Richmond Dam Spillway Replacement - Project Updates


8/6/2026

  • SFC continues to drive sheet piling on the upstream cofferdam.
  • There has been approximately 350' of sheet piling drove in the upstream cofferdam with roughly 175' remaining.
  • SFC is maintaining lake elevation of 1349’.
  • Foothills Contracting completed the working pad from STA 0+00 - 14+00.
  • Foothills Contracting started building the upstream cofferdam. That work is expected to finish end of this week or early week of 08/13/26.
  • Foothills Contracting will remove the existing bridge and spillway after the upstream cofferdam is complete.
  • Bauer Foundations finished the test seepage cutoff wall week of 07/15/26. The cutoff wall must cure for 10 – 14 days to allow the cutoff wall to harden and reach design strength.
  • Bauer Foundation started production of the seepage cutoff wall on 08/03/26. They will start on the south end and work their way north digging out earth material and filling the void with self-hardening slurry.
  • Bauer Foundation made two passes from south to north to complete their work.
  • Bauer started 24/6 work on 08/04/2026. This work schedule will remain until the seepage cutoff wall is complete.
  • Interstate Drilling and Cascade Drilling installed monitoring points and piezometers on the working pad.
  • Interstate Drilling is monitoring the piezometers daily to ensure there is no movement of the dam.
  • Hofland Engineering is collecting data from the 21 monitoring points that were installed on the working pad.
  • Hofland Engineering is also installing construction stakes as needed and getting topographic data from various aspects of the project.

7/24/2026

  • SFC Continue driving sheet piling on the upstream cofferdam.
  • SFC is maintaining lake elevation of 1349’.
  • Foothills Contracting will have the working pad completed from STA 02+50 - 14+00 by end of day 07/25/26.
  • Foothills Contracting will start building the upstream cofferdam week of 07/27/26.
  • Bauer Foundations finished the test Seepage Cutoff Wall week of 07/15/26. The cutoff wall must cure for 10 – 14 days to allow the cutoff wall to harden and reach design strength. After the cure period is over, Bauer will continue the Seepage Cutoff Wall working their way north.
  • Bauer Foundations is scheduled to start full production of the Seepage Cutoff Wall 08/03/26. They will be working 24/6 until the cutoff wall is completed.
  • Interstate Drilling and Cascade Drilling will install monitoring points and piezometers on the working pad starting 07/27/26. These points are utilized to measure movement of the working pad.
  • SFC's night work has been completed.

7/22/2026

There is a strong likelihood of heavy equipment/earthwork taking place on Sunday 07/26/26.

7/20/2026

  • SFC worked on the crane platform to support driving the remaining sheet piling for the upstream cofferdam.
  • SFC installed 1-30” pump with the help of Rain for Rent, that will be utilized to maintain lake elevation 1349’.
  • Lake Elevation as of 07/16/26 is approximately 1349’. SFC is pumping water currently due to the rain received last week.
  • Foothills Contracting started constructing the working pad from STA 02+50 – 14+00 on 07/15.
  • Bauer Foundations finished the test Seepage Cutoff Wall week of 07/15/26. The cutoff wall must cure for 10-14 days to allow the cutoff wall to harden and reach design strength. After the cure period is over, Bauer will continue the Seepage Cutoff Wall working their way north.
  • Bauer Foundations will continue working on the Guide Walls for the Seepage Cutoff Wall until the reach 14+00.
  • Interstate Drilling continues to monitor the Drive Point Piezometers.

7/8/2026

SFC has driven approximately 75’ of sheet piling on the upstream cofferdam starting from the south side going north. SFC will continue driving sheet piling after the crane pad is constructed.

