Supporting the design-build contractor, California Rail Builders, JMA led the design of two adjacent shooflies of BNSF mainline for Construction Package 4 (CP4) in Wasco. JMA developed the at-grade alternative technical concept during tender phase that avoided the expensive and impactful BNSF viaduct structure through Wasco shown in the base bid documents. Working closely with BNSF, a single long shoofly was modified to two shorter shooflies, eliminating impacts to the BNSF Wasco yard and adjacent Amtrak station. In addition to designing over 32,000 feet of new mainline and shoofly tracks, JMA led SJRRC and SJJPA engagement for conceptual layout of the pedestrian tunnel, street parking and overall rider access to the Wasco Amtrak station, coordinated all utility relocation submittals with the BNSF (45 applications), designed a 15,000-foot relocation of a Lumen fiber line through Wasco, and led the CPUC applications for 10 new and modified crossings. JMA additionally performed independent technical review of the HST and associated project drainage for a 3-mile segment through Wasco. JMA was successful in leading an expedited design and construction schedule with Lumen, BNSF, and the Authority, with construction completed in under 9 months from the start of design. The Lumen fiber optic relocation was completed in October of 2019 and the Poso Ave shoofly entered operation in 2022, with the construction of the Poso Ave Underpass completed in 2023.
