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Underground Explosion Closes Colfax Avenue Tuesday Evening

An underground explosion in Grass Valley Tuesday evening causes Colfax Avenue to be closed. Right around 5:30 a call came into dispatch of an explosion strong enough to lift a manhole cover had just occurred. Nevada County Consolidated Division Chief Jerry Funk tells KNCO fire crews responded immediately.

Click here to listen to Chief Jerry Funk

monitoring-manholeWith no smoke or flame visible, fire personnel took a precautionary role as Grass Valley Public Works attempted to locate the issue which could possibly be related to construction work in the area.

Click here to listen to Chief Jerry Funk

According to Chief Funk, initial air monitoring showed no unsafe levels of gas in the system.

Click here to listen to Chief Jerry Funk

Colfax Avenue was closed for several hours from the bowling alley to the turn at the softball fields while the system was checked and cleared. The cause had yet to be determined at 7:45 PM.


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