Bailey Civil Projects
We employ creative thinking and collaborate closely with planners, architects, and engineers to address the intricate, cross-disciplinary challenges presented by every project.
PGCSD Water Storage Tank
Project to replace 3 existing bolted steel tanks. The old 425,000-gallon tank had been offline since suffering vacuum collapse in 2016 and the other two bolted tanks were leaking and beyond their serviceable lifetime. To maintain the potential for the addition of future storage at the District’s only and best tank site, the design replaced the three old tanks with a single 500,000-gallon welded steel tank and replaced and reconfigured all site piping. Design and construction challenges included a small site with difficult access through a single steep driveway, working around the two old tanks that needed to remain in service until the new tank and piping were online and reconnecting to the existing water distribution system with the old tanks in service. Bailey Civil Engineering completed the project civil engineering design, construction plans and specifications, project management, construction management and the majority of inspection with sub-consultants completing survey, environmental and geotechnical work, and coating inspection. The Project's civil engineering design was completed in 2017 and 2018 and the Project was bid in 2020 with construction complete in October 2021.
Pioneer Water Rehabilitation – Phase 2
Project to improve the water distribution system with ~7,400’ of 12” pipeline in Buckhorn Ridge Road, 4 pressure reducing stations (one on 12” mainline, 3 on existing lines), and a new booster pump station adjacent to the existing tank B pump station. Due to the extremely short design window (~3 months to complete predesign, design, and construction plans and specifications), Bailey Civil Engineering teamed with Coleman Engineering on this project, who completed the pump station design and plan and specification portion. Bailey Civil Engineering was the prime consultant on the project and completed the entirety of the pipeline and PRV station design, construction plan and specifications including pre-design work during the design phase to present downstream pressure zone options and confirm pipe size and material options. Design challenges included the accelerated timeline, managing additional pressure zone creation with the design of PRV stations on the existing system, and designing multiple new pipeline interconnects with the existing distribution system for maximum operational flexibility. All project work was completed between late January and early May 2020 with project construction completed in 2020. Bailey Civil Engineering completed project construction management for the first several months of the project until they selected a CM consultant. The Owner requested we complete the entirety of project construction management but other project commitments precluded this being possible.
Pioneer Water Rehabilitation – Phase 3
Project to replace two existing tanks and install a new pipeline to connect the new tanks to the previously constructed phase 2 pipeline. The project site contained a 250,000-gallon bolted steel tank (taken offline some years prior due to disrepair/age) and a 500,000-gallon welded steel tank (also in disrepair/suffering from age) that needed to remain in service until the new tanks were online. The replacement project included the construction of two new 1 million gallon welded steel tanks, site piping improvements, and 1,600 feet of 12” transmission main. Bailey Civil Engineering was asked by Keller Associates to team up on the project and completed resident engineering services for the project including all inspections except coating inspection (CSI Services) and geotechnical testing (Geocon Consultants Inc.). Bailey Civil Engineering completed the easement acquisition and design of a storm drain extension during the project and resolved several design problems in the field. The tanks went into service in August of 2023 and the project is substantially complete as of November 2023.
AWA Gravity Supply Line
Project to upgrade and replace a complicated and outdated existing pumped raw water conveyance system involving pipeline between 2 pump stations in series that lifted water approximately 1100 vertical feet to the AWA Buckhorn Treatment Plant from the Tiger Creek Afterbay. The new gravity-fed raw water transmission pipeline is approximately 6.6 miles of 20” & 24” HDPE, DI, Steel, and C905 Pipeline that delivers water from the Tiger Creek Regulator Reservoir to the Buckhorn Water Treatment Plant and had numerous design and construction challenges. The majority of the pipeline is remote and involves construction on narrow roads, through narrow (as little as 10’) easements, and cross country on slopes exceeding 70% grade in places. The pipeline was designed above ground in the steepest area and includes three aerial stream crossings, one State Highway crossing, one underground stream crossing, and one aerial flume crossing. The pipeline intake is via a siphon at the reservoir and includes a CMU siphon control building at the reservoir. The maximum pipeline pressures exceed 275 psi and vertical fall from the source reservoir to the treatment plant is only approximately 130 feet. Liam Bailey completed the project predesign, design, construction plan preparation, and management of geotechnical, structural, and survey sub-consultants while an Amador Water Agency employee in 2007 and 2009. Bailey Civil Engineering completed construction management of the project from construction notice to proceed in November 2013 to final project completion in 2016.
Kirkwood Chair 10 Garage
Project to replace staff quarters at approximately 9,400’ elevation at the top of Kirkwood Mountain Resort's Chair 10 in Alpine County. The project consisted of the removal of an existing staff and equipment shack and the construction of a new 2-story building with a lower-level garage and upper-level staff quarters, equipment storage, and explosives arming room. Bailey Civil Engineering completed the architectural and structural design and worked on the construction crew from start to finish of the project. Significant design issues were slope excavation and the maximum recorded wind speeds at the site exceeding 190 miles per hour. The building was dug into the slope to match existing grades and allow optimal garage ingress and egress. The northwest and southeast lower walls were designed as retaining walls with heights above 14 feet. Significant additional anchorage and hold-downs were designed to carry the extreme wind load. The project design was completed in 2012 and the project was constructed in 2013.
Kirkwood Chair 6 Garage
Project to replace existing garage adjacent to staff quarters at approximately 9,100’ elevation at the top of Kirkwood Mountain Resorts’ Chair 6 in Amador County. The project consisted of the demolition of an existing garage and the construction of a new single-story garage sized to fit the largest of the ski area’s snowcats. Bailey Civil Engineering completed the architectural and structural design. Significant design issues were the maximum recorded wind speeds at the site exceeding 190 miles per hour and working around existing staff quarters and a partial garage slab that was not to be demolished. The new garage was located in the same location as the previous garage but the footprint was expanded to the east and south and the new roof was approximately four feet higher. Significant additional anchorage and hold-downs were designed to carry the extreme wind load. The project design was completed in a short window in late spring 2022. Construction was completed in late fall 2023.
KMPUD Water System Analysis
Over time KMPUD’s water distribution system has been added to and modified without a master plan and engineering oversight. Currently, the well pumps pressurize the entire system to fill the tanks and the entire system operates under a single pressure zone with pressures exceeding 150 psi at the lowest elevations in the system. Many customer pressure-reducing valves are required and the system is unnecessarily stressed. KMPUD retained Bailey Civil Engineering to analyze the system, confirm the accuracy of existing system maps, amend as required, and provide analysis and recommendation of priority projects and project options to restore the system to multiple pressure zones with separate well pump transmission to tank fill lines.
