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Archive for Tuesday, April 9, 2013

Letter: Altered flow

April 9, 2013

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To the editor:

While a drought-depleted Kansas River flows into Lawrence, Bowersock Dam’s owners raise upstream pool elevation, building head pressure needed to operate both of their hydroelectric plants (one being new). Their river dam, recently upgraded, stands taller, enabling this pressure boost.

At Burcham Park, three city water intakes that always stood above the river during low flow conditions vanish underwater. Upstream at Riverfront Park North, gone now is the steady current that, during identical low flow periods, kept the public boat ramp swept clean of sediment and debris. Farther upriver and across from Westar’s Lawrence Energy Center, two current deflector jetties are partly overtopped by still water; a third jetty is submerged. Flowing eastward from Lecompton, the river’s steady current now begins stalling out 3 miles above Westar’s water intake structure.

Thus a for-profit impoundment suddenly extends 6 miles upstream of Lawrence’s downtown bridges, with 2 feet of dam height still unused. The return of median stream-flow levels will reveal how many extra miles of river channel the taller dam’s pool will inundate.

The longer, slower pool lets gravity capture migrating sand, triggering accelerated streambed accretion that helps regulatory agencies justify approving a commercial in-stream dredging operation. Meantime, two city parks get flooded more often; tall windblown waves erode saturated riverbanks; summertime cyanobacteria blooms sicken wildlife, domestic dogs and river recreationists while threatening Lawrence’s city water supply.

Predictable impacts appearing soon, thanks to political cowardice and regulatory dismissal that let corporate “greed energy” masquerade as “green energy.”

Comments

oneflewover 1 year ago

Wasn't Bowersock's house almost burned down by misinformed Lawrencians over flooding fears?

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bearded_gnome 1 year ago

ah yes, once again we see, green is often a scam.

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lcollard 1 year ago

The Kansas River ("Kaw") is technically listed as a "Publicly Navigable River". Bowersock Mills & Hydroelectric projects are private projects that were permitted to be built on a governmentally-regulated (by the US Army Corps of Engineers) public waterway. No, I don't believe there aren't any rent checks being sent back.'

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Clark Coan 1 year ago

Looks like the Law of Unintended Consequences. Since the People of Kansas own the land the dam and hydro plant are on, are we getting rent???

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Les Blevins 1 year ago

All very good points Joe. Head pressure is only half of what spins those turbines, the other half being stream flow. Stream flow has been so low lately that opening up the water to the turbines would drop the pool above the dam quickly. I think it’s becoming clear the new hydroelectric plant was not a well thought out project in light of the modified weather patterns that are emerging today.

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