Two T.Y. Lin International Projects Win 2022 ACEC California Engineering Excellence Merit Awards
T.Y. Lin International (TYLI), a globally recognized full-service infrastructure consulting firm, announces that the Oso Parkway Bridge Project on SR 241 in Orange County, California, and the 24th Street Widening Project in Bakersfield, California, have received 2022 Merit Awards (Transportation category) in the American Council of Engineering Companies of California (ACEC California) Engineering Excellence Awards (EEA) competition.
ACEC California's annual EEA competition recognizes outstanding achievements in engineering and land surveying projects completed by California firms. Projects were recognized for demonstrating an exceptional degree of innovation, complexity, achievement, and value.
About the Oso Parkway Bridge Project:
TYLI provided final design services to the project owner, Transportation Corridor Agencies, and worked closely with the California Department of Transportation (Caltrans) and County of Orange, for the Oso Parkway Bridge Project on SR 241 in Orange County.
Opened in January 2021 on an extremely accelerated schedule, the Oso Parkway Bridge provides vehicular traffic with a direct connection between Los Patrones Parkway and SR 241 and significantly improves safety, connectivity, and traffic flow. Previously, drivers had been forced to access SR 241 or Los Patrones Parkway by exiting via an off-ramp, waiting at a signalized intersection, and using an on-ramp to access either roadway.
The bridge provides six lanes (three in each direction) and dedicated bike lanes and pedestrian sidewalks to enhance user safety. A new sidewalk was also constructed on the south side of Oso Parkway for students to access the adjacent Tesoro High School.
TYLI's final design also involved local roadway improvements, including asphalt pavement, a storm drain, curb and gutter, sidewalks, Americans with Disabilities Act (ADA) improvements, utility relocations, signing, striping, drainage improvements, and traffic signal modifications.
Project challenges included significant utility relocations due to bridge construction and right-of-way (ROW) processing requirements. Additionally, drainage design had to meet Orange County and Caltrans standards based on various ownerships and ROW within the project limits.
TYLI also provided design support services during construction (DSDC) to the County on an as-needed basis. Staged construction included pedestrian detours to maintain a travel path for students at the adjacent high school during each construction stage.
About the 24th Street Widening Project:
TYLI served as the Prime Consultant for final design services for the widening of two miles of SR 58 and SR 178, also known as 24th Street, through a residential and retail/commercial area in a rapidly expanding area of Bakersfield, California.
Designed to improve traffic flow and drainage, the project added one lane in each direction, with a shifted roadway alignment in the western half of the project. Widening improvements were also made at the SR 99/SR 58 Interchange, including the construction of a tieback wall and ramp widenings.
The project, completed in September 2020, also incorporated significant landscape and aesthetic improvements in the residential areas. Improvements include new city signage for drivers entering the downtown area and new sound walls to reduce noise pollution.
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