WastewaterAkron Ohio Canal Interceptor Tunnel
A deep, small-diameter interceptor tunnel and consolidation tank system in karstic ground.
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Tunnel and underground projects, built and still standing.
Twenty-seven selected projects across four markets. Filter by market, or search for a project by name, location or service.
27 projects
WastewaterAkron Ohio Canal Interceptor Tunnel project details
WastewaterAnnacis Island Outfall System
A trenchless outfall and marine diffuser replacement delivered with the plant kept in service.
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WastewaterGolden Ears Force Main and River Crossing
A large-diameter force main including a difficult river crossing and deep urban shafts.
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WastewaterNewtown Creek CSO Storage Tunnel
A 2.6-mile deep rock CSO storage tunnel with six shafts, cutting overflow events by design.
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WastewaterArmy Bay Ocean Outfall Replacement
The longest pipeline drive ever installed with the Direct Pipe system at the time of completion.
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Energy & MiningBlue Lake Hydroelectric Expansion
Underground powerhouse and tunnel works for a hydropower expansion in remote Southeast Alaska.
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Energy & MiningGorge 2nd Tunnel
A high-pressure water conveyance tunnel for a major hydroelectric facility in the Cascade Range.
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Energy & MiningIowa Hill Pumped Storage Project
Underground powerhouse and headrace works for a pumped storage hydroelectric facility.
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Energy & MiningLong-Baseline Neutrino Facility
A 4.5-mile deep neutrino research cavern complex in a former gold mine.
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