"A bridge type evaluation was performed to evaluate and identify the optimum type of structure
for the various segments of the elevated run-through tracks structure. The bridge type
recommended by the project engineering team for crossing over U.S. 101 is a steel deck-plate
girder (DPG). The recommended bridge type for the trestle segment (from south of U.S. 101 to
the BNSF mainline touchdown point) is a combination of precast/prestressed concrete box girder
(PC/PS), steel deck-plate girder, steel through-plate girder (TPG), and mechanically stabilized
earth (MSE) structures, depending on the alignment of the alternative."
Los Angeles Union Station Run-Through Tracks Project: Final Environmental Impact Statement (EIS) Executive Summary
01
Jun
2005
https://www.fra.dot.gov/eLib/Details/L01619