City of Mesa | Mesa, AZ
EPS Group was instrumental in the site engineering, traffic, and drainage design for the Chicago Cubs Spring Training Facility (Sloan Park), working in coordination with the City of Mesa and the Arizona Department of Transportation (ADOT). Located on the site of the old Riverview Golf Course, the ambitious project involved constructing a complex combination of project operation facilities, buildings, and fields. As a result, the site incurred a considerable increase in drainage volume. EPS successfully managed these drainage requirements to accommodate the proposed plan while preserving as much property as possible and providing responsible flood control design.
The project area covered the following:
- approximately 100 acres
- the addition of 3,300 feet of new storm drain
- 15 ac-ft of new retention basins
- numerous drainage inlets
- an overflow spillway feature with an ultimate outfall at the Loop 101 Freeway canal/drainage channel.
Design Strategies Save Project Costs and Preserve Land
Through ongoing coordination with the two primary stakeholders for the project – the City of Mesa and ADOT – the EPS Group design team was successful in preserving usable property. Additionally, the team avoided significant drainage facility costs by incorporating unique design strategies approved by both agencies. EPS Group recommended designing retention basins in several site locations for the ‘first flush’ volume, considering their proximity to ADOT channels. Any drainage exceeding the ‘first flush’ volume would overflow into the Loop 101 freeway drainage channel.
As a result of this drainage strategy, critical land was reserved for planned uses without the need for underground tanks. Moreover, this approach led to savings of over a half million dollars in infrastructure costs for the project
Coordination with ADOT was critical for the approval to use the existing Loop 101 and Loop 202 drainage channels to save costs for the project. Through detailed reviews of the existing freeway drainage channel designs and the freeway facilities, the channels were utilized as an outfall feature for the project. This strategic decision resulted in substantial cost savings and preserved valuable developable space. The image below shows the project site storm drain system outfall, which includes a new overflow spillway. Additionally, channel reinforcement within the ADOT right-of-way is depicted in the image.
EPS Group is proud to have been a part of creating this spring training facility which attracts thousands of tourists and local visitors who travel to Mesa for various events and recreational opportunities.
EPS Group Services
Site Engineering, Traffic Design, Drainage Design
Consequently, view the transportation and survey services on the Spring Training project here.