This past Saturday, July 23rd, twenty-five or so neighbors took a fish-eye tour of the lake project and its many components. Below is a link to a clip detailing just one element:
Sunday, July 24, 2011
Friday, July 22, 2011
Wednesday, July 20, 2011
Under Construction
(photo by Greg Zarus)
At this point in the project it's hard to tell what is being restored, constructed, and removed.
The impoundment has a completely different profile. What was once a mostly vertical face now has two sections--a slope (red arrow) and a bench (white arrow). The slopes are stabilized with jute matting and will be seeded with various plantings to help increase erosion and sediment control.
The June 28th DR included a diagram of the stream showing "rock cross vanes" inserted into the banks and across the bed. All but two of these have been installed and are already creating pools and riffles in the downstream flow.
Within the next week to ten days we'll begin to see more results: the completion of the cross vanes, the removal of existing spoils from the lake bed, and the construction of fish habitat shelves along our berm.
Phil will be taking the PL kids on a tour of the "bottom" of the lake this Saturday, July 23rd at 10 a.m. and describing the lake project from a fish-eye view. This tour is open to children of all ages--feel free to attend (and wear shoes that can take some mud!).
For more photos and information check out:
Sunday, July 10, 2011
The Dirt on The Dirt
In the week-plus since the last DR many changes have happened, as evidenced by the machinery in the lake bed, the mounds of earth, the trees that have been cut and stacked, and the lightning strike that delayed this report and rendered it photo-less.
There have been several inquiries about the dirt that's piling up next to the changing stream bank: when and how it can be collected for use in yards and gardens; how it's being managed to protect the stream from sediment as construction continues.
As of this date Phil and Josh Maner (the on-site project manager) are considering trucking the silt removed from the lake bed to the PW building where it can dry and be made available to residents.
As for the erosion and sediment controls along the stream bank construction, there is nothing at this time to prevent some dirt from washing into the stream should there be a rain event.However,in the State of
The basics are not being ignored. On a daily basis the contractor provides such erosion control as is necessary and reasonable and in keeping with the State issued permit. For example, jute matting is being placed on the slopes as the work progresses and PAM mulch will be applied to this and to the bench at the waterside. In addition, the top of the new berm is currently sloped such that rain that falls on the top of the berm will flow into the lake, not the stream, capturing all silt in the now dry lake bed (which, during the course of the work, cannot flow into the stream and will ultimately be removed as work progresses there). Erosion controls are adjusted at the end of each work day to meet the intent and letter of the permit.
A significant amount of silt was already washing into the stream during every rain event- note the raw banks with no vegetation along the northside of the stream. This project will alleviate that problem.
The city and the State regulators understand that a project of this type will necessarily create some concerns and even problems during the course of the work but that the end result will be to create a habitat and bank structure that will keep future erosion to a minimum.
Friday, July 8, 2011
The Dredge Reporters: Yuri and Charleston
The lake project has elicited many responses and questions. Yuri and Charleston talk dirt. Click here:
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