PROJ01805

• Contract/PO #: FS0047FX
• Contractor Name: Colorado Trout Group Inc.
• Contract Type: Miscellaneous
• Water District: 0
• Loan Projects - Doc Type: Application

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STATE OF COLORADO

WATER DIVISION ONE
OFFICE OF THE STATE ENGINEER
Division of Waler Resources
Department of Natural Resources

800 8th Avenue, Room 321
Creeley; CO 80631
Phone [phone]
FAX [phone]

Roy Romer
\"";overnor

July 9, 1997

Jilrnes S. Lochhe"d
Ext'Cutive Director, DNf<

H'" D. Simpson
State Engineer

Rld....rd L. Stenzel
[);viilon Engil'lL'l'r

Anne M. Law, &
Colorado Trout Group, Inc. (attn: LeRoy Moy)
P.O. Box 395
RollinsvilJe, CO 80474

When replying, please reter to:
Lake Manchester Dam
W. Div. 1, DAMID: 060307

Dear Ms. Law & Mr. Moy:

As you know, on September 2, 1994, I performed a dam safety inspection on the subject
dam in accordance with Section 37-87-107, Colorado Revised Statutes (1991 Repl. Vol.), This
statute assigns to the State Engineer the responsibility for the determination of the safe storage
level for the reservoirs within Colorado, and provides the authority to drain reservoirs which are
found to be unsafe. At the time of the inspection. the dam was observed to have a number of
problems which, if left unattended, could ultimately lead to its failure.

Since the 1994 inspection, progress to rectify the identified safety deficiencies at the dam,
as verified by periodic follow-up inspections, has been very slow at best. In order to ensure that
this does not continue unabated, I feel that it is necessary to impose a time limit for
accomplishment of measurable progress at enhancing the safety of the structure. Therefore, I am
requiring that a work plan for improving the safety of the dam, in the areas described by my 1994
report, be submitted by your engineer to this office for review no later than December 31, 1997,
Additionally, the remedial work. on the dam will need to be comPlet~ No~ember 30, ) 998.:.J
Failure to meet these dates will result in a restriction being placed on t e reservoir to ensure its
safety,

Please bear in mind that the plans and specifications for the repair of the dam will ne~d to
be approved by our Denver office in advance of construction, and that the review may statutorily
take up to 180 days. I can provide you with whatever intormation you need on how to prepare an
acceptable set of design documents per the Dam Safety Rules.

In the meantime, water should not be stored in the reselVoir in excess of the level of the
lowest spillway overflow pipe, as this reduces the already nominal freeboard and aggravates the
existing seepage problem. The use offlashboards to raise the lake level'is not allowable,