Michael D. Gossett

The Pipeline Less Traveled By: Resolving Design Challenges along a Trail through Critical Wetland Areas

Peter Brask, Chris Olson, Michael D. Gossett

The City of Boulder, Colorado, is installing a new 2.5-mi sanitary sewer transmission main to convey the majority of the city’s wastewater flows to the Boulder Water Resource Recovery Facility. The final mile of the 42-in. and 54-in. diameter interceptor runs through …

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Wait, We’re Really Considering a Tunnel? A Case Study on When Open Cut Was Infeasible

Peter Brask, Chris Olson, Michael D. Gossett

The City of Boulder, Colorado, is in need of a new 2.5-mi sewer transmission main to convey the majority of the city’s wastewater flows to the Boulder Water Resource Recovery Facility. On the upstream end of this project, a 2,000-ft section of …

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Together We Are Better: How Using CMAR Project Delivery for a Multijurisdictional Transmission Pipeline Benefits the Owner and the Community

Jon Wicke, Michael D. Gossett, Steve Pool, Keith Lemaster

Denver’s Metro Wastewater Reclamation District (Metro District or District) initiated the second creek interceptor (SD interceptor) project to provide a regional gravity solution to wastewater conveyance in the northeastern portion of the District’s service area. The project includes the design and construction …

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Siphon 1—Large Diameter Steel Aerial Pipe Replacement Evaluation

Keith R. Bushdiecker, Jon S. Fischer, Michael D. Gossett

Denver Water’s northern supply system makes up a large portion of its water portfolio. The Moffat Collection System, constructed in the 1930s, is the beginning of this system. It includes a series of canals, tunnels, and pipelines to collect snowmelt runoff from …

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Is It a Pipe or a Bridge? Large Diameter Aerial Pipe Design Considerations

Keith R. Bushdiecker, Jon S. Fischer, Michael D. Gossett

Over the past several years, Denver Water has been working to improve the reliability of its northern supply system which makes up large portion of its water portfolio. The Moffat collection system, originally constructed in the 1930s, is the beginning of this …

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You’re Going to Put a Pipe Where? Mitigating Public Opposition through a Combined Public Outreach and Right-of-Way Approach

Michael D. Gossett, Alexis Woodrow, Katie Angell

Denver Water is replacing an existing large diameter pipeline along an 8.5-mile route between a reservoir and a water treatment plant. Property easements for this pipeline were acquired initially more than 80 years ago and, since that time, the land within and …

Between a Track and a Hard Place—Thrust Restraint Alternatives in a Constrained Location

Keith R. Bushdiecker, Jeremy M. Ross, Michael D. Gossett

To make way for the redevelopment of Denver Water’s 35 acre Operations Complex, a 54-inch reinforced concrete cylinder pipe (RCCP) water transmission conduit required relocation, including the addition of an isolation valve and two new 90-degree bends to realign around planned buildings. …

PCCP Condition Assessment Methodology: What Is Right for You?

Michael D. Gossett, Graham E. C. Bell, Steven R. Fox, Keith R. Bushdiecker et autres

Established as a Union Pacific railroad tent town in 1867, Cheyenne, named for a local Indian tribe, is now a progressive city that celebrates both its pioneer heritage and tomorrow's technology. As a railroad and cattle center, Wyoming's capital and largest city …