FLOOD01117

• Designation Number: 219
• County: Arapahoe
• Community: Littleton
• Stream Name: Upper Slaughterhouse Gulch
• Title: Major Drainageway Planning - Upper Slaughterhouse Gulch
• Date: 3/1/1983
• Designation Date: 7/1/1983
• Floodplain - Doc Type: Floodplain Report/Masterplan

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(a) Drainage Improvements

(b) Utility Relocation

(c) Contingency

(d) Site Acquisition

(e) Engineering and Construction

(f) Operation and Maintenance

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The improvement costs were then used to update the benefit-cost analysis of the

Phase-A study. A summary of the benefit-cost analysis is presented in Table V-2.

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D. Plan Implementation

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Priorities of construction have been based upon the damage frequency, net bene-

fits, and other priorities established by the municipality. Normally, improvements

for each reach are relatively independent of one another. The IOO-year detention

facility in Reach-D will greatly impact all reaches below. However, the detention

is not the highest priority since most of the benefits (to other reaches) occur

at the lower frequency storms.

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The priority of construction, discussed ,n detail in Chapter V, is shown below:

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1. Storm sewer - Reach-A

2. IOO-year detention - Reach-D

3. Denver Highline Canal spill structure - Reach-D

4. Storm sewer - Reach-E

5. Storm sewer - Reach-C

6. Channel - Reach-B

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