  • SFC has driven approximately 75’ of sheet piling on the upstream cofferdam starting from the south side going north. SFC will continue driving sheet piling after the crane pad is constructed.
  • SFC will be moving the 3-30” pumps out of the way and installing 1-30” pump with the help of Rain for Rent, that will be utilized to maintain lake elevation 1349’.
  • Lake elevation as of 07/06/26 is approximately 1349’. SFC is not pumping water currently due to being at the target elevation. SFC will need to pump water as the lake elevation fluctuates.
  • Foothills Contracting will start work on the working pad from STA 02+50 – 14+00 on 07/08 or 07/09 pending weather.
  • Foothills Contracting will also build a crane pad for SFC to continue driving sheets the week of 07/07/26.
  • Bauer Foundations will finish the test Seepage Cutoff Wall the week of 07/06/26. The cutoff wall must cure for 10-14 days to allow the cutoff wall to harden and reach design strength. After the cure period is over Bauer will continue the Seepage Cutoff Wall working their way north.
  • Bauer Foundations will continue working on the Guide Walls for the Seepage Cutoff Wall until they reach 14+00.
  • Interstate Drilling continues to monitor the Drive Point Piezometers.

SFC would like to extend its sincere thank you to everyone who assisted with and responded to the fire that occurred on 07/03/26. SFC is especially grateful to the first responders and emergency response personnel for their quick action, support, and dedication during the incident.

6/26/2026

  • SFC Civil Constructors has received sheet piling for the upstream cofferdam. SFC will start driving sheets on 06/30/26 on the south side of the spillway near the road.
  • Lake elevation as of 06/25/26 is 1351.91'. Lake needs to go to 1349'. SFC expects to be at the 1349' by the end of next week (07/04/26).
  • Foothills Contracting will start building the working pad from STA 02+50 - 14+00. The working pad is built to allow the seepage cutoff wall contractors to have area to work.
  • Foothills will also build SFC a working pad for the crane to sit on to drive the remainder of the sheets.
  • Starting 07/13/26 SFC will be working 24/6 driving sheets for the upstream cofferdam. This work is anticipated to take about two weeks.
  • Bauer Foundation has started working on the guide walls for the seepage cutoff wall. They will have guide walls built and ready for the seepage cutoff wall test section by end of week 06/27/26.
  • Bauer Foundation will start constructing the seepage cutoff wall on approximately 06/30/26. They will build the test section from STA: 0+00 - 01+00.
  • After Independence Day weekend, Bauer will start construction on the remainder of the seepage cutoff wall. This work will be done working 24/6 for the duration.
  • Interstate Drilling installed four Drive Point Piezometers along the bottom toe of the dam to monitor movement.

6/10/2026

  • Auxiliary Spillway is nearing completion. The downstream erosion protection is the last element of the spillway to be installed. Foothills Contracting is anticipating that to be completed late this week or early next week.

  • SFC continues pumping water. Since the last project update, the lake has risen almost 2 feet due to all the rain the area has received.
  • Webster Scale milled the asphalt off the road from the bridge going south to the end of the project. Foothills Contacting stockpiled the millings in the borrow pit area.
  • Please note: This is an active construction site. For your safety, please stay out so workers can focus without needing to watch for visitors from the public.

5/19/2026

  • SFC Civil Constructors (SFC) is pumping water out of the Richmond Lake and into Foot Creek.
  • As of 05/18/26, the Lake elevation has dropped 1.5 feet.
  • SFC is currently driving sheet piling for the auxiliary low flow spillway.
  • Foothills Contracting is starting to strip the topsoil off the working area. They have started removing material on the auxiliary low flow spillway.
  • Webster Wild Seed has started installing erosion control around disturbed areas.
  • Utility companies continue working diligently to move their lines out of the construction area.

5/11/2026

  • SFC Mobilized to the project site throughout the week.
  • Rain for Rent brought pipe and pumps to the site. They are working on getting them operational. The plan is to turn pumps on Tuesday, 05/12/26 to begin dewatering Richmond Lake.
  • BX removed the guardrail from the project.
  • Roughrider Crane Service mobilized and set up the 275-ton crane that will service the project.
    Foothills Contracting mobilized in a few pieces of equipment in preparation of stripping topsoil.



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