Why hydropower is not a feasible option for Estabrook Dam
April 23, 2009
Milwaukee Riverkeeper has been advocating for the removal of the Estabrook Dam, to protect water quality and save taxpayer money. Last week the Parks, Energy and Environment Committee of the County Board voted to pursue a study of hydropower at the Estabrok Dam. Riverkeeper responds:
To: Milwaukee County Board of Supervisors
From: Cheryl Nenn, Milwaukee Riverkeeper
Date: April 22, 2009
Subject: Recent Parks, Energy, and Environment Committee Action on Estabrook Dam
It was with great disappointment that I learned of the recent resolution passed by the Milwaukee County Board’s Parks, Energy, and Environment Committee on April 14, 2009 to authorize spending $5,000 to repair some of the failing stop logs at the Estabrook Dam and to authorize procurement of grant funds to do an analysis of whether the existing dam or a new dam structure further downstream (near Estabrook Falls) could be a good option for hydropower. The Committee also authorized an RFP for removing decades of accumulated debris behind the Estabrook Dam, and that is something we completely support assuming that the clean-up work will be funded.
As you know, the Milwaukee County Dam Rehabilitation Workgroup found that the Estabrook Dam needs between $12-20 million dollars to repair major structural problems, and remove decades of built up debris. Not only does the authorized $5,000 work to the stoplogs not adequately or meaningfully address the current DNR Dam Repair Order at hand or the decades of deferred dam maintenance, it wastes $5,000 of the precious County Parks budget to make small dam repairs that will not make the dam functional or safe to operate this year or in the future. Furthermore, converting the Estabrook Dam for hydropower or constructing a new hydroelectric dam further downstream will neither solve our energy problems with an inefficient low-power dam nor justify the tremendous environmental impacts and irreparable harm that such dams create. Milwaukee Riverkeeper has taken a formal position advocating removal of the Estabrook Dam, and would be adamantly opposed to repairing the current dam or creating a new dam for hydropower or another ill-conceived purpose.
Facts on how hydropower dams affect rivers:
- All dams disrupt stream flows, degrade water quality, impede migration of fish, damage fish and wildlife habitat, and diminish or eliminate recreational opportunities. Dams cause physical and chemical changes to our waterways, including altering flow regimes and sediment transport for miles beyond the actual dam site. Maintaining the existing Estabrook Dam impairs water quality and aquatic wildlife habitat. Creating a new hydropower dam will exacerbate negative environmental effects by most likely further increasing water temperatures and causing fish mortality in addition to restricting fish passage.
- Most of the viable hydropower sites in the US have already been constructed; sites that are left provide marginal power while putting tremendous strain on aquatic resources.
- There have been very few hydropower dams created in the last decade—most of which have been on very large rivers in Canada that have appropriate geology that have significant “drops” in elevation and huge capacities for electricity generation. These dams are also located adjacent to major metropolitan areas.
- Most hydropower dams licensed by FERC produce very little energy; 80% of dams produce less than 50 MW of power, which is enough electricity to power 50,000 homes. New hydropower facilities are functionally obsolete due to increasing strides in energy efficiency, creation of more promising renewable energy technologies including solar and wind power, and negative environmental impacts of hydropower.
- Even “small” hydropower units cause serious environmental damage while generating very little income (see attached fact sheet “Low Power, Big Problems” from the Hydropower Reform Coalition).
- The Milwaukee River is a small river for hydropower relatively speaking. Flows are highest in spring and winter, when energy demands are the lowest. Flows on the Milwaukee River needed to justify a hydropower plant are only seen rarely after storms and during spring snow melt, and do not justify the tremendous environmental damage that would be created by a hydropower dam.
- The costs of building new hydropower dams far outweigh the benefits. Building new dams in the name of “renewable energy” is not justifiable where there are significant impacts to water quality, wildlife habitat, recreation, and public health as is the case on the Milwaukee River.
