I-80 and I-215 Renewed Design-Build

The I-80/I-215 Renewed Design-Build Project replaced pavement and drainage on I-80 and I-215, added eastbound lanes on I-80, rehabilitated and widened the I-80 bridge at 2300 E., and demolished and reconstructed three large structures on I-80: the 1300 E., 1700 E., and 2000 E. bridges. This project improved some of the busiest portions of I-80 and I-215 through Salt Lake City. I-80, in particular, as an Average Daily Traffic of 120,000, creating challenges related to limited right-of-way, construction footprints, and UDOT's top goal of maintaining public mobility during construction.

At 5 million lbs., the 1300 E. bridge is the largest structure slid in Utah. The team advanced new design and construction technologies and approaches in Utah to execute this bridge slide, many of which used concrete. For instance, lightweight drainage catch basins and pipes that were installed and suspended from approach slabs and slid with the bridge.

Bridges and walls were designed for a consistent aesthetic match with the existing features on I-80 and I-215. New noise walls matched the exposed aggregate design of the noise walls along I-80.

Architectural concrete used on both substructure and superstructure concrete elements along with adjacent MSE wall panels to provide a cohesive rustication theme through the corridor. Bridges and walls included painted elements to blend with surrounding features.

Design of abutment walls provided an interface between the permanent and temporary abutment wall that eliminated multiple concrete placements and added cold joints for final/permanent concrete features. The team revised the bridge abutment backwall design to improve constructibility and provide improved concrete consolidation around reinforcing and girder elements.

Lightweight fiber reinforced concrete was used for the bridge superstructures, and a polymer overlay was applied to the bridge decks. The team used a high performance rapid set concrete on the second phase of the sleeper stem of the 1300 E. over I-80 bridge to minimize traffic impacts.

The team designed the abutment cover plate to improve performance of the abutment backfill and protect bridge bearing pads. The design allowed full removal or incorporation of all bridge slide system components.

Altaview Concrete was the project's concrete supplier, and is a NRMCA member company (proof of membership provided as upload). The General Contractor, Ralph L. Wadsworth Construction, is a member of the local chapter.