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Wednesday, March 28, 2012

Thursday, March 8, 2012

Here Come the TREES!!!

After a winter hiatus with not much activity to speak of, The Dredge Report is back for a few final postings as the lake and wetlands receive the finishing touches.

As everyone has probably noticed, the final stage of the streambank restoration project has kicked into high gear, starting with the planting of more than 150 trees (not to mention the soon-to-arrive shrubs). The installation area begins at the topmost end of the eastern wetlands and ends at the last retention pond in the western wetlands.

Megan Pulsts has a thorough description of the next steps in the current issue of PlainTalk. The project will be entirely completed by May 1st.


For more fantastic photographs of the March 6th tree installation action check out Dallas Denny's blog.

Tuesday, November 8, 2011

The Dredge Report Card




Until a few weeks ago, the flow into the lake was controlled by a contraption consisting of a Stop sign wrapped in a plastic bag. Low-concept; low-design; very effective. As the dozens of residents witnessed on October 30 with the turning of the red wheel (see photos below), the city now has something even better than a Stop-In-A-Bag: three separate valves that attenuate water flow into the lake and the creek.

However, the time it takes to fill the lake will depend on several factors. If the weather is wet, not only will the rain contribute water to the lake bed but it will also keep the stream flowing at a rate that doesn't require turning off the valves to ensure stream health. Here's a description from Paul Simpson, our project engineer:


The rate at which the lake will fill is dependent on several factors. First and foremost of course is the weather. This is the driest time of the year so that the flow in Snapfinger Creek is very low. As we are filling the lake, the State requires that the flow in the creek be maintained to at least minimum levels known as the “7Q10”. This equates to what is known as the “base flow” conditions in the stream. If we were to pull too much flow from the creek, it would harm the ecosystem of the creek, which of course we do not want to do. Our maintenance crews will be checking frequently on the flow in the creek and the inflow to the lake and will be adjusting the flows as needed to maintain the proper stream flow.


Meanwhile, there are many tasks that remain on the "punch list," including:

*the landscape architect finishing the design of our banks and berms
*general clean-up and restoration of swings, signs, and debris
*AND the re-opening of the road by the end of the week




Wednesday, October 19, 2011

TURN IT ON!!!

wait for it . . . wait for it . . .



This Sunday, October 23rd at 4:00 p.m. the water to fill the lake will be turned on. Officially and with great festivity.

Everyone who wants to see the first filling waters since March will gather at the path into the Eastern Wetlands and commence celebrating the return of our lake at the speed of 700 gallons a minute!

Bring cameras and champagne.

Tuesday, October 18, 2011

Tuesday, October 11, 2011

Who'll Stop The Rain?




This is the latest aerial photograph of the lake project. Nearly all the changes to the structure are clearly visible, from the new beach sand to the re-sculpted lake bed. The work on the west end of the lake isn't as clearly depicted, but there are tiny construction vehicles---take a close look.

Evidence of the next stage has appeared in the grass next to the Gazebo: the construction of a bio-retention feature designed to manage stormwater run-off from Hemlock, Magnolia, and Clubhouse Drive. Current run-off flows directly into the lake, carrying with it all the pollutants it picks up as it flows downhill. Prior to this installation the city has used a shallow trench and sandbags to direct the water from the street.


The new system will arrest and delay the flow, allowing time for the water to percolate and clean before it makes its way into the lake. The above-ground surface will be planted as a rain garden.





Click on any of the photographs for a closer look.

Wednesday, October 5, 2011

DredgeFest 2011

look out Bill!

At first it appeared that LakeFest 2011 would be held in spite of the empty lake. However, as these photographs illustrate--LakeFest 2011 was held in celebration of our lake-in-progress.



With the singers, dancers, sculptors and painters and jewelry makers, with the bratwurst and beer, doughnuts and arepas and tomato pie, the beautiful sun and mischevious wind it slowly became obvious the the restoration of the heart of Pine Lake---the lake itself---was the ultimate artistic endeavor.


(that's Will and the willow)






Meanwhile, the beat goes on: the markers next to the Gazebo indicate the initial survey for the rain garden/water management feature soon to be installed.




(and the Pacha Mamas)




The Ladies of the Lake


and The Dames of the Dredge
(a.k.a The Lives Of The Monster Dogs)