- Hydroelectric licensing by the Federal Energy Regulatory Commission or FERC imposes a wide range of compliance obligations to ensure that power generation does not negatively impact the environment or recreational resources. In recent years, the licensing process has become increasingly complex, and failure to comply with regulations is increasingly costly (see attachment on “Challenges of Hydroelectric Compliance” by Dewey and LeBoeuf, LLP).
- The licensing process for hydroelectric dams requires compliance with a wide range of operational, environmental, and recreational concerns. The process is responsive to concerns of public interest groups and other individuals over environmental, recreational, and other impacts. Licensing a hydropower dam on the Milwaukee River would be highly difficult.
- Licenses require ongoing environmental monitoring and inspections, dam safety programs, and generally require compliance with state water quality standards, fish and wildlife protection, creation of shoreline management plans, and standards for minimum flows and erosion control.
- In addition to environmental monitoring, FERC conducts recreational monitoring to ensure compliance with requirements for reasonable public access and recreational use of lands and waters associated with hydroelectric dams. This often requires construction of canoe/kayak/boat navigation passage structures.
- Failure to comply with licensing requirements can result in assessment of civil penalties by FERC of up to $11,000 per day that each separate violation continues.
- Recent legal decisions state that States can impose conditions on FERC permits to protect water quality and “uses” of streams, including recreational and aquatic life uses, making licensing new hydropower dams a very onerous process. Of particular relevance is Supreme Court Decision-- PUD No. 1 of Jefferson County v. Washington Dep't of Ecology, 511 U.S. 700 (1994). This decision found that States are required by §401 of the Clean Water Act to provide a water quality certification before a federal license or permit can be issued for any activity that may result in a discharge into intrastate navigable waters, and that states are allowed to impose water quality standards and conditions to protect “uses”. The case involved a FERC permit for hydroelectric generation in Washington State, and as relevant here, the Court affirmed that State imposed water quality standards could include characteristic “uses” of waters including water used for fish migration, rearing, and spawning. See: http://www.law.cornell.edu/supct/html/92-1911.ZS.html
- Seeking Federal Stimulus money for hydropower generation on the Milwaukee River is short-sighted. It is time to diversify to new renewable technology, and ensure that Federal investments of taxpayer dollars do not jeopardize substantial past investments in watershed protection through careless short-term incentives for hydropower from new dams, diversions or impoundments.
Given the above facts as well as the County’s failure to adequately monitor and maintain the Estabrook Dam over the last decade, it seems highly unlikely or improbable that the County would either be able to receive a hydroelectric license from FERC or be able to comply with the extensive and costly licensing requirements. On behalf of Milwaukee Riverkeeper, we urge you to NOT fund short-term repairs to the Estabrook Dam at this time (especially if you are not formally committing to the $12-20 million dollars in necessary long-term repairs) or waste precious County Parks’ financial resources on an ill-advised hydropower study. Milwaukee Riverkeeper urges you to remove the Estabrook Dam, which will maximize benefits to the environment and minimize long-term economic costs to Milwaukee County (see attached Milwaukee Riverkeeper Position Paper).
I would also recommend that you watch the video Taking a Second Look: Communities and Dam Removal by American Rivers. Although making the decision to remove the Estabrook Dam will be a difficult one, the video does a nice job of profiling the decision by West Bend officials to remove the Woolen Mills Dam, as well as profiles decision-making and advice from two other dam removals in the US (the first 9 minutes cover West Bend). The video details how the removal of the Woolen Mills Dam led to the revitalization of both the Milwaukee River and Riverside Park in West Bend, and how local businesses and the community rallied together to make the former Dam site a community asset. Interestingly, the video also profiles a dam removal in Maine, where FERC ordered the community to remove their hydropower dam due to the fact that the energy benefits did not justify the environmental impacts. We’d also be happy to get you contact information for some of the West Bend officials featured in the video or put you in contact with other public officials in Wisconsin who have been in a similar position regarding making a decision on dam removal.
Please feel free to call me with any questions at (414) 287-0207 ext. 229. Thank you for your consideration of these comments.


