In normal years I reserve a few hours on the Sunday after Thanksgiving to watch some of the Amtrak extra trains being run on the Northeast Corridor. However in 2020 with the Covid pandemic drastically curtailing holiday travel, there was little of any extra service to be had and even if there was it would be indistinguishable from a normal year's regular service. Still, I didn't want to break my tradition, so instead of heading to a popular spot where trains were to focus, I chose a location with some infrastructure and signaling that could fill in the gaps. Specifically this was the Odenton, MD MARC station and adjacent GROVE interlocking. Also in this set ( mirror ) are some Philly area PATCO and SEPTA photos/videos.
Situated as the first stop south of the BWI Airport Rail Station, Odenton has grown into a massive park and ride facility with a lot of high density transit orientated development. It's two large high level platform can accommodate full length MARC trains unlike Bowie State and Seabrook to the south.
Located behind the platform on the northbound side is the old ODENTON interlocking tower that controlled some crossovers and a connection to an industrial track. This would be closed in the early 1980's when ODENTON interlocking was replaced by GROVE interlocking about a mile to the north.
The first train to appear was an southbound Amtrak Acela Express trainset with power cars #2032 and #2034. Looking north we can see the Maryland Route 175 bridge.
This was followed by ACS-86 #653 with some kind of Regional.
The station building was constructed in the 1950's and has what I assume to be reproduction PRR keystones.
Using a gap in activity to head down to GROVE interlocking, GROVE is a 3 track full crossover that was the location of the NEC's first high speed turnout to allow northbound Amtrak trains on track #2 out of DC to make the stop at BWI on track #1 without having a large time penalty. Before the advent of the Cab Speed 80 cab signal, diverging routes over the HST at GROVE were protected by directional arrows on track #2. Today the center track #2 had a barricade up north of the interlocking so all southbound traffic was using track #3.
MARC was running a two hourly service with a mixed trainset with MP36PH-3C's #18 and #13 having the honors and Kawasaki Kab Kar #7853 on the end.