Drivers can expect traffic changes beginning Saturday at a major intersection in south Edmonton. Construction on the Capital Line South LRT extension will shift the intersection of 111 Street and 23 Avenue toward the northwest corner to accommodate drainage, utility, underpass and roadway work needed to prepare the permanent road alignment. The City of Edmonton said in a media release that all through lanes and turning movements will remain open during the change. The revised traffic configuration is expected to remain in place until late October or early November. Additional work near Century Park Station is expected to affect traffic starting Monday. Southbound traffic on 111 Street will be reduced to a single lane for about two weeks while crews complete drainage work. Northbound traffic will not be affected. Workers broke ground on the Capital Line south expansion in May last year. Phase 1 of the project will extend it 4.5 kilometres south and southwest from Century Park to the Heritage Valley Transit Centre and Park & Ride at Heritage Valley Trail and Ellerslie Road SW. Construction of the $1.38-billion Phase 1 is expected to take four to five years to complete followed by testing. The second phase will continue work to take the line to the Desrochers and Allard neighbourhoods. The route will run south alongside 111 Street, cut west just south of Anthony Henday Drive then continue southward west of 127 Street and run along James Mowatt Trail to 41 Avenue SW.