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Blog - Building a Resilient St. Vrain

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Resilient St. Vrain: Restore & Revitalize

This blog shares everything from in-depth articles about the project to interesting photos of work zones. With a project as extensive as Resilient St. Vrain, something is always happening. Follow along as we build a Resilient St. Vrain!

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A Look Back: 2018 recap

JL
by Jennifer Loper12/24/2018 1:30 PM
Updated: 12/02/2019

2018 was a visibly productive year for the Resilient St. Vrain Project (RSVP). The Sandstone Ranch Reach was completed and reopened to the public in the spring, while City Reach 1 (east of Main Street) wrapped up midyear. Brief videos clips highlight before and after images in these reaches >

These two project components, along with related work to better protect the city’s Wastewater Treatment Plant from future flood risk, were selected as winners of the 2018 Sustainability award for Large Communities from the Colorado chapter of the American Public Works Association. Read more about the award >

RSV Sustainability award City Council presentation

RSVP construction moved west of Main Street as work began on City Reach 2A in August. Contractors immediately began clearing and widening the St. Vrain Creek channel between Main Street and South Pratt Parkway to safely convey flood flows up to a 100-year level. Cobble, which are 3- to 6-inch diameter stones (larger than a pebble, but smaller than a boulder), will line the creek channel to reintroduce the natural medium found along the creek and recreate habitat preferred by fish and wildlife.

Cobble lining St. Vrain Creek

Before year’s end, crews began setting concrete blocks for modular retaining walls west of South Pratt Parkway. The project’s design incorporates these walls to safely deepen the creek channel where it runs through more developed areas of Longmont, reinforcing its resilience to higher water flows.Resilient St. Vrain row of blocks of retaining wallTwo workers setting blocks for retaining wallResilient St. Vrain setting block on retaining wall

installing girders on South Pratt Parkway BridgeThe South Pratt Parkway Bridge replacement kicked off at the beginning of 2018, and crews will be putting the finishing touches on the new bridge as the new year begins. (Depending on weather conditions, final paving may have to be postponed to spring.) The bridge has remained open to travelers except for all but a handful of overnight periods when new bridge girders were delivered and set.

Keep up with RSVP happenings by subscribing to our quarterly newsletter, the Resilient St. Vrain Roundup.


  1. Updated: 12/02/2019
  2. Updated: 02/06/2019
  3. Updated: 12/26/2018
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