UCA Tunnel Watch List

The UCA Tunnel Watch List spotlights the most important tunneling and underground construction projects in the United States, illustrating the positive impact these projects bring the public. Tunnels bring remarkable benefits to infrastructure projects, including sustainablity, reliablity and safety.


These 20 projects include well-known multi-billion dollar transportation projects that will eventually carry millions of people underground, as well as combined overflow sewage projects that very few people will ever see in the inside of.


2022 Tunnel Watch List

Banks Lake Pumped Storage Project Grand Coolee, WA Energy
Connector Conveyance Tunnel, Ph IIIC Providence, RI Wastewater
Continental Rail Gateway (Detroit-Windsor Tunnel) Detroit, MI Railroad
CSO Control Parallel Interceptor Newark, NJ Wastewater
Delta Conveyance Sacramento, CA Water
Gateway Tunnel Project NY/NJ Transit
Gordon Butte Pumped Storage Hydro Project Martinsdale, MT Energy
Harlem River Drive Ramp New York, NY  Highway
Horizontal Lateral Project Las Vegas, NV Water
Houston Flood Control Tunnels Houston, TX Wastewater
LA Westside Purple Line Extension - Phase 4  Los Angeles, CA Transit
Lowell Creek Flood Diversion Seward, AK Water
Ontario Int'l Airport and Cucamonga Station Tunnel San Bernardino, CA Transit
Red Line Blue Line Connector Boston, MA Transit
Sepulveda Pass Los Angeles, CA Transit
Silver Line Extension Boston, MA Transit
Steel Bridge Replacement Tunnel (Tri-met Tunnel)  Portland, OR Transit
US 64 Corridor K Tunnel Polk County, TN Highway
Vermont Transit Corridor Los Angeles, CA Transit
West Seattle Project Seattle, WA Transit

Selection Criteria

A number of factors were considered when selecting projects for the Tunnel Watch List including the cumulative benefits of the project both regionally and nationally with an emphasis on societal and environmental benefits and not just economic benefits. Geography was a factor as well as the need to help promote projects that may need funding or are particularly important to their local community, or any other reason to justify why the public needs to be aware of the need for this infrastructure.


Tunnel Watch List Selection Committee

Greg Hallet, Amalgamated Mining & Tunneling, Inc.
Greg Hauser, JCK Underground Inc.
Robert Goodfellow, Aldea Services Inc.
Mark Johnson, Jacobs
Erica Moonin, Moonin and Associates
Mike Rispin, Strata Worldwide
Michael Roach, Traylor Bros. Inc.
Jim Rush, Benjamin Media 
Grover Vargas, Sika Corp.
Michael Vitale, Mott MacDonald