Westbound Marine Stack Trains

Hopefully by using the following chart you will be able to determine where the train originated and where it is headed. All marine stack train symbols start with the letter S. Marine stack trains are not on a very tight schedule, so they can run at almost anytime on any day of the week. Watch for the power configuration and the major steam ship line containers on the train. In the lines below, I have put the most frequent trains at the top. The number 18/20 means that it was operated 18 times during a 20 day period, so it is almost daily. The number 1/20 means that it only operated once during the same 20 day period. Next will be the power configuation. Trains with distributed power (DPU) have a plus sign such as 4+2 mean four units on the headend and two on the rear, while 3 units means all the power was on the front and no DPU. Following the power will be another frequency number indicating how often that power configuration was used: 1x means once, 2x means twice, etc.

The most frequent westbound S train was the SALTOIG observed 12 of the 14 times it operated during this period. All of the trains had CMA CGM, China Shipping, COSCO, APL containers. Twice it had also had Maersk and Hyundai containers. Four trains included Matson containers. If you see Matson marine containers (not the 53ft Matson container) mixed with domestic contains, then it is a Q train, not an S train. S trains are exclusively marine containers. The only exception is autoracks on the rear and this occured nine times on the SALTOIG. This was the only westbound marine stack train I saw with autoracks.

Tied for second place in frequency were two trains going to Thenard just north of the San Pedro ports and one to LBE. The SALTSCO was observed 7 of the 10 times it operated during this period. Three times it had CMA CGM, China Shipping, COSCO, APL containers followed by a group of MSC, Maersk, Hyundai containers. Three times it had just MSC, Maersk, Hyundai, Hamburg Sud, Safmarine, and P&O Nedlloyd containers. And once, it had just CMA CGM, China Shipping, COSCO, APL containers. The power was 3 units 7 times and 2 units 3 times.

The SLPKSCO was also observed 7 of the 10 times it operated during this period. Three times it had Yang Ming, CMA CGM, China Shipping, COSCO containers. One time it had a block of MSC, Maersk, Hyundai, Hamburg Sud followed by a block of CMA CGM, China Shipping, COSCO containers. Another time it was just the reverse. One time it CMA CGM, China Shipping, COSCO containers. And one time MSC, Maersk, Hyundai, Hamburg Sud containers. The power was 3+2 six times, 4+2 once, 3+2+1 once, 2+2 once, and once just 4 units.

The SLPCLBE was also observed 6 of the 10 times it operated during this period. All had CMA CGM, China Shipping, COSCO containers. Four trains had a lot more OOCL containers than the other ship lines. Two had Yang Ming containers in the mix. The power was 2+2 for all ten trains.

Major teminals for stack trains:
- ALT Alliance, TX
- CLO Clovis, NM
- LPC Logistics Park Chicago (Joliet)
- LPK Logistics Park Kansas (