Reach 4 Projects

Reach 4 starts at US 36 and goes upstream through Lyons along both the South and North St. Vran Creeks. This reach includes the Town of Lyons and areas just upstream to the choke in the canyon along the South St. Vrain and to Apple Valley along the North St. Vrain. The Town of Lyons was severely damaged during the September 2013 flood event. The Flood destroyed the Town’s electrical systems and wastewater treatment facility, and damaged or destroyed nearly 30% of the Town’s housing stock. When the floodwaters breached the Town’s wastewater treatment facility, Lyons’ water supply was contaminated. Additionally, multiple sections of the St. Vrain Floodwaters destroyed Lyons Public Works facilities and equipment, and the Town Hall and Library.

Due to the complexity of this reach, it is split into three sub-reaches: Reach 4a (Apple Valley area), Reach 4b (South Saint Vrain from Andesite Quarry downstream to Old St. Vrain Road), and Reach 4c (Town of Lyons proper to US 36).

Reach 4a

  • Creek Rehabilitation Plan for Apple Valley
    Apple Valley, an approximately 2.5 mile stretch along the North Saint Vrain Creek, was severely impacted in the 2013 floods, with loss of life and property, realignment of the creek channel, significant scouring, erosion, and deposition of large amounts of debris. The SVCC is managing the flood recovery work to be completed in Apple Valley. This project is currently in its planning and design phase, led by S2o Design and Engineering. The final 30% design will be complete by January 2017. The design portion of the project is funded by the Colorado Department of Local Affairs (DOLA) Community Development Block Grant – Disaster Recovery (CDBG-DR). For more information on this project, please click here.The construction portion of this project is only funded for the northern portion of Apple Valley at this time, though the SVCC and our partners are seeking funding for the southern portion. Construction for Apple Valley North funded by DOLA, the Natural Resources Conservation Service (NRCS) Emergency Watershed Protection Program (EWP), and the Colorado Water Conservation Board (CWCB). This project is an NRCS EWP project, and though most information for the project can be found on our website, there is more information on the funding sources and process available from the EWP program on

Reach 4b

    • Reach 4b Working Group
      The Reach 4b  Working Group was formed in May 2016 in response to stakeholder concerns about the many projects taking place in the reach. The first meeting was held on May 11 in Lyons. You can read more about that meeting and the outcomes here. At that meeting, the group had decided that they would like to wait until more of the projects in the reach were underway to meet again. The SVCC is currently in communication with members of the working group to determine the best day and time for the next meeting, estimated to take place in November 2016.
  • South Saint Vrain Project Area – SSV 1 & 2 
    South Saint Vrain Creek, between the Andesite Quarry to the Old South St. Vrain Road, is a project area being managed by Boulder County Parks and Open Space (BCPOS), who hired a design team led by Matrix Design Group. The design portion of this project is funded by DOLA’s CDBG-DR program. The 30% design has been complete and is under review. The final design for this project will be completed in early 2017.Within the design project area, there are two smaller reaches (SSV1 & SSV2)  which currently have funding for implementation/construction work. Construction is estimated to begin in 2017, and is funded by Boulder County, NRCS EWP program, and the CWCB. SSV1 and SSV2 are NRCS EWP projects. You can find a map of the two project areas and information about them on Saint Vrain Creek Coalition has provided with BCPOS with comments and feedback to be considered throughout their design process, which can be found below:
  • South Saint Vrain 3 (SSV3) Project Area
    The SSV3 project area extends from the existing Old South Saint Vrain Road bridge downstream to the Town of Lyons limits, and was one of the project areas identified as high priority by the NRCS EWP Program. The project is currently being designed by Otak, funded by the EWP Program. The project will have a 30% design plan by the end of 2016 and will move into construction shortly after that. For more information on the project, click here. The SVCC is currently accepting comments on the draft 30% design – you find the design plan set here and the narrative to go with the design plan here. Stakeholders who would like to provide comment to be submitted to the Town of Lyons on behalf of the SVCC can do so by emailing your comments to Erika Shioya.

Reach 4c

  • South Saint Vrain 3 Project Area 
    The South Saint Vrain 3 Project Area, managed by the Town of Lyons, starts directly upstream from Bohn Park in Lyons to the Old S. St. Vrain Road. This project is another NRCS EWP prioritized project, and is currently in its design phase, which is funded by NRCS EWP. The final design for this project will be completed by the end of 2016. The construction portion of this project is funded by DOLA, NRCS EWP, and CWCB. More information about this project can be found on SVCC will be providing the Town of Lyons with comments when they release the 15% and 30% design plans.
  • Confluence Area Project
    The Confluence Area Project is located from 5th Avenue east to the North and South St. Vrain Creeks, and includes Evans Street west of 5th Avenue, and 3rd Avenue from Evans Street to Park Street. The project, managed by the Town of Lyons,  includes the replacement of domestic water mains; replacement of sanitary sewer mains; installation of storm drains; reconnection of utility services; and the placement of concrete curb and gutter and asphalt pavement. The project is being conducted by DeFalco Construction. Xcel Energy’s contractor completed the gas line installation in July 2016, and now DeFalco is placing asphalt throughout the project area, according to a Town of Lyons eblast that was released on October 5, 2016.
  • Bohn Park Flood Recovery Final Design Project
    The Bohn Park Flood Recovery Final Design Project is located in the Town of Lyons, downstream from the confluence of the North and South Saint Vrain Creeks. This project, managed by the Town of Lyons, addresses fundamental goals outlined in the Lyons Flood Recovery Action Plan and the Lyons Parks Flood Recovery Planning Process for ensuring that Bohn Park continues to meet local and regional demands. This project, designed by S2o Design and Engineering, has completed its design phase and will move onto construction at a time TBD.
  • St. Vrain Creek Restoration Project
    The St. Vrain Creek Restoration Project, managed by the Town of Lyons, consisted of river way improvements including rock formations and re-vegetation to reintroduce wetlands, slow the flow of the river, and create natural areas for fish and plants to thrive and support recreational use of the river. The project also reestablished pedestrian paths and access points for river users. The project, which was completed in April 2016, was constructed by Naranjo Civil Constructors and was funded by the CDBG-DR program.
  • LaVern M. Johnson (formerly Meadow) Park
    On Friday, September 9, 2016 LaVern Johnson Park opened and was the first park to be restored since the 2013 flood. There is an abundance of recreational opportunities which include picnic areas, RV parking/tent camping, playground area, Lyons Whitewater Park, splash pad, an ice rink in the winter, there is plenty of room to escape and take in the beauty of Lyons no matter what the season. For more information on the park, visit the Town’s website.