July 9, 2008
Work at the Milltown Dam continues as Envirocon excavators with hammer attachments break up the spillway, which is on track to be fully removed by fall. Check out the EPA’s recent updates, July 2 (PDF) and July 9 (PDF), for the latest on remediation activities.
A recent photo overview of the spillway removal and sediment excavation follows after the jump.
Spillway in the foreground and confluence of the muddier Blackfoot and the Clark Fork bypass channel. (Photos: Michael Kustudia)
Rubble from the spillway is trucked to the nearby old Tunnel Pond, where it is spread and eventually capped.
Meanwhile, excavation of contaminated sediments continues. More than a million tons have been shipped to BP-ARCO’s repository at the Anaconda Superfund site.
A closer look at excavation.
An excavated cell with old pine stumps from the original Clark Fork flood plain.
Aerial view of the Milltown Reservoir Superfund Site taken on June 18, 2008.
(Photo: Michael Kustudia / Gary Matson)