Stanley Consultants Select Innovative Project Experience

I-19 AJO Way (SR 86), Traffic Interchange - Tucson, Arizona Department of Transportation

I-19AJOWAY.jpgSingle Point Urban Interchange (SPUI). The project includes widening of I-19 southbound lanes from Ajo Way to Irvington Road, a new Irvington Road southbound off-ramp braided with the Ajo Way southbound on-ramp, a new bridge structure on Ajo Way (SR 86) over I-19, retaining walls, and noise walls on both sides of I-19 from north of Irvington Road to south of Ajo Way. Extensive utility relocations included Tucson Electric Power, CenturyLink overhead and underground facilities, Cox Cable, City of Tucson fiber line, Southwest Gas, and new City of Tucson water and PCRWRD sewer mains along with utility disconnects and reconfigurations due to new right-of-way acquisitions.

This project replaces an existing partial cloverleaf interchange at Ajo Way (SR 86) and I-19 with a new modern

Project Features
• Innovative Ideas • New replacement Traffic Interchange Underpass on existing Interstate • Construction Sequencing and Traffic Control • Retaining Walls • Interchange Lighting and Under Deck Lighting • On–site and Off–site Drainage and BMP • Signing and Pavement Marking• Landscaping and Erosion Control • Crossroad Improvements

Click to View Arizona DOT I-19 AJO Way (SR 86) Project Description
Click to View Interactive Google Earth Map

I-17 Projects


Click to Download I-17 Project Description (PDF)
Click to View Arizona DOT I-17 Press Release

Click to View I-17 YouTube Video
Click to View Interactive Google Earth Map

I-40/US 93 West Kingman TI - EPS Group (Client), Arizona Department of Transportation (Owner)

I-40_US93.jpgWith the US 93 Wickenburg Interim Bypass and the US 93 Hoover Dam Bypass projects complete, the I-40/US 93 West Kingman System Interchange was the last remaining project of regional significance “hot spot” between Phoenix and Las Vegas. As the structures subconsultant, Stanley Consultants responsibilities included all structures design concept and constructability efforts for potential two-phase construction. The first phase provides the east half system interchange for Arizona/Nevada travelers, while the second phase provides the west half system interchange for the California/Nevada travelers via Kingman, AZ. Although there is a possibility that the second phase is long deferred, or not needed, the FHWA required that all directional movements be accommodated in right-of-way identification and ramp alignment design.

Stanley Consultants was retained to provide structural and traffic engineering support, including the Change of Access Report (COAR) and the Bridge Concept Study Report for the interchange alternatives considered.

Click to View Arizona DOT I-40/US 93 West Kingman TI Project Description
Click to View Interactive Google Earth Map