />Canyon ReservOir.
<br />Sponsor:.
<br />City of Aurora.
<br />Primary Purpose of the Project
<br />Municipal water supply,
<br />History and Background:
<br />In 1974 a consulting firm com pleted an extensive feasibili-
<br />ty study for the City of Aurora, It estimated future water
<br />needs, evaluated existing and potential water rights. and
<br />carne up wltn computer SImulations of Aurora's raw water
<br />system Jhrough the year 2000. The consulting firm
<br />recommended that the City proceed with financing
<br />additional subsurface explorations, design and build the
<br />proposed Spinney Mountain Reservoir Project, with com-
<br />pletion in December of 1976,
<br />In July of 1974, the Aurora city council passed an
<br />ordinance raising water rates and tap fees to pay for the
<br />
<br />-:....
<br />
<br />Spinney Moul\tain project.A citizens' group opposed the
<br />ordinance. The matter went to trial court, the Court of
<br />Appeals, and f1nallY'tothe CoioradoSupreme Court which
<br />decided In fevor of ,the City, That decision came in
<br />December of 1977. But In the meantime. the City had
<br />transfemld money set aside for the design of Spinney
<br />Mountain to other smeller projects.
<br />
<br />A new design contract with the original consultants 'was
<br />approved by council action in December 1977, In May of
<br />1978, General Obligation Water bonds were issued to pay
<br />for the construction,
<br />
<br />The Corps of Engineers asked .the City to apply for a
<br />Section 404 permit which was done In February 1978. In
<br />July of that year. the public notice of the request for the
<br />permit was Issued, In'. September of 1978. the Corps
<br />Informed the City that 811 EnvlronmantallmpactStatement
<br />,would be required, The consultants completed an En-
<br />vironmental Assessment Report (EAR) and geological
<br />studies near the project. in April of this year.
<br />
<br />In October of 1979. the City submitted a Mitigation Plan
<br />addressing each of the Items requested in meetings and
<br />correspondence from State Game and Fish personnel,
<br />
<br />(ConlimJfld on next page)
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