The proposed project is located in Maricopa County on SR 101L between the I-10 System Traffic Interchange and Indian School Road (Milepost 1.91 to Milepost 3.87) and on I-10 between the 99th Avenue and 83rd Avenue (Milepost 133.91 to 135.84). The proposed work consists of shifting the Northbound and Southbound SR 101L roadways and associated ramps to the outside, shifting Eastbound I-10 roadway and the associated ramps near the System Traffic Interchange outside, and constructing a new Direct High Occupancy Vehicle (DHOV) ramp roadway and bridge from the SR 101L median to the I-10 median, widening one SR 101L southbound bridge, constructing two new bridges for a new connection from 101L southbound to McDowell road, retaining walls, drainage, signing, pavement marking, lighting, landscaping, and other related work.