Here is the freight run down on MNR. Just keep one thing in mind, with very few exceptions, most freights on MNR run after hours to avoid conflicts with passenger service. This is a line-by-line breakdown........
Hudson Line :
CSX B750 (night)/B749 (day) - Both based out of Croton West Yard, these are the the evening/day locals, the evening switches out industries on the Hudson Line in the Peekskill area, Burnwell Gas; used to work Domino Sugar in Yonkers, but Domino Sugar has not received any rail service in at least 4 or more years. Harlem Line, Tulnoy Lumber in Tremont (Bronx) and ACE Endico Foods in Mount Vernon West. New Haven Line, Marval Industries in Mamaroneck and Rings End Lumber in Darien. The day counterpart largely stays north of Croton and the Poughkeepsie area, but occasionally will make runs down to Oak Point and even on occasion switch the Harlem River Waste Transfer Facility in the South Bronx, and the B749/750 crews do occasionally also get used to cover any outlawed (surpassing the FRA mandated 12 hours on duty rules) CSX road freights (road freights will be discussed shortly). B749/750 run 5 to 6 days a week.
CSX Q430(northbound)/431(southbound) - Manifest road freight, pretty much daily, between Oak Point and Selkirk and back.
CSX Q703 - While on the Hudson Line, it runs north to Albany, but this train is a SOUTHBOUND train, Oak Point Yard & Harlem River Waste Transfer Facility to Collier VA (via Acca Yard, Richmond), runs about 5 days a week, occasionally will show up 6 days, unit trash train.
CSX Q701 - Selkirk Yard Albany to Oak Point Yard, South Bronx. Empty trash containers, though it does occasionally carry mixed manifest. Empty trash containers come off of CSX Q702 in Selkirk, Q702 runs between Collier VA and Selkirk.
Additional sections, or second sections, of the above mentioned road freight do run as needed, using either S or X prefix symbols (i.e. S430/431, X701, etc)
Harlem Line :
Virtually no real freight except when B750 works ACE Endico in Mount Vernon West and Tulnoy Lumber in Tremont, Bronx. North of Mount Vernon West, there is NO freight service, and Housatonic, who used to run on the Harlem many years back to service King Lumber in Golden's Bridge, pulled out.
New Haven Line :
CSX B750, as mentioned above, does work on the west end of the NH at Mamaroneck and Darien (Marval and Ring's End, respectively). No road freights. Cedar Hill Yard (New Haven) yard based locals B747 (day) and B746 (night) work industries on the very upper, or east end, of the New Haven Line in the Milford and Stratford area, more or less 5 to 6 days a week.
Providence and Worcester runs local CT-2 to work as needed on the Waterbury Branch (Tilcon) and at Ring's End in Bethel. Not sure how much, if any, work CT-2 does in the Danbury area. Freight is relatively devoid in Danbury. Road freight CHFP/FPCH runs more or less 3 to 4 times a week, unit stone train, between Cedar Hill Yard, New Haven CT, and Fresh Pond Yard (CSX/NYAR) in Glendale, Queens NY. This train regularly rates P&W's newly leased SD60 engines.
Housatonic is a once in a blue moon appearance in the Danbury area, if ever that often. Most industries they used to do business with in Danbury either stopped with rail service or went out of business.
That's just about everything. West Of Hudson (operated by NJT using MNR equipment) yields Norfolk Southern locals out of Campbell Hall and Suffern, and occasionally one from Croxton Yard in Jersey City. NYSW runs on the Port Jervis from roughly the Campbell Hall area thru Port Jervis (NYSW continues on the old Erie Southern Tier to Binghamton), with NYSW road freight SU-100/99, Binghamton to Park Yard, Ridgefield Park NJ and back respectively.
Hope you find this helpful. Best be a nocturnal railfan if you wanna see freight, sadly!!
Railroading is not a career, it's a lifestyle! Railroading........what other life would I wanna live?