Caples: Columbia River Carbonates is constructing a new barge dock. Advanced American Construction is performing the work.  Work
includes pile driving operations and concrete placement. The M/V RUTH and Derrick Barge DB4100 will be on station NOW through 30 Apr
23 working 0700 – 1700, Monday through Saturday. Onsite equipment will monitor VHF-FM channels 13 & 16 during working hours. Mariners are
requested to reduce speed and avoid the work area.