Showing posts with label dam. Show all posts
Showing posts with label dam. Show all posts

Monday, December 14, 2015

Menomonee River restoration: a photo essay

by Eddee Daniel


I'd been told over a year ago that a series of five "fish barriers" --aka dams of various sorts and sizes--were going to be removed this year. I've been looking forward to it ever since. With the year rapidly drawing to a close, the work is finally underway. I didn't notice what was happening until I happened to see this big excavator in the river last week. By then most of the work had been done. But I have some before and after photos of the sites to share.


I caught up with the project as the fourth of these impediments to fish passage was being cleaned up. This one had been an abandoned sanitary sewer. Broken pieces of the pipe can be seen (above) piled up in the park for removal.


For decades, while the disused pipe was in the river, it created a short dam with a pool sufficiently deep to attract local kids. This shot (above) was taken a couple of summers ago. Unfortunately, the damming effect was also enough to inhibit the passage of fish and plans to remove all 5 have been in the works for quite a while. As a former board member of Milwaukee Riverkeeper and a nearby resident, I've long anticipated the restoration of the Menomonee.


Today the dam, the pipes and the pool are all gone. Sadly, the tree from which the kids strung their rope swing was also removed to facilitate the project.


In fact a whole swath of trees were removed in order to reach the river. This site is near the intersection of Charles Hart Parkway with the Menomonee River Parkway.


The sewer that went across the river continued on through the woods on the south side. There were at least three--what do we call them now? Manholes was how they used to be described. Anyway, there were three sticking up in the middle of the woods for no good reason. In order to remove them, though, another great swath of trees had to be obliterated. Now what was a narrow mountain biking trail looks like a broad logging road.


Upstream, just east of the Hoyt Park pedestrian suspension bridge was another low dam, seen here in a shot from two winters ago. The bridge is visible in the background.


Today the site looks like this. White limestone has been strewn to create a more natural flow that fish can navigate easily. The MMSD, which is responsible for the project, informs me that the sewer line in this spot is still in place, just covered with the stones. In time it will actually look natural, too!


If you've ever visit Hoyt Pool or the playground next to it and walked down to the river you probably saw this. At some point in its history it was safe to walk across, presumably. It clearly was a walkway, with stairs leading down to in on both sides of the river. The fact that it looks completely dry in this photo from last year was due to extremely low water during a drought. During normal flow levels there was always a waterfall going over the top.


Here is essentially the same view today.


Here is another before and after comparison. Before is above, after removal is below.


Don't ask me why they didn't remove the stairs. Seems like a safety hazard to me. But the fish can swim upstream now.


Just west, still near the playground where my two children played and now I take my granddaughter, was this prodigious dam-like sewer crossing. Again I shot it in 2014 during the drought. I'd never seen it dry before.


Here's the view of it from the north bank.


Now it's gone.


And behold! There are actual rapids where before there was a pool.


Removal of the fifth and final dam is still underway as I write this. It is the largest one. In low water conditions I could easily walk across in my sandals without getting my pants wet. This photo was taken from the south bank just a couple weeks ago after a heavy rain.


This is the same viewpoint last week as workers place fabric over limestone fill in order to stablize the badly eroded bank.


The concrete, which I've heard once carried a bridge of some sort, is wide enough for this front end loader to drive across. It's carrying a clay and topsoil mixture that will cover up the rock and the fabric lining.


Here's the same scene viewed from the north bank a couple days later. The shovel is tamping down the earth on top of the fill.

Rain has halted the project for the moment. But before too long this last Hoyt Park fish barrier will have been removed. Then the Menomonee River will be that much closer to being swimmable and fishable, one of the goals of Milwaukee Riverkeeper. In this case, at least it will be more swimmable by the fish.


Tuesday, September 2, 2014

Public hearing on fate of Estabrook Dam tomorrow

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Courtesy: Milwaukee Riverkeeper
I am forwarding the following from Milwaukee Riverkeeper. Please consider attending the public hearing (details below) or sending a message to your county supervisor (contact info below).

Help Us Remove the Deadbeat Estabrook Dam!

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Quick Facts about Estabrook Dam:

1) Milwaukee County built the Estabrook Dam in 1937 to elevate water levels for recreation (following some blasting of bedrock to alleviate flooding). Milwaukee County failed to maintain and repair the Dam per State Dam Safety regulations over the years. In 2009, the gates were ordered permanently open by the Wisconsin Department of Natural Resources (WDNR) due to hazardous conditions.  

2) Recent studies of the Dam have shown that it increases flooding upstream, poses a liability for Milwaukee County, and will lead to increased flood insurance costs for upstream residents.

3) The ecological health created by a free flowing river offers greater long term value than maintaining the present impoundment behind the Dam. Dam removal will: a.) allow fish to swim to upstream spawning habitats and restore the natural and wild aspect of the Milwaukee River; b.) reduce flooding upstream of the Dam; c.) improve water quality upstream of the Dam; and d.) improve recreational opportunities such as fishing and paddling.

4) Over $8 million has been spent upstream to improve access for fish to spawning habitat via dam removal and construction of fish passage structures.  The removal of the Estabrook Dam would expand the benefits of those projects.

5) County consultants estimate it will cost 3 times as much to repair than remove the Dam if maintenance costs of $2.6 million are included for the next 20 years (the estimated life expectancy of the Dam). These costs do not include the administrative costs associated with state and federal permitting required for the Estabrook Dam.

How You Can Help!

1) Attend the County’s Public Information Meeting on the draft Environmental Assessment:

Wednesday, September 3, 2014, 6:00 PM – 8:00 PM
Nicolet HS (Cafeteria)

2) Contact your County Supervisor and the County Executive and tell them that Estabrook Dam should be removed (contact info on back). The County Board Parks, Energy and Environment Committee will vote on a "preferred alternative" for the Dam at their meeting on Tuesday, September 9th. The full Milwaukee County Board will vote on their preferred alternative on Thursday, September 18th.  Public comments on the draft EA will be accepted by the County through September 17th at surveymonkey.com/s/EstabrookDamComments.

3) Attend the County Parks, Energy, and Environment Meeting on Tuesday September 9th. The Agenda is posted one week in advance, but this meeting typically begins at 9 AM at the Milwaukee County Courthouse, Room 301-B.

4) The WDNR and Bureau of Land Management (who owns some of the land the dam sits on) have both indicated that they will hold a public hearing to fulfill state and federal permitting requirements pertaining to dam operations and construction. We will publish information as it becomes available. 

5) To receive more information, please email: christina@milwaukeeriverkeeper.org and keep up-to-date on our facebook page, or our website at: http://milwaukeeriverkeeper.org/content/estabrook-dam-removal.  


To find your supervisor go to:
http://cts.vresp.com/c/?PreserveOurParks/9e7fec6aa7/3865a739aa/42340b9b41 and click on “Find Your District or Supervisor.”
Then click on the photo of the supervisor to get to contact information.



(Full disclosure: I was formerly on the board of Milwaukee Riverkeeper.)