Engineering the Answer: The Morgan Ridge Outfall Sewer Project

Morgan Ridge, a new residential development by The Land Company in Bennington, Nebraska, is one of many Sanitary and Improvement Districts (SIDs) managed by E&A. As civil design engineers, we design the infrastructure needed to create a complete neighborhood—including roads, utilities, storm sewers, and sanitary sewers. While some of this work follows established design practices, the Morgan Ridge Outfall Sewer posed a unique challenge for our team, requiring technical expertise and collaboration with nearby property owners and stakeholders.

Most of the subdivision could connect to an existing sewer. However, a portion—including a future Bennington elementary school site—sat too low to gravity flow into the nearest system. Instead, wastewater needed to be routed to an existing City of Omaha sewer line northeast of the development.

The City of Bennington’s master plan proposed a sewer route along a drainageway that crossed several large residential acreages. Securing the necessary easements along this alignment presented challenges, and the route also presented long-term maintenance and accessibility concerns for both the city and the SID.

After recognizing these challenges, our team created an alternative solution.

Construction of the siphon structure as crews prepare to bore beneath Big Papillion Creek.

We proposed a new alignment that would run along 156th Street before crossing The Heritage neighborhood’s common area and using a siphon to pass beneath Big Papillion Creek. The revised design resulted in a shorter, more practical route, though it required securing easements from five private properties, each with their own unique concerns.

Working with Stakeholders to Build a Better Solution

One property owner had recently completed construction of their home and had concerns about how the new development could affect their property. Through discussions with the owner, our team addressed their concerns and incorporated a sewer service stub into the design, providing the opportunity to eliminate the property’s septic system and connect to public sewer service in the future.

The Heritage Homeowners Association raised concerns about potential impacts to the neighborhood’s pond, irrigation system, windmill, retaining wall, and mature trees. Through meetings with our civil engineering and SID maintenance teams, we developed a solution: adjusting the alignment to avoid critical HOA infrastructure, committing to replace trees at 2:1 for those removed, and providing compensation for the easement to support future HOA maintenance needs.

The local fire department, which currently operates a pump station discharging into The Heritage sewer, asked if the new extension could eliminate the need for it. After surveys and evaluating elevations, our team confirmed a gravity connection was feasible. The department granted the easement at no cost, and the final design included a direct connection to the new sewer system.

Supporting Future Growth

E&A’s final design includes approximately 3,800 feet of sanitary sewer and a siphon under Big Papillion Creek. Construction of the outfall sewer began in April 2026. Once complete, it will serve Morgan Ridge and add capacity for about 200 additional acres of future development, supporting Bennington’s continued growth.

Projects like Morgan Ridge demonstrate that successful infrastructure solutions require more than technical design expertise. While engineering identified a feasible route and crossing, success depended on listening to stakeholders and finding creative ways to address concerns while meeting project goals.

By combining engineering innovation with proactive communication and collaboration, our team transformed a complex infrastructure challenge into a solution that will benefit developers, property owners, and the Bennington community for years to come.