Specifications include, but are not limited to: In January 2020, a Location/Design Concept Report (L/DCR) and Final Environmental Assessment (EA) were completed for the SR 30 corridor from the proposed SR 303L to SR 202L. The ultimate corridor improvements include construction of a 10-lane barrier-divided, access-controlled urban freeway that provides four general purpose lanes and a high occupancy vehicle lane (4+1) in each direction and a full system interchange with SR 202L. This project proposes to construct a segment of the initial phase of the freeway construction of SR 30. This project consists of the segment from 97th Avenue to 71st Avenue. The initial phase of freeway construction would construct the outermost six lanes (three in each direction, or 3+0), auxiliary lanes, and the outside shoulders of the ultimate typical section. An interim 8-foot-wide asphaltic concrete inside shoulder would also be included. The interim median would be a 50-foot-wide open-graded median with cable barriers. A detailed description of project work tasks is included in Section 400. The construction of this project is anticipated to be delivered by design-bid-build method. New features include: • Constructing three general purpose lanes in each direction throughout the project limits • Constructing a full diamond TI at 83rd Avenue • Constructing a full diamond TI at 91st Avenue • Possible construction of bridge spanning over gravel pit located west of 75th Avenue • Constructing the ultimate drainage channel on the north side of the freeway and drainage outfall west of the 91st Avenue Waste Water Treatment Plant • Constructing new ADA features where applicable • Installing FMS signage, signalization, lighting, other signing, and pavement marking, as necessary • Utility relocations within existing ADOT right of way and in arterial street crossings
