A combination of snow melt and rain has elevated the Columbia River level and the river has overtopped the banks in some locations. The Union Street Undercrossing will be closed to all traffic at times until further notice due to the high river level, which is causing water at the undercrossing to be deep enough to be hazardous to vehicles, bicyclists and pedestrians.
According to the Corps of Engineers, which operates the dams, the high water level of the Bonneville Pool is necessary for flood control due to recent rain and snow melt.
When necessary, Union Street northbound will be closed to through traffic at the railroad tracks, and will be completely closed north of the Hattenhauer access road (111 West First Street). Intermittent access to Lewis and Clark Festival Park will be open as river levels allow.
Approaching the undercrossing from the west side, West First Street will be closed to through traffic at Terminal Way and will be completely closed beyond the employee access to the Oregon Cherry Growers Riverside facility.
Motorists, bicyclists and pedestrians are encouraged to use Webber Street as an alternate route to access West First Street and the west section of the Riverbank Trail during times the underpass is closed.
This closure may be periodic and sometimes sustained for several days during the spring water runoff times.
Please be alert to traffic control detour signs and for your safety do not enter the road closure area. For more information go to thedalles.org/transportation . If you have questions or concerns, please contact the Public Works Department at (541) 296-5401.