The Cherry Creek Stream Restoration project at the extension of Dransfeldt Road is award-winning for its exceptional integration of environmental restoration, flood risk reduction, water quality improvement, and protection of infrastructure in a rapidly urbanizing area of Parker, Colorado. The stream restoration project spans a one-mile reach of Cherry Creek and 1800 lineal feet of the adjacent KOA tributary, reversing years of stream degradation while supporting major transportation and recreational enhancements.

A core accomplishment of the project was the transformation of an unstable, degrading stream corridor into a resilient and ecologically functional corridor. This was achieved through innovative use of geomorphology-informed design elements, including constructed riffle and boulder cascade grade control structures, bank protection using bioengineering, strategic reconnection of the stream to its adjacent floodplain benches, and an intricate planting plan ranging from wetland generation to riparian benches to upland prairieland. These measures stabilized the channel, while providing improved habitat for riparian vegetation and wildlife and improved water quality through filtering and infiltration.

The project also delivered significant floodplain and stormwater management benefits. Advanced 2D hydraulic modeling was used to evaluate flood risk under complex conditions, including a skewed bridge alignment and varying overbank flow paths while minimizing impacts to adjacent insurable structures. Notably, these efforts will enable the future removal of a large parcel from the regulatory floodplain, unlocking opportunities for future development without compromising flood resilience.

The channel stabilization project worked in parallel with the extension of Dransfeldt Road which included a new 690-foot vehicular bridge over Cherry Creek. Muller coordinated closely with another nearby project to ensure seamless integration of the stream restoration project while continuing to meet transportation goals. By co-locating the stream and road design work, the team minimized environmental impacts while delivering efficient infrastructure that meets long-term regional connectivity needs.

Stormwater runoff from the newly constructed roadway is conveyed through one of three facilities (two full spectrum detention basins and one sand filter) located adjacent to the roadway. These facilities provide water quality treatment and peak runoff attenuation, both key in maintaining the resilient nature of Cherry Creek. 

Recreational access and community enhancement were also key outcomes from this project. The Cherry Creek Regional Trail was preserved and improved by relocating sections impacted by expansion of the riparian corridor and new trail crossings over Cherry Creek and KOA Tributary were added to enhance connectivity. The groundwork for a future regional park was also established by providing water quality facilities designed to accommodate both stormwater treatment and recreational amenities.

This project stands out for its high level of cooperation among stakeholders including the Town of Parker, the Mile High Flood District (MHFD) and the Cherry Creek Basin Water Quality Authority (CCBWQA). In addition, a strong partnership was made between Muller and RS&H along with multiple engineering subconsultants, private landowners, and construction contractors—each contributing to a shared vision that balanced infrastructure, ecology, recreation, and development. This collaborative approach, combined with technical excellence and thoughtful long-range planning, makes the Cherry Creek Restoration Project and Dransfeldt Extension projects a model of integrated, sustainable design worthy of recognition.