Crews on Tuesday will be installing a new crosswalk designed to improve safety for students arriving at and leaving from Dry Hollow Elementary School in The Dalles. East 19th Street in front of the school will have traffic reduced to a single lane while the installation takes place. Flaggers will be in place, and delays should be expected. In addition, new crosswalk ramps to meet Americans with Disabilities Act requirements will be put in at 10th and Union on Tuesday. It’s the first of a number of ramps to meet ADA regulations that will be installed in The Dalles. 10th Street will be reduced to a single lane in that area, while there will be a full closure of Union Street between 9th and 10th. Business and residential neighborhood access will be open during the construction.