From the DWCD website (http://doloreswater.com/releases/), this status report:
The temporary equipment bridge (the low clearance one) was removed Thursday afternoon March 30. No intermittent closures are expected for a week or two. When a more definitive start date is available CDOT will provide notice. Please see their website at https://www.codot.gov/news/2017-news...egin-mid-april
and look for signs, spotters and other guidance from the contractor, SEMA Construction, when the intermittent closures are active.
This CDOT link has more info and background:
DWCD and CDOT will update as needed.