FLOOD02983

• County: Arapahoe
• Community: Littleton
• Stream Name: Lee Gulch, Little Creek
• Basin: South Platte
• Title: Major Drainageway Planning
• Date: 9/1/1978
• Prepared For: Littleton
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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VII. CONSTRUCTION SEQUENCE

at the same time as the detention facility is constructed. The detention

facility has little affect upon the improvements downstream of the exist-

ing railroad crossings; therefore, these could be constructed prior to

construction of the detention pond at Little's Creek Park.

For these reasons, the following construction sequence is recommended:

In order to preclude any increase of flood damages upstream, downstream,

or adjacent to any of the recommended flood control improvements, careful

attention must be paid to the sequence of the construction of the improve-

ments, particularly to the implementation of the measures designed to separate

irrigation and storm water flows.

LEE GULCH:

1. Improvements from the South Platte to Bemis Street.

2. Detention facility at Little's Creek Park, including Broadway

crossing.

3. Improvements from Bemis Street to Little's Creek Park.

4. Improvements from Broadway to the Highline Canal.

5. Construction of the flow separation structure and the relief

drain upstream of the canal.

Prior to the implementation of the proposed side channel spillway at

the Highline Canal crossing of Lee Gulch the structural improvements at

Elati Street and Windermere Street should be completed, as well as the re-

channelization and erosion protection in the park area east of the AT & SF

Railroad crossing. The recommended improvements upstream of the canal

crossing can be constructed prior to the construction of the flow separa-

tion structure at the canal. The maintenance/access trail can be con-

structed at any time.

LITTLE CREEK:

All of the proposed flood control improvements on Little Creek down-

stream of the Highline Canal need to be constructed prior to the flow

separation structure at the canal. The relief drain upstream of the canal

will be carried underneath the canal in the same area as the separation

structure and should be constructed at the same time.

The 5-year flood with detention at Little's Creek Park was used as the

basis of the preliminary design of the proposed improvements along Sterne

Parkway. For this reason these facilities should be constructed after or

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