Riverside Park is a 100+ acre regional park that was destroyed by the flood events that ravaged Colorado in September 2013.  The flood not only destroyed the park and several structures, it also unearthed an abandoned  landfill that had been created along the banks of the South Platte river at the edge of the park.

THK was hired to develop a master plan to address the damage,  remove the landfill and restore and improve the park to pre-flood conditions.  The park is located within the historic floodplain, but projects over the years had isolated the park from the river.  In addition to typical park improvements like ballfields, playgrounds and trails, the master plan focused on restoring the riparian habitat along the banks of the river to help with future flood mitigation.

Following the approval of the Master Plan completed by THK in 2015, THK was contracted to complete final design and construction documentation for the entire park. Final design included repairing flood damage, removing an existing berm comprised of approximately 70,000 cubic yards of unsuitable soil (trash and waste from a former landfill), restoring approximately 10 acres of floodplain, raising the park road and ball fields to provide future flood resiliency and balancing grading efforts to achieve a no-rise certification in the floodplain.

Site amenities included 4 redesigned ballfields/ballfield complex, multiple shade structures, concession/storage/restroom building, playground, basketball courts, parking and recreational paths.  Riverside Park has become a recreational node in the region and hosts many baseball tournaments during the year.

THK also assisted the City of Evans in securing $15 million dollars in funding for design and construction of Riverside Park.  Construction in the Park was completed in September 2018.