River restoration on the Elwha River after dam removal. Courtesy of Joel Rogers Photography. |
The many dams in Central Washington produce 70% of Washington's hydroelectricity. Courtesy of Columbia River History |
Big hydroelectric project on the Columbia River. Courtesy of the U.S. Department of Energy |
Rafting on the now free-flowing White Salmon River in Washington. Courtesy of National Geographic. |
The Elwha River Dam is being removed after collaboration between many stakeholders. Courtesy of National Geographic. |
While dams are often necessary and promote more good than harm, this bill assumes that all dams are good for local communities, the environment, and the country without question. However, there are some dams that are old, dangerous, in need of renovation, and kill many migratory fish each year. The bottom line is that this bill would set back collaborative, creative efforts across the nation to balance the water needs of humans and hydroelectricity with the needs of fish, wildlife, and industries (like recreation) that depend on healthy rivers. This bill unifies the country in preventing community-supported river recreation projects (like the Elwha River dam removals) and locks us into a 20th century model of energy at a time when communities are looking to modernize and manage our natural and energy resources in a "holistic and integrated fashion."
While it works for some aspects of resource management, it seems that this sort of one-size-fits-all management scheme will not work for dam removal. Every community is different; every dam is different. Each has its own priorities, situation, and needs, and imposing a blanket moratorium on dam removal is not the way to promote an economically-, environmentally-, and ecologically-sound future in hydroelectricity.
I think this is an increasingly relevant topic for the PNW, not only with respect to salmon population health, but also because energy generation is one of the main by-products of dams and has played a vital role in keeping carbon emissions relatively low in PNW states such as Washington State. In my Applied Stream Ecology class, we learned that the Golden Age of Dam Building occurred between the 1950-1980 when over 700 dams/year were built throughout the U.S. What's interesting is that ecology as a field of study was still incredibly young at this point and the seminal paper by Vannote on the River Continuum Concept was not published until 1980. This idea helped to explain many of the ecological principles we understand about rivers today, including connectivity, sediment transport, and the effect of impoundments like dams. Why this is applicable today is that most permits for dams last about 50 years, which means we will continue to see more decisions being made about the viability and economic feasibility of removing dams. Although this bill claims to save jobs and money, I think in many situations it would take a lot more money to maintain and upgrade the dams that are degrading and being declassified.
ReplyDeleteIt seems like Washington and other PNW states have relied on hydroelectricity as a renewable resource for far too long. Do you have any stats on how many dams are actually located in Washington in order to provide X% of its energy by hydroelectricity? Large hydroelectric generation is not classified as renewable resources at all in most states energy portfolios--only small hydro projects. Hydroelectric power is a luxury that most other regions cannot take advantage of and in my opinion has developed into somewhat of a crutch for the development of the PNW energy portfolio. Great topic!