USACE April 2021 Update

USACE April 2021 Monthly Update

1. Diversion Inlet Structure Construction

 Structure includes 3-50 ft. wide Tainter gates. Work resumed in late-February. Construction is 48% complete with a required completion date of 7 June 2023. Anticipated remaining schedule: 

  • 2020: Foundations/site work, control structure, dam walls. 
  • 2021: Complete dam walls, concrete piers, stilling basin and walls. Continue gate fabrication. 
  • 2022: Install bridge deck, gates, and operating machinery. 
  • 2023: Paint gates, seed. 
  • 2024: Turf established. 

2 Wild Rice River Structure Construction

 Structure includes 2-40 ft. wide Tainter gates. Work resumed in late-February. Construction is 25% complete with a required completion date of 20 October 2023. Anticipated schedule: 

  • 2020: Foundations/site work, control structure, dam embankment. 
  • 2021: Approach walls and apron, stilling basin and walls, preloads. Continue gate fabrication. 
  • 2022: Control building, dam embankment. 
  • 2023: Complete excavation, dam embankment, gate installation, seed. 
  • 2024: Turf established. 

3. I-29 Raise Construction

 Contract awarded to Industrial Builders, Inc. on 8 April 2021 for $67M; Notice to Proceed was issued on 16 April 2021. Required completion date NLT 1 January 2024. 

4. Southern Embankment – Reach SE-1 (Western Tieback) Design

 Contract was awarded to Tunheim Construction, LLC on 1 April 2021 for $2.2M; Notice to Proceed was issued on 7 April 2021. Required completion date NLT 30 June 2023. 

5. Red River Structure Design

 Structure includes 3-50 ft. wide Tainter gates. The design of this critical-path feature remains on schedule. The 95% review is scheduled to begin 10 May 2021. Final plans and specs are scheduled to be completed in late-August 2021. 

6. Southern Embankment – Reach SE-1B Design

 35% review scheduled to begin in early-June 21. 

7. Southern Embankment – Reach SE-2A and 2B Design

 The 95% design review is scheduled to begin mid-June 2021. Final plans and specifications are scheduled for November 2021. Reach SE-2B design began mid-March 2021. 

8. Drain 27 Wetland Mitigation Project Design

 The final design review is scheduled to begin 10 May 2021 and final plans and specs are due 30 July 2021. Award of a construction contract was scheduled for September 2021 but will be delayed due to land acquisition. 

9. Drayton Dam Mitigation Project

 The design has re-commenced with the goal of having final plans and specs in August 2021. This mitigation project includes replacing the existing dam to incorporate fish passage. The 95% review begins on 20 June 2021.