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Boise River "channelized" during construction

Posted at 6:37 PM, Jan 06, 2016
and last updated 2016-01-06 20:37:20-05

Crews are making headway demolishing the Broadway Bridge and they have a unique way of keeping one of Boise's gems - the river - free of debris.

Before tearing down the bridge, crews have dammed up half the river. The newly-dry land gives excavators the opportunity to attack from above and below the bridge. It also prevents debris from polluting the river.

"You can see there is a dam like structure behind us and that keeps the water out of the construction zone but it keeps debris out of the river,” explained ITD spokesperson Jennifer Gonzalez at the construction site. “This process is called channelization and will be in place throughout the process."

Demolition of the bridge is expected to last 20 days. The replacement bridge will have three car lanes and a bike lane in each direction. ITD hopes to have it done in time for the b-s-u football season opener.