BOARD02577

• Board Meeting Date: 11/25/2002
• Description: CF Section - Changes to Existing Loans - Cedar Mesa Ditch and Reservoir Company - Cedar Mesa Dam Rehabilitation Project
• Board Meetings - Doc Type: Memo

,

'.
e

e

e

was less invasive to the existing dam then the placement of a vertical chimney drain. The vertical
chimney design had some inherent risks associated with excavating a vertical trench into the
downstream slope of the existing dam,

The original cost estimate included an item for construction surveillance in the amount of
$7,912. This munber did not include the preparation of as-built drawings upon completion of the
project, which is a State Engineer requirement, and underestimated the actual field time required to
complete the project

Added Cost (Change Order Design): $9,200
Added Cost (Const, Surveillance/As-builts): $17,885

Construction Site Access Difficulties

Due to the unknown condition of the access road to the reservoir at the time of construction,
the Cedar Mesa Ditch and Reservoir Company could not obtain a quantified bid to provide a
maintained access road to the construction site. The selected Contractor, however, did negotiate an
hourly rate for the necessary equipment and labor to keep the roadway assessable during the
duration of the project. The cost of maintaining the access road during construction was based on
the total equipment and man-hours actually used,

Added Cost: $9,830

The following is a summary of the actual cost incurred by the Cedar Mesa Ditch and
Reservoir Company and it's Contractor:

Original Cost Actual Cost
Estimate Incurred
Zak Dirt. Inc.
* Embankment Rehabilitation $92,085 $103,200
Cedar Mesa Ditch Co.
* Prior Peizometer Installation $8,920 $8,920
* Prior Eng, and Soils Work $13,342 $13,342
* Feasibility Study $9,720 $9,720
* Final Design ECI $0 $28,000
* C.O. DesignlInsp. ECI $7,915 $35,000
Totals: $131,962 $198,182

Variance

$11,115

$0
$0
$0

$28,000
$27,085

$66,200

Based on the additional costs as illustrated above, the Cedar Mesa Ditch and Reservoir
Company is requesting 75% of the total additional project cost incurred, for an increased loan
amount rounded to $50,000.

DISCUSSION

Paragraph (2) of Section 1 of SB 00-173 allows that loans made by the Colorado Water
Conservation Board may be increased or decreased as may be justified by "reasons of ordinary
fluctuations in construction costs as indicated by the engineering cost indices applicable to the types
of construction required for each project or as may be justified by reason of changes in the plans for
a project due to differing or unforeseen site conditions. errors, or omissions in the plans and
specifications, changes instituted by regulatory agencies, or changes in material quantities beyond
3