Discussion

The proposed construction of two new grade-separated pedestrian underpass crossings is part of a larger project involving the relocation of the existing San Bruno Caltrain station to milepost 11.05, replacement of three existing at-grade vehicular crossings with grade-separated underpass crossings, and replacement of an at-grade pedestrian crossing within the current San Bruno Caltrain station with a public pedestrian underpass crossing. The project location is on the Caltrain mainline in the City of San Bruno.

Two proposed pedestrian underpass crossings are within the scope of this decision. The first proposed pedestrian underpass crossing that is the subject of this application is to be identified as CPUC Crossing No. 105E-10.95-BD, and will provide access between the residential zone west of the tracks to the industrial zone east of the tracks by linking Euclid Avenue with Walnut Street. Providing safe pedestrian access at this location will reduce trespassers in the vicinity.

The second proposed pedestrian underpass crossing of this application is identified as CPUC Crossing No. 105E-11.05-BD, and will be the future location of the new San Bruno Caltrain station. This pedestrian underpass will provide access between the northbound and southbound platforms.

Although not part of the scope of this decision, the three vehicular crossings to be grade-separated are the San Bruno Avenue, San Mateo Avenue, and Angus Avenue crossings, identified as CPUC Crossing Nos. 105E-11.00, 105E-11.10, and 105E-11.40, respectively. These at-grade vehicular crossings have a very high Average Daily Traffic count due to the close proximity to the San Francisco International Airport, an industrial zone, and Highways 280, 380, and 101. This project is currently ranked eighth on the Section 190 Grade Separation program.¹ The PCJPB has submitted GO 88-B applications for modification of these three crossings to the CPUC. G.10-01-015 has been submitted for the San Bruno Avenue crossing. G.10-01-016 has been submitted for the San Mateo Avenue crossing. G.10-01-017 has been submitted for the Angus Avenue crossing.

The San Bruno Caltrain Station North Pedestrian crossing identified as CPUC No. 105E-11.60-D will be replaced with a public pedestrian underpass crossing. The PCJPB has submitted GO 88-B application G.10-01-018 to modify this crossing to the CPUC.

Upon completion of the new San Bruno Caltrain station, the south at-grade San Bruno Caltrain station pedestrian crossings will be closed and the north at-grade pedestrian crossing will be modified into a public pedestrian underpass.

The PCJPB operates 90 passenger trains per day on this segment of track in addition to approximately four daily Union Pacific Railroad freight trains.

¹ I.07-07-006 Appendix B.