Wilson's helicopters have supported crews and helped land specially designed spacer carts on the lines in order to successfully complete work.
Bonneville Power Administration
Spacer-Damper Replacement Project; OR, WA, MT
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https://www.wilsonconst.com/services/helicopter-services/item/57-bonneville-power-administration-spacer-damper-replacement-project-or-wa-mt#sigProIdc49c5d6746
https://www.wilsonconst.com/services/helicopter-services/item/57-bonneville-power-administration-spacer-damper-replacement-project-or-wa-mt#sigProIdc49c5d6746
Since 2006, Wilson has been conducting spacer-damper replacements on several Bonneville Power Administration 500kV transmission lines. The efforts have taken crews throughout Oregon, Washington, and Montana. Work has been performed in tight, mountainous remote terrain.