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Cianbro rehabilitated 13 tainter gates, resurfaced the dam's concrete spillway, and replaced the original intake gates and bar screens (a mechanical raw-water filter).

• Cianbro:
  • Constructed an upstream cofferdam and downstream cofferdam
  • Removed all remaining shotcrete on the spillway crest and apron
  • Removed all deteriorated original concrete on the spillway crest and apron
  • Placed a reinforced concrete overlay over the entire spillway crest and apron, including drilling and installing dowels into the existing concrete
  • Removed and replace spillway tainter gate wallplates, sillplates, and guide rollers
  • Rehabilitated spillway tainter gate arm column structure bracing at designated locations
  • Rehabilitated spillway tainter gate arm leaf skinplate, welding, and coatings
  • Removed and replaced intake tower sluice gates and intake tower trashrack
  • Relocated cofferdams to facilitate the progression of work across the spillway
  • Performed miscellaneous concrete and metal repairs at both Brighton and Duckett Dams