The City of Chicago Department of Transportation needed to make improvements to the Ashland Avenue viaduct carrying through traffic over Pershing Road; the existing urban viaduct was structurally deficient and in need of major repairs. The preliminary design phase included inspection of the existing viaduct to determine the extent of any immediate repairs and preparation of a bridge condition report. V3 also analyzed several design alternatives, including eliminating the viaduct entirely and replacing it with an at-grade intersection. This alternative was ultimately selected and Phase II plans and specifications were prepared. The project included complicated environmental assessments and remediation, as well as major utility relocations and right-of-way acquisition.