The Dalles Public Works Department crews are expected to complete stage two of a stormwater system main installation at the intersection of West 10th St. and Walnut St. tomorrow.  On Thursday crews are expected to move to stage three of the project which will see the system main installed on West 10th between Walnut and Snipes, requiring a full closure of the section of street for up to eight days.  Through traffic will be detoured to West 7th via Walnut and Snipes.  Traffic control and closures will remain in place until completion of the work.  No parking will be allowed within the work area due to heavy equipment use and the location of the trench.