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March 7, 2016

Lefthand Canyon construction update for March 7, 2016

Hello Lefthand Canyon Reconstruction Listserv Subscriber -

Construction continues to move along on schedule. As you may have seen, various activities are taking place all along the road between Olde Stage and just west of the intersection with James Canyon. Crews are making quick work of the two bridges in this stretch and are hoping to begin prepping an area east of Olde Stage so they can get rolling on the third of four planned bridges. The photo below shows the bridge at the confluence of James and Lefthand creeks where crews were just starting to pull the forms to fully expose the footers and abutments.

New bridge in Lefthand Canyon at James Creek

In addition to the bridge work, the contractor is pressing on with the excavation work that is needed to move the road away from the creek. The rock that they are removing from the hillside is being reused to strengthen the creek-side of the road, which you can see in the photo below. Starting this week, the stacks of large boulders will be grouted to add additional strength and then will be covered with soil and revegetated later this spring.

Rip Rap on the creek side of the road

Travel impacts this week, will be exactly like last week. Normal weekday canyon closures between Olde Stage and James Canyon with 5 to 15 minute delays just west of the intersection and 30-minute closure windows on Saturdays. The delays west of James Canyon are necessary so crews can excavate and install new culverts under the roadway that will funnel water from the hillside and into the creek. The photo below shows one culvert installation that took place last week.

New culvert under Lefthand Canyon Drive

I apologize if your travel was delayed by this culvert install. Crews will do their best to keep this to a minimum.

As always, please do not hesitate to contact me if you have any questions, comments or concerns.

Thank you, and have a good week.


Andrew Barth
Boulder County Transportation