Our Featured Projects
Showcasing successful civil and traffic engineering projects.
Soledad Front Street Enhancement Project (2023-2024)
Location: Soledad, CA
TL Engineering is providing professional engineering sub-consultant services to Harris Associates for the enhancement and rehabilitation improvement services along Front Street from Nestles Road to the US Highway 101 Northbound Ramps intersection in the City of Soledad, California. The project includes the rehabilitation of the street pavement within the limits of the project (approximately 7,200 feet). The project also focuses on walkability and pedestrian safety to improve safety and to invite the community, making this corridor attractive for all ages in the city. The scope of work for TL Engineering on this project consists of providing photometric analysis to assess lighting levels throughout the corridor and providing recommendations on ways to improve the lighting system, which will provide a safer corridor for pedestrians. TL Engineering will also be performing traffic signal modifications at four signalized project intersections to upgrade the signals from inductive loops to video detection. Finally, TL Engineering will be providing QA/QC services to assess the design (to be completed by Harris Associates) with regard to ADA compliance, traffic engineering compliance, and overall pedestrian mobility and safety. The project design and construction are anticipated to be completed in 2023.
Morgan Road Safe Routes to School & Pavement Rehabilitation Project (2022)
Location: City of Ceres, CA
Leo Trujillo and staff provided civil and traffic engineering design services for this Safe Routes to School (SRTS) project in the City of Ceres. The project included a complete restriping of Morgan Road between Service Road and Whitmore Road (approximately 1 mile). As part of the striping modifications, buffered bike lanes were added. All existing curb ramps not compliant with current ADA requirements were upgraded to be ADA compliant. Sidewalk improvements were provided to close gaps in the sidewalk and/or repair areas of damaged/broken sidewalk. Roadway widening was also designed between San Pedro Ave. and Hackett Road. The improvements along this stretch of roadway included curb, gutter, sidewalk, driveway, drainage, and grading improvements to match the existing surface inside private properties. The project also included utility pole relocations, tree removal & replacement, new drain facilities, street lighting, rectangular rapid flashing beacons, and traffic loop replacement.
Once the design was completed, the city decided to also include pavement rehabilitation improvements for the 1-mile stretch of roadway so that the paving improvements would be done prior to the re-striping of the project. Therefore, TL Engineering staff performed a pavement rehabilitation assessment of the project corridor and prepared pavement rehabilitation improvement plans. Our team also prepared technical specifications and an engineer's estimate of probable cost for all designed improvements. Construction of this project was completed in December 2022.
Ceres ITS Phases 1, 2, 3 & 4
Location: City of Ceres, CA
Leo Trujillo and Team provided professional traffic engineering services to the City of Ceres for the design of traffic signal modifications required for the installation of fiber optic cables and associated conduit/pull boxes connecting multiple signalized intersections along several corridors, including Service Road, Mitchell Road, Whitmore Road, Hatch Road, Central Avenue, and Morgan Road. Also included in the project scope of work was the design of any necessary upgrades to existing traffic signal controllers and associated auxiliary equipment.
The team prepared a complete set of Plans, Specifications, and Estimates (PS&E) for the City of Ceres. The team prepared the existing conditions base map based on the as-built information provided by the city, information collected during our site visit, and Google Earth aerials. The base map of the existing conditions was used for the design of the fiber optic improvements, and a set of design plans was then prepared.
The plan set included the layout of the fiber optic improvements in the project corridors listed above. The improvements are designed per the current Caltrans standards, with new equipment that is compatible with the city's equipment. Based on the research the team performed as part of the Phase I improvements, we identified adequate material and equipment that was fully compatible with the city's current system, including fiber optic cable (type and size), traffic signal controller, fiber optic interface type, communications cable, and several other types of traffic signal auxiliary equipment to ensure that the system would function properly and to its full potential. Coordination with the equipment manufacturer was maintained to ensure that the equipment previously proposed was still current and available, and if new/improved equipment was available, the team coordinated the possibility of upgrading such equipment with the city. Bidding and construction support services were also provided once the project was approved and awarded.
The Ceres ITS Phase I project was awarded to the team in 2012. After the successful completion of Phase I, Phase II was awarded to the team in 2015, and construction was finalized in 2019. Phases III & IV were awarded to the team in 2018, and the design was finalized in 2021. All project phases have been federally funded, so adherence to all Caltrans Standards and Specifications has been maintained throughout.
CSUMB Roundabout Design
Location: Marina, CA
The campus of the California State University Monterey Bay (CSUMB), in Monterey County, requested intersection improvements for this project, which consisted of the design of a roundabout at the Inter-Garrison Road/8th Avenue intersection. The project also includes improvements for pedestrian and bicycle access, including bike lanes, sidewalks, and pedestrian access ramps. Not only did this intersection modification provide improved traffic circulation, but it also serves as a gateway focal point for vehicular, bicycle, and pedestrian traffic as they enter the CSUMB campus.
Acting as a sub-consultant to Mesiti Miller Engineering, the team prepared a complete set of Plans, Specifications, and Estimates (PS&E) for California State University of Monterey Bay (CSUMB). The design included the preparation of PS&E for roadway improvements, including roundabout layout, alignment plan and profile, cross-sections, grading, signing & striping, curb & gutter, sidewalk, ADA curb ramps, pedestrian and bicycle facilities, and temporary bypass road improvements. To better accommodate truck traffic and to provide better deceleration on the 8th Avenue approach (for pedestrian & bike safety), the longitudinal grade on 8th Avenue was reduced from approximately 9% to a flatter 6.8%. This grade modification resulted in a complete re-profiling and reconstruction of the roadway along 8th Avenue, as well as on Inter-Garrison Road. As part of the construction traffic control, Leo and team prepared several design alternatives for a temporary bypass road, which also included an alignment plan and profile, cross-section, details, and striping improvements. Construction support services were also provided for the project. FHWA guidelines were used for the overall roundabout layout. Caltrans standards were used for all roadway-specific details.
