The "100 yards west of the underpass" (Benham) description was made earlier in this thread by Super Chief. I wouldn't mind seeing the switch between the station and Main St (making Track 1 the closest track to the station at the platform). Piecing the breadcrumbs together I get the following:tttodisp wrote:From what I can tell, the connection to the Branch will be about where the diamond is now (basically no change).
This is similar to the diagram you posted but the RH crossover between Track 2 and Track 3 is moved east. In this diagram I am reusing the existing crossovers on the North and South Freight tracks as the eastern crossovers in the new interlocking. The new cabinet location shown in the photographs above would allow for Track 1 to be placed between the new cabinet and the current North Freight track.
If this is the plan, the Coach Track would need to be closed for the construction of the west part of the new interlocking. North and South Freight trains could continue to run through the new switches as they are installed. On cutover, Tracks 1 and 2 would be moved south (near 6th St) and connected to the new tracks.
A 15" above top of rail platform could be built next to the new Track 1 with a crossing of the lead to the branch track (although the switch could be placed 100 yards east of the underpass and merge with Track 1 east of the platform ... not requiring passengers to cross rails to get to the train).