Saying it has to do something to meet the area’s growing demand for electricity, the Bonneville Power Administration is considering a new 500-kilovolt power line in Clark and Cowlitz counties of Washington.
The new line, roughly 70 miles long, would run from Castle Rock, Wash. to Troutdale, Ore. The actual length would depend on which route was chosen. One of the options follows an existing BPA transmission line. But the agency is also looking at several possible new routes, most of which cut through parts of the Gifford Pinchot National Forest.
BPA’s Michael Milstein says the area has become a bottleneck to moving power into the Portland-Vancouver region and along the I-5 corridor. He says BPA has taken several steps to increase capacity without a new power line, but adds, “The pipes are full.” He says building the line would also make it easier to integrate renewable energy from the massive wind farms of Eastern Oregon and Washington.
A BPA Fact Sheet on the project says that if the line isn’t built, increasing demand for electricity could tax the system and possibly lead to blackouts.
Without a specific proposal before us, it’s hard to say what kind of impact this new line could have on the region. Milstein says these kinds of transmission lines generally have a right-of-way about 150 feet wide. The towers are generally 80 to 150 feet tall. BPA has notified landowners in the area, but it’s still working on more detailed maps.
It’s important to note that we’re very early in the process. Starting Tuesday, BPA is holding a series of public meetings in the area. The meetings are part of what’s called the scoping process. This is where BPA figures out what issues need to be studied in an environmental review. Milstein says the earliest construction would start is 2012.
For more information, see the BPA’s I-5 Corridor Reinforcement Project website. Meanwhile, here’s the public meeting schedule for this week and next.
Tuesday, Oct. 27, 2009
4 to 7 p.m.
Amboy Middle School
Amboy, WA
Wednesday, Oct. 28, 2009
4 to 7 p.m.
Clark College, Gaiser Student Hall
Vancouver, WA 98663
Thursday, Oct. 29, 2009
4 to 7 p.m.
Mark Morris High School
Longview, WA 98632
Tuesday, Nov. 3, 2009 4 to 7 p.m.
Liberty Middle School
Camas, WA 98607
Thursday, Nov. 5, 2009 4 to 7 p.m.
Gresham Holiday Inn
Gresham, OR 97030
Saturday, Nov. 7, 2009
1 to 4 p.m.
Hazel Dell Grange
Vancouver, WA 98665