Client John Mahoney Architecture
Location Gilbert, Arizona
Scope 14-acre auto dealership

Earnhardt Dodge/Chrysler/Jeep

Project Details

Westwood’s Role

  • Surveying
  • Entitlements 
  • Civil Engineering
  • Construction Administration Services


As one of the largest Dodge/Chrysler/Jeep dealerships in Arizona, this site is 14 net acres located in the San Tan Auto Mall in Gilbert, Arizona. This showcase dealership is one of two dealerships located on either side of the elaborate and unique main entrance to the auto mall. Westwood’s team was selected for the project due to our significant design experience with auto dealerships, and more specifically, the San Tan Auto Mall.  

Enhanced Utility Infrastructure and Stormwater Management

Due to the size of the dealership’s main building, the existing public utility infrastructure in the adjacent streets were not sufficient to meet the needs of the site. Westwood’s team provided significant infrastructure design and installation support for the project to ensure the site requirements were met.  The design included the installation of more than one-quarter mile of 8” water main to support the site’s fire protection requirements. Westwood also provided grading and draining design, as well as stormwater management solutions. To convey the onsite drainage, the team incorporated a system of two acre-feet of landscaped stormwater basins combined with one acre-foot of underground 10” diameter CMP storage tanks and approximately 1,200 feet of underground storm drain pipes. All of these features work together to manage water flow.