WSP11780

• File Number: 8443.400
• Description: Narrows Unit - Reports
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 5/1/1973
• Author: US DoI BoR
• Title: Narrows Unit Definite Plan Report
• Water Supply Pro - Doc Type: Definite Plan Report

r

.<'! r-,..,-
10,,;,::.

The comparative direct and total benefit-cost ratios derived for
the 1969 Reevaluation Statement and the Definite Plan Report (DPR)
are presented below.

Item

1969 Reevaluation
statement

1973 DPR

"

Direct benefits only
Total benefits

1. 81
1. 89

1.30
1.42

Financial Analysis

Cost AlIocat ion

Discounted project costs, interest durin~ construction, and OM&R
costs have been allocated concurrently by the separable costs-
remaining benefits method, using a 100-year period of analysis
with interest at 3-1/4 percent. The allocation to highway improve-
ment is limited to that portion of separable costs of construction
to current standards which exceed the cost of replacement in kind
as provided by Section 208 of the 1962 Flood Control Act (Public
Law 87-874).

The derivation of separable and joint costs is presented in Table 'I.
The detailed cost allocation is presented in Table 5. A comparison
of the allocations of undiscounted costs for the 1969 Reevaluation
Statement and the DPR is given in Table 3.

Table 3.--Comparison of allocations of undiscounted costs
($1,000)
Project Costs Annual OM&R
1969 Reeval- 1973 1969 Reeval- 1973
Purpose at ion statement DPR ation statement DPR

Irrigation
Flood control
Highway improvement
Recreation
Fish & Wildlife
Local
National

Total

21 ,121. 'I 28,603.0 17.1 20.3
24,350.1 31,287.0 14.0 15.4
135.0 186.0 0.0 0.0
15,815.5 21,254.0 185.2 212.6
6,628.0 8,420.0 97.1 111.7
(5,712.4) (7,299.0) (96.7) ( 111. 4 )
(915.6) (1,121.0 (0.4) (0.3)
-
68,050.0 89,750.0 313.4 360.0

16