BOARD02200

• Board Meeting Date: 3/26/2001
• Description: CWCB Director's Report
• Board Meetings - Doc Type: Memo

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to design and construct the necessmy improvements to restore the dam to its original storage
capacity of 230 acre-feet. The proposed improvements include, constructing a compacted earthfill
liner on the upstream siope of the reservoir and floor, construct new toe drains, raise the
embanlanent dam crest by 2.5-ft., place rip rap and iiner protection material above the earthfill
liner, spillway repairs, and fill the old borrow pit within the reservoir. Harrison Western
Construction has commenced construction in rehabilitating the dam face and will continue working
as weather permits. Project is anticipated to be completed in the Fall of2ool.

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7. Hil!h1and Ditch Comnanv - Foothills Reservoir Dam Rehabilitation

Authorization: SB 98-1 i 98 - Severance Tax
Water Source: St. Vrain River
Terms of Loan: $1,040,000@4.0%for30years

County: Boulder - W ofLongmont
Project Yield: 450 ac.ft.
Project Type: Dam Rehabilitation

This project is the rehabilitation of Foothills Reservoir dam, located west of Longmon1 in
Boulder County. The dam has an inadequate spillway and severe seepage through the ernbankment
and has had a storage restriction placed on it by the State Engineer. Smith Geotechnical
Engineering Consuitants of Fort Collins Colorado prepared the final design plans and
specifications. The proposed improvements include a new spillway, a sand filter blanket along the
downstream face of the dam, a perimeter toe drain with flow measuring devices, rip rap placement
along the upstream face of the dam, and reconstructing the dam crest. The project was awarded to
Zak Dirt, out of Longmont, Colorado, who commenced construction in December of 2000 and is
approximately 55% complete. The project is anticipated to be completed by May of200l.

. 8. Pine River Canal Comnanv Pine River Canal Rehabilitation at Tunnel Hill

Authorization: SB 99.173
Water Source: Pine River
Terms of Loan: $243,700@3.5%for20yrs.

County: La Plata - SE ofIgnacio
Project Yield: 71,000 acre feet
Project Type: Canal Rehabilitation

This $350,000 project is the rehabilitation of the Pine River Canal at the Tunnei Hill site,
located 8 miles southeast of Ignacio. The project consists of replacing a water supply tunnel in
poor condition, with approximately 700 lineal feet ofn.inch diameter concrete pipe, bypassing the
tunnel completely. The Natural Resource Conservation Service has completed the design plans
with CWCB staff completing the construction bid documents. The Pine River Canal Company has
retained the services of Gosney and Sons, from Bayfield, Colorado, to construct the project, who
commenced construction in November of 2000. The Contractor has completed setting the entire
pipe and is currently forming the inlet structure. The project is approximately 85% complete and is
anticipated to be totally compiete by April of2001. .

9. Woodchuck Ditch Comnanv - Ditch Rehabilitation

Authorization: Small Project Loan
)Vater Source: SodaIGunn Creeks
Terms of Loan: $40,000 @ 3.75% for 20 yrs.

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County: Routt-N.W. Stean3boat Springs
Project Yield: 1,250 acre feet
Project Type: Ditch Rehabilitation

In 1997 a significant landslide removed approximately 250-ft. of the Woodchuck Ditch.
Since that time the Ditch Company has spent significant time and money in temporary repairs to
keep the ditch operational. In 1999 the Natural Resources Conservation Service (NRCS),