Rebar and Scaffolding Inside Concrete Shaft, I-35W Stormwater Facility
Interior of MnDOT I-35W stormwater storage tunnel showing concrete walls, metal catwalk, and circular opening above.
This concrete shaft forms part of the I-35W Stormwater Storage Facility in Minneapolis, a underground system built to hold excess runoff and reduce flooding along the I-35W corridor. Steel rebar cages line the upper section of the shaft, forming the reinforcement grid for the poured concrete walls that will bear the load of the structure above. A scaffold stair tower provides construction access up the shaft's interior, while temporary piping routes water or utilities during the build. MnDOT oversees the project as part of broader infrastructure work tied to the I-35W corridor in downtown Minneapolis.
Photo taken in February 2022.
