by RandallW
west point wrote:The CAHSR is going under the bridge -- that bridge is being built to take a road that used to have a surface crossing with the BNSF over both the CAHSR and the BNSF.Jeff Smith wrote: ↑Thu Mar 14, 2024 4:19 am https://www.instagram.com/p/C4eSxjAPf1s ... ZoMHZ1NmplIt is hard to tell but the span over BNSF certainly is wide. Seems at least possible 4 tracks wide under the span. Or maybe giving some room if a possible BNSF derailment? It is no wonder the costs for CA HSR is so expensive.
A though about the HSR bridges. Are the bridges all using the same type and length of spans. Otherwise the problem of service interruption due to a bridge failure for whatever reason (derailment, truck hitting span, earthquake, etc.) will mean a long wait for a unique replacement. Standard spans would mean storage of extras for the eventual need.