Lyons Eastern Corridor Design Project

The Lyons Eastern Corridor Design Project, previously known as the McConnell to 36 Project, begins below the Highland Diversion outside the Town of Lyons downstream to Highway 36. The project is funded by the Natural Resources Conservation Service (NRCS) Emergency Watershed Protection (EWP) Program. The Saint Vrain Creek Coalition recently took on the management of this project and will be working closely with the NRCS EWP team to design and implement this important flood recovery stream project.

This project page will be updated regularly as the project progresses. If you would like to submit a comment on the project to be considered by our engineering team, CH2M, you can do so by emailing Erika Shioya or via the online form at the bottom of this page.

Updates (most recent: 12/20/2016): 

  • If you could not attend our first public meeting, which took place on December 15th in Lyons, check out our meeting recap page. Please submit your comments using our online comment form below!

Funding Informationmcconnell_general-project-area-map_112216
The NRCS EWP Program is a cost-share program administered for the State by the Colorado Water Conservation Board (CWCB). This program provides a long-term, holistic approach to stream and watershed recovery.

After the 2013 floods, the Natural Resources Conservation Service (NRCS) Emergency Watershed Protection (EWP) Program identified a number of high priority stream restoration project areas, one of which is the section of the St. Vrain from below McConnell Ponds in Lyons to US 36. As a priority reach, the Lyons Eastern Corridor project area is eligible for funding from the NRCS and CWCB for the design and implementation of a stream recovery project.

This funding is only for stream restoration work (in-stream improvements, bank stabilization, sediment removal, grading, revegetation, etc.). Funding cannot be used to complete work directly on infrastructure ( e.g., bridges, roads, diversion structures, etc.), or other structures that are privately or publicly owned (e.g., homes, garages, sheds, gardens, etc.).

Though the design will be fully funded through the NRCS and CWCB through the EWP Program, there is a cost-share requirement for the construction portion of the project. Construction costs are shared between federal, state, and local entities:

  • The NRCS will provide 75% of total construction (implementation) funding, which is the federal share of the project cost.
  •  The State of Colorado, through the Disaster Emergency Fund, will provide half of the non-federal share of the cost (12.5%).
  •  The local sponsor, SVCC,  will be responsible for the remaining 12.5% of the non-federal share of the project costs. This local share may be paid through cash or in-kind services or material.

At this time, the local sponsor portion of the construction funding has not been acquired, but the SVCC is working hard to locate an appropriate funding source to complete the project.

According to the NRCS EWP guidelines, the design for the Lyons Eastern Corridor project area must be completed by March 2017, so that construction can begin in fall 2017, and be completed by the December 31, 2017.

Detailed descriptions and maps which show all NRCS EWP project areas within the St. Vrain Watershed can be found on the SVCC website: You can also find more information on the NRCS EWP Program and all identified projects within Colorado by going to



Lyons Eastern Corridor Design Project Comments

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