Nobody can deny that new ideas and innovative concepts are a series of trial and errors. Before any success is a number of failures, taking lessons learned and adapting before trying again. The Wright Brothers attempts at manned flight had years of attempts and failures before that historic day at Kitty Hawk. The same principles are true when it comes to ideas and principles we base governmental decisions. You should not keep attempting to push legislation that clearly has not had the desired success or impact desired.
In Tim Hartford’s book “Adapt” he talks about this trial and error concept and how it can be applied to the way we look at many issues. Although much of his work is focused around the economy, I believe that we can apply these same concepts to an environmental issue that has politically divided much of our nation over this past 20 years.
The ability to innovate and to adapt has been something that throughout history has been proven to be a key requirement of success. Conversely, a failure to adapt has typically led to failure and obsolescence. We must be able to objectively judge the effectiveness of something and in this judging identify the appropriate “Identification Factor” so we can truly know when we are successful and its cause. If you have noticed that a particular plant grows better in the shade of a rook infested tree is it because that plant prospers in the shade of the tree or the increased nitrogen in the soil because of the bird droppings? Too often we have passed legislation that may have been with good intention but even now with more than a decade of trial and error we have failed to adapt or modify our attempts. Repeating the same failed attempts without allowing for deviation and experimentation is surely a sign of insanity. The issue I believe this concept needs to be applied to our river management theories and how those management practices impact endangered salmon and other riparian species.
I have no doubt that proponents of very restrictive land use and river management policy had good intentions when current practices were first proposed and enacted. They too were concerned with the dramatic decrease in salmon in our rivers and hoped to address and reverse the causes by more restrictive policy. The problem here is that this decline is what Tim Hartford would call a Fundamentally Unidentified Question. What these proponents identified as the cause of the rapid decline could not be proven and all it has led to is political debate and a failure to really apply research try new ideas and adapt. Just as we have debated climate change for over twenty years and have not produced one actual success, I have yet to see any documented impact that current river management practices have increased salmon or riparian recovery. We may have seen some improvements in areas where management practices were applied, but were those improvements a direct result of those improvements or the myriad of other factors that have equal or greater impact. In other words we have a failure to truly find appropriate identification factors for recovery. Without knowing what factors are the appropriate measurements for success we do not really know if our efforts are effective or a waste of our resources?
I do not doubt that some of our practices over the past hundred years did harm to the health of our rivers. I can agree with the thesis that we must combine land use practices and smart growth with our management of our rivers and river basin systems. We need to be good stewards and do everything in our ability to limit our adverse impact on riparian heath. However much of what we have tried over this past twenty years I believe has not only failed, but may in fact add to the negative factors we are trying to reverse. I will use the concept of allowing our rivers to remain as natural as possible and discouraging practices that might actually improve over all heath.
In the City of Pacific where I live is the White River. This river, a large tributary of the Puyallup River System flows off of the flanks of Mount Rainier in Washington State. This river has a long and colorful history in the region and was the topic of a virtual war between farming communities at the turn of the century. Dams would be built or levies dynamited to divert the river first north to the Green River flooding out Auburn and then south through Stuck Creek to the Puyallup saving Auburn but flooding Sumner and Puyallup. Finally as the result of the construction of Lake Tapps and its Power House for hydroelectric purposes the river was permanently diverted to the south. Federal Laws required that water drawn from a river for hydroelectric purposes must be returned to the same river. That would not have been possible flowing to the north. In 1948 Mud Mountain Dam was built to control flooding in the Puyallup River. Water would be withheld, reducing the impact until flood waters on the Puyallup itself subsided. Water would then be released until the next flood event.
Until the practice was stopped in the mid 90’s, sections of the White River near Pacific would be periodically mined for the gravel, first diverting the river to one channel and then the other. As a result of the Endangered Species Act this practice was stopped and the river allowed to return to a more natural condition. The problem is that this river moves more than 750,000 tons of gravel each year as it flows downhill off of Mount Rainier. About a mile up river of Pacific the slope of the river dramatically reduces causing much of the gravel and other debris being moved to be deposited near Pacific. In fact so much debris has built up over the past 20 years that the capacity of the river has been reduced from over 15,000 CFS of water to under 5,000. This reduction of capacity directly led to the flooding of over 100 homes in 2009, 65 of which were outside the 500 year flood plain designated by FEMA. The actual floor off the river has elevated 6-8’ causing additional flooding risk and reduction of capacity.
It has been shown that Salmon require water temperatures inside a certain range. When shade trees are removed or die off due to flooding or water becomes too shallow it has a tendency to warm up. It makes sense that if you influence deeper river channels, limit flooding by increasing capacity and promoting realistic river management practices you have increased opportunities to keep that water inside the range needed without increasing the risk of flooding.
As stated earlier, I support efforts to improve the health of our rivers and restore salmon runs and the health and habitat of other species. I just do not believe that our current practice of discouraging appropriate maintenance of our rivers is doing that. To date I have not found one study that documents our current practices success. In discussions of this issue with individuals from all sides of this battle I have not seen compelling evidence that our current river management practices have led to anything other than increased threats of flooding. I think it is time to apply the principles of Adapting and move forward from this Mexican standoff that we find ourselves in now. We do not need to rape the riverbed of all debris by wholesale dredging to remove debris. We can carefully scalp gravel bars during times of low water so that when flood waters rise the river has the capacity to move the water required without causing flooding. This issue does not need to be an either /or situation, we can make this a win-win situation. But first we need the political will for our elected leaders to stand up and recognize that current practices are not working.