Sherpa Trail Design & Construction

Sherpa Trail Design & Construction

The Sherpa Trail was once a prominent pedestrian corridor on the University of Colorado – Colorado Springs (UCCS) Campus. The trail linked student housing with the main campus by traversing a hillside on the north end of the campus. Frequent storm events, steep trail grades and underlying bedrock compounded to cause progressive erosion of the existing crusher fines trail until it was deemed unsafe for student travel and closed by campus staff in 2015.

THK was contracted by UCCS to redesign approximately 400 linear feet of the Sherpa Trail to improve drainage, reduce erosion and design a resilient trail with a low environmental impact. The Sherpa Trail alignment has an average 15% slope and exposed bedrock on the hillside that contributes to increased destructive runoff during storm events. In order to ensure long term sustainability, it was essential to separate the natural drainage patterns in this area with the new trail surface.

THK used U.S. Forest Service standards and details to design an elevated boardwalk system that steps up the hillside for nearly 26 vertical feet and maintains a minimum six-inch separation from the bottom of the boardwalk to the top of the exposed bedrock, allowing natural drainage patterns and environmental function to remain, while providing a safe route for pedestrian travel along the steep grade. Interpretive signage was installed in four locations along the route to educate visitors about the unique environmental conditions of this area and new campus recreational programing aims to increase trail usage and further connect students with the environment on the UCCS campus.

Silver Plume Mountain Park

Silver Plume Mountain Park

The Silver Plume Mountain Park Master Plan was developed in 2023 by THK Associates, Inc. after the Town of Silver Plume purchased =/- 200 acres from the Jack Pine Mining Claim lands. These lands, in addition to other lands already held by the Town account for the 265 acre Silver Plume Mountain Park. The lands will be protected in perpetuity with a conservation easement held by the Colorado Historical Foundation.

The purpose of this Master Plan was to provide a guiding document for the preservation and management of the area which includes structures and artifacts from approximately 100 years of mining history in the area. The Park captures one of the most well-preserved cultural landscapes in the region.

The Master Plan looks closely at the existing conditions of the site. Several regionally important operations such as mining and quarrying were conducted the Park boundaries and many of the sites have completed inventory forms per the National Registry requirements. As a part of this project, ERO Resources completed and additional four inventory forms of cultural resources within the project.

The Master Plan developed goals and values of the property, and then provides detailed information for additional development and conservation of the site including security of the artifacts and oversight and stewardship plans for the Park. Finally, implementation plans were developed to include project partners, time frames and conceptual budgets for improvements and available funding sources.

The Master Plan will be used as a guiding document for the Town of Silver Plume Mountain Park Commission as well as the Colorado Historical Foundation to maintain the historical integrity of the site, provide additional recreational and interpretive opportunities, and monitor and document the site in the future.

Aylor Open Lands Master Plan

Aylor Open Lands Master Plan

Purchased by the city of Thornton in 2003, Aylor Open Lands is an approximately 140-acre undeveloped property located at 136th Ave and Quebec St. The property was owned by the Aylor family since the early 1930’s. The Aylors used the land for a variety of farming purposes over the years, providing the open space with a rich background in agriculture. When the City purchased the property from William Aylor, the water rights and lease agreements were all transferred into the City’s name. With its unique site features and history, the City understood the opportunities the site possessed for natural resource preservation and public use and enjoyment.

 To realize the full potential of the property, the city of Thornton partnered with Anythink Libraries in a shared venture to develop a new library/education center that could provide City residents additional education and recreation programming while preserving the natural open space. The City hired THK Associates, a local planning and landscape architecture firm with a background in balancing preservation and recreation, as a consultant to develop a Master Plan for Aylor Open Lands. Together the Design Team developed a vision and goals that would drive the development of the Master Plan.

Given Aylor Open Land’s proximity to a handful of privately owned parcels in unincorporated Adams County and two adjacent Thornton residential neighborhoods, the city of Thornton wanted to ensure that public engagement in the project started early and continued throughout the Master Plan process. The City also wanted to make sure that all of Thornton’s residents and surrounding community had an opportunity to be involved in the project since there was the possibility of a new education center.

The Master Plan provides the structure for Aylor Open Lands to become a regional and local destination for the City of Thornton and its community members to enjoy. While the recommendations provide the City a guide to develop the site, the partnership with Anythink Libraries provides the opportunity for robust educational and recreational programming that can be managed effectively and provide a unique experience for visitors of Aylor Open Lands.

Austin Bluffs Open Space Master and Management Plan

Austin Bluffs Open Space Master and Management Plan

Totaling approximately 600 acres, Austin Bluffs Open Space encompasses an interconnected group of parks and open spaces in the center of Colorado Springs. Austin Bluffs Open Space Master and Management Plan was completed to balance the desired recreational uses of the open space with the preservation of natural resources.

The Plan Goals, Existing Conditions Report and public input helped shape the Master Plan.  Preservation and protection of the natural and cultural resources were key master plan goals. A Public Input Survey identified the natural and cultural resources as major reasons users enjoyed visiting the Open Space. Trail location opportunities were revealed by understanding existing trails and use patterns and identifying areas for protection and preservation. The key concept in the ABOS Plan was to create a sustainable and manageable trail system for current and future users.  Additionally, the plan called to formalize, improve and expand the existing trailheads and provide appropriate access to and from neighborhoods and UCCS campus.

The Austin Bluffs Open Space Master and Management Plan was adopted by the City of Colorado Springs June, 2020.  $220,000 was allocated in 2022 to begin construction on 4-miles of new trails, improvements to current trails and closures to rogue trails.

Riverside Park

Riverside Park

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.