Boulder County today closed James Canyon to all non-residents -- including cyclists -- as repair work continues following the massive September flooding.

James Canyon will be closed effective immediately from Left Hand Canyon through Jamestown and to Peak to Peak Highway, according to a news release.

The county's high-hazard work is no longer in James Canyon, but large trucks and heavy machinery helping with private recovery efforts in the canyon pose a danger to motorists and cyclists, officials said.

“Thanks to warmer weather, a lot of work has been completed in James Canyon and in Jamestown,” Jamestown Mayor Tara Schoedinger said in a statement. “What we need now is to let residents and the people who have come to help rebuild have the room they need to do their job as quickly and safely as possible. With your help and patience, Jamestown will come back stronger than ever and once again be the beautiful mountain town that we all love to live in and visit.”

George Gerstle, Boulder County transportation director, said Left Hand and Sunshine canyons are both open and are better options for cyclists.

“If you don't live in these areas and aren't helping rebuild these hard-hit communities, you're probably obstructing recovery operations," Gerstle said in a statement.

For more information, contact Andrew Barth at abarth@bouldercounty.org or 303-441-1032.

Contact Camera Staff Writer Mitchell Byars at 303-473-1329, byarsm@dailycamera.com or twitter.com/mitchellbyars.