by NYCRRson
https://en.wikipedia.org/wiki/Maiden_Lane_Bridge#/map/0
The NYCRR Maiden Lane Bridge started on the West side of the Hudson right where Maiden Lane currently exists in Downtown Albany. About two blocks north of State Street, Maiden Lane runs just about due East from the middle of the NY State Capital Building.
The Bridge was owned 3/4 by NYCRR and 1/4 by the B&A RR before the NYCRR purchased (leased? ) the B&A.
The bridge arrived on the Renesselear side of the river right around the Current Renesselear Waterfront Esplanade.
Near the East side of the bridge was a large roundhouse to service the steam loco's for the passenger trains (freight trains had been routed over to Selkirk in the 1920's).
Through trains that did not accept or discharge passengers in Albany (20th Century Limited, etc) ran through Renesselear and stopped for a crew change and then used the Livingston Avenue Bridge (LAB) to cross the river.
Albany Union Station had curved track platforms running mostly North/South, they took a sharp curve to the East at the South end of the station platforms and entered the East/West Maiden Lane Bridge.
Aside from the Station Building itself (was a bank for many years) everything else is gone and or covered in Interstate highways.
Approximate location of Maiden Lane Bridge in Orange (plus or minus 1/2 mile);

The NYCRR tracks from the West split away to the South and headed to Albany Union Station just a block or so west of the big collapsing warehouse. My understanding is that that warehouse is a double walled concrete structure filled with sawdust between the inner wall and the exterior wall. Commonly done 100 years ago to create "cold storage". I think I recall a news article about a hard to extinguish fire in the sawdust insulation back many decades ago, took a day or more to to extinguish the fire.
Modern and Historic track routes, Green is the current Amtrak owned mainline, crossing the Hudson via the LAB. Red is the "problematic" warehouse, Blue is (I believe) the historic NYCRR route South along the river to Albany Union Station;

More Details, Green is current Amtrak route, coming from Schenectady crossing the Hudson via LAB, heading through Renesselear and going south. Red is the warehouse, Dark Blue is the historic route for NYCRR passenger trains stopping at Albany and crossing the river at the Maiden Lane Bridge.
Brown is old D&H route which also serviced Albany Union Station. Yellow is current Amtrak Renesselear Station and shop area. Light blue is the historic NYCRR Passenger Roundhouse serving Albany Union Station, Pink is the route up to the Troy NY area.

The NYCRR Maiden Lane Bridge started on the West side of the Hudson right where Maiden Lane currently exists in Downtown Albany. About two blocks north of State Street, Maiden Lane runs just about due East from the middle of the NY State Capital Building.
The Bridge was owned 3/4 by NYCRR and 1/4 by the B&A RR before the NYCRR purchased (leased? ) the B&A.
The bridge arrived on the Renesselear side of the river right around the Current Renesselear Waterfront Esplanade.
Near the East side of the bridge was a large roundhouse to service the steam loco's for the passenger trains (freight trains had been routed over to Selkirk in the 1920's).
Through trains that did not accept or discharge passengers in Albany (20th Century Limited, etc) ran through Renesselear and stopped for a crew change and then used the Livingston Avenue Bridge (LAB) to cross the river.
Albany Union Station had curved track platforms running mostly North/South, they took a sharp curve to the East at the South end of the station platforms and entered the East/West Maiden Lane Bridge.
Aside from the Station Building itself (was a bank for many years) everything else is gone and or covered in Interstate highways.
Approximate location of Maiden Lane Bridge in Orange (plus or minus 1/2 mile);

The NYCRR tracks from the West split away to the South and headed to Albany Union Station just a block or so west of the big collapsing warehouse. My understanding is that that warehouse is a double walled concrete structure filled with sawdust between the inner wall and the exterior wall. Commonly done 100 years ago to create "cold storage". I think I recall a news article about a hard to extinguish fire in the sawdust insulation back many decades ago, took a day or more to to extinguish the fire.
Modern and Historic track routes, Green is the current Amtrak owned mainline, crossing the Hudson via the LAB. Red is the "problematic" warehouse, Blue is (I believe) the historic NYCRR route South along the river to Albany Union Station;

More Details, Green is current Amtrak route, coming from Schenectady crossing the Hudson via LAB, heading through Renesselear and going south. Red is the warehouse, Dark Blue is the historic route for NYCRR passenger trains stopping at Albany and crossing the river at the Maiden Lane Bridge.
Brown is old D&H route which also serviced Albany Union Station. Yellow is current Amtrak Renesselear Station and shop area. Light blue is the historic NYCRR Passenger Roundhouse serving Albany Union Station, Pink is the route up to the Troy NY area.
