T.Y. Lin International was selected to provide professional design engineering services for a new Metra parking lot at the existing 153rd Street Station and associated roadway improvements along 159th Street, 108th Avenue, and their intersection. The 153rd Street Station is along Metra’s SouthWest Service line (SWS) (Wabash, St. Louis, and Pacific Railroad) in Orland Park, Illinois.
The design of the new 715-space parking lot also included:
- A new access road – Jillian Road (approximately 1000 feet in length)
- Adding the east leg to the intersection at 108th Avenue and Jillian Road
- A pedestrian tunnel under the SWS
- Sidewalks along the proposed Jillian Road
- Geotechnical investigations
- Topographic survey
- Environmental review
The design of the parking lot and Jillian Road followed the Village of Orland Park guidelines. Coordination with the Village continued throughout the project with design of the parking lot, Jillian Road and drainage, a landscaping plan, planning commission and Village board meetings, and plan review.
The new pedestrian underpass was ADA accessible and connected the new west side parking lot with the existing Metra station on the east side of the tracks. The underpass was comprised of three-sided precast concrete arches supported on a precast concrete strip footing founded on piles. Two types of retaining walls were used for the grade differentials.
Coordination, from concept planning through detailed design, was performed with the United States Army Corps of Engineers (USACE) to mitigate impact to existing wetlands. A 404 permit for the entire project was prepared and submitted to USACE.
Detailed traffic studies were prepared to determine the needs for off-site roadway improvements necessary due to increased traffic flow in and around the station site. The results of the traffic studies were reviewed by Metra, IDOT, and the Village and incorporated into the design.
The project also involved the design of a rural three-lane cross-section along 108th Avenue, approximately 3,800 feet in length, including sight distance improvements. Left-turn lanes on 108th Avenue were provided at all side streets.
In addition, 159th Street was improved to allow additional left turn and through lanes at the intersection with 108th Avenue. A total of approximately 3,000 feet of 159th Street was impacted by the improvement.
Challenges associated with the project included staging construction of the pedestrian underpass to avoid interruptions of the Metra service, as well as extensive coordination of project design and construction with Collette Highlands (developer adjacent to project site), Cook County Highway Department, Metropolitan Water Reclamation District of Greater Chicago, Village of Orland Park, Metra, USACE, and IDOT.
- Special Achievement Award, 2009
American Council of Engineering Companies of Illinois (ACEC-IL)