PROJ00345

• Contract/PO #: C153330
• Contractor Name: Upper Yampa Water Conservancy District
• Contract Type: Loan
• Water District: 0
• County: Routt
• Bill Number: SB 77-35
• Loan Projects - Doc Type: Feasibility Study

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Specification
Page or Draw-
ing No.

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P. 133

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P. 145

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Item l4(d) indicates that special loading equipment and oper-

ations may be required to accomplish the mixing of materials

from the "full height of the designated face." This language

is very restrictive and may be unnecessary unless the borrow

area is stratified with widely varying zones which must be

blended to produce suitable fill. The site inspection did not

indicate this to be a problem. It is recommended that the

paragraph specify a maximum steepness of final slopes to

insure stability, as outlined in Section II.

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Item 18 refers to Zone 2 material as "selected". The same

term "selected" appears on Drawing 2 in the description of

Zone 3. This term usually implies special operations such as

selective loading and placing, stockpiling, or wasting, A more

conventional term, at least for Zone 3, would be "random fill".

Considering that these zones represent a large part of the dam,

substantial cost savings can be realized by simplifying the

requirements for their construction as much as possible. The

information reviewed for this report indicates that with proper

stripping, rock separation, and moisture conditioning, the

spillway excavation and borrow materials should be essentially

all usable in the dam.