Completed removal of natural log/ crib dam log jam. The goal of the removal was to lower the elevation water and creek bed to assist the sediment evacuation.
Project Update – 2/4/18
Completed a GPS topographic survey of the entire site from the campground to the old dam location. Prior to leaving the site an inspection of each area was completed.
Project Update – 11/26/17
All design build contractor crews and equipment have been demobilized from the site for the 2017 season. A tentative mobilization schedule has been set for May of 2018.
Project Update – 11/19/17
Work continued removing Mill Pond dam and motivate its impounded sediments downstream.
The log crib dam removed to allow free passage of the creek, with secure portions remain within the banks to either side (Photo 1 & 2). The delta floodplain was graded by machine, and channels were dug to speed and direct the water to better erode the impounded sediments (Photo 3, 4 & 5). Was released from Sullivan lake in significant quantity, flushing sediment from the delta and pond bottom into Sullivan Creek and downstream (Photo 6).
Project Update – 11/12/17
Work continued removing Mill Pond dam and motivate its impounded sediments downstream.
The removal of Mill Pond Dam was completed to the expected bottom of Sullivan Creek (Photo 1), though a subsurface key of unknown size remains. Work continued removing the log crib dam, with a significant portion having been removed to provide a channel for Sullivan Creek through the dam site. Portions of the log crib dam remain; in the channel, beneath a haul road, and in the opposite bank (Photo 2, 3 & 5). The pond has been completely drained, with water levels dropping more than 35 feet. The delta floodplain was graded by machine, and channels were dug to speed and direct the water to better erode the impounded sediments (Photo 4). With the dam removed water was released from Sullivan lake in significant quantity, flushing sediment from the delta and pond bottom into Sullivan Creek and downstream (Photo 5 & 6).
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