US-169, City of Owasso / Oklahoma Department of Transportation
This project will add capacity and improve traffic operations along this seven-mile section of US-169 in Tulsa County, Oklahoma. The project includes six urban service interchanges and frontage roads, 19 bridge locations and six bridges for Bird Creek and overflows. The process included data gathering, analysis of existing infrastructure and traffic operations, roadway widening, bridge design and interchange improvements. The design includes widening US-169 to include three driving lanes in both the eastbound and westbound directions while preserving existing infrastructure when feasible. EST provided the traffic analysis and engineering, survey, right-of-way footprint, roadway and bridge design, environmental studies and NEPA documentation.