Binder 12. Gunnison study. Cost estimates for transmountain diversion projects

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~ ~ D R

HOR Engineering, Inc.

Dece

m

ber 8

, 1

9

88 Mr. Blai

n

e Dwyer

Suite 300 303 East 17th Avenue Denver, Colorado 80203-1256

Colorado

W

ater Resources

&

Power Develop

m

ent Authority

1580 Logan Str

ee

t

,

Suite 620

Denver

,

Colorado

80

203

Tetephcne:

303 861-1300

RE

:

Upper Gunniso

n-

Uncompahg

r

e Basin St

u

dy

Trans

m

ittal of Study Docu

m

e

n

tation

Dear Blaine:

T

ransmit

t

ed

h

er

e

with is the USBR's docu

m

entat

i

o

n

of cost es

t

imates

generated

f

or transmountain diversion projects

.

This is sub

m

itted

i

n

advance o

f

t

h

e r

e

mainder of the study docu

m

entation for your

early

r

eview a

n

d perusa

l

.

Y

ours very truly,

HOR ENGINEERING, INC

.

,,,, .. -- ✓

~

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[-,-

/

And

r

ew Tczap

,

P

.

E

.

Project Manager

A

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ttn

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c. As noted

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•

TABLE 8.1

Central Colorado Project CHARACTERISTICS

Project Firm Annual Yield

Project Power and Energy Requirements

Power

Energy

Project Power and Energy Produced Power

Energy

FEATURES

Collection System:

Existing Blue Mesa Reservoir

Aqueduct:

Blue Mesa Pumping Plant Intake Structure

Blue Mesa Pumping Plants

Blue Mesa Pipeline Tomichi Creek Tunnel:

S. Arkansas River Stream Stabilization Transmission Line 60,000 af 11.6 MW 91,381 MWH CAPACITY/ SIZE 0 MW 0 MWH Q=lOO cfs 6 ea. @ Q=lOO cfs, TDH=l94' Q=lOO cfs, d=5.5', L=l80,900' Q=lOO cfs, d=lO', L= 91,900' Delta Q=lOO cfs, L= 66,000' 69 KV, L=l56,000'

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TABLE 8.2

Central Colorado Project Preliminary Cost Estimate

PROJECT FEATURES Mobilization

Blue Mesa Pumping Plant Intake Structure

Blue Mesa Pumping Plants

Blue Mesa Pipeline

Tomichi Creek Tunnel

South Arkansas River Stream Stabilization

Transmission Line

Miscellaneous Items (10%)

Subtotal Direct Cost

Contingencies (25%)

Total Direct Cost

Engineering, Legal, and Administration (15%)

Total Construction Cost

Interest During Construction (8% over 5 years)

Total Capital Cost

Debt Service Reserve Fund (1 year debt service)

Financing Expenses

Total Investment Cost

Annual Debt Service (8% over 30 years)

Annual O&M Cost

Annual Energy and Power Cost

Annual Energy and Power Revenues

Blue Mesa Water Purchase

Total Annual Cost COST 3,737,000 1,464,000 12,768,000 38,221,000 128,660,000 2,112,000 3,642,000 19,060,000 209,664,000 52,416,000 262,080,000 39,312,000 301 , 3 92. 000 66,110,000 367,502,000 36,417,000 6,059,000 409,978,000 36,417,000 1,992,000 3,773,000 0 3,000,000 45,182,000

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