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Evaluation and Design Services - Crystal Lake Dam, Barton, VT

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Bid Information

Bid Alert No: 00000526900

Bid Title: Evaluation and Design Services - Crystal Lake Dam, Barton, VT

Agency Bid No. Title: Not Stated

Received Date: 03/30/2016

Close Date: 04/15/2016

Purchase Type: completion date will be October 14, 2016.

Delivery Point:

Delivery Date: Not Stated


Specifications include, but are not limited to:PROJECT SCOPE AND TASKS Crystal Lake Dam was constructed in 1860. Its original purpose was for mill power. It was reconstructed in 1966 by adding concrete to the upstream and crest of the stone masonry. The reconstruction includes three downstream buttress walls and a sluice gate located on the left end of the dam. The overall length of the dam is 65 feet and its height 17 feet. The dam has a principal concrete overflow spillway on its right side. In 2003 seepage was noted at the joint between the left most buttress wall (aka left training wall) and the headwall and at the downstream end of the same wall. In 2005 auger borings were completed to refusal, and the conclusion was reached that the seepage was flowing through bedrock and not the dam wall. Since 2005 the flow rate has increased significantly but has remained clear. The scope and tasks, including completion date of each task include the following: Scope: 1. Determine flow path of seepage and estimate seepage volume. 2. Perform stability analysis on left buttress wall, left end of dam, and embankment section downstream of left end of dam in current condition. 3. Based on the findings of items 1 and 2, develop remediation alternatives to reduce or stop the seepage and improve stability

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Product Codes: 95939, 92518

Agency Information

Issuing Agency: State of Vermont - Department of Environmental Conservation

State: Vermont

Agency Type: State and Local

Contact: Kim Mckee, Financial Operations 1 National Life Drive, Main 2, Montpelier, Vermont, 05620

Phone: 802-477-3349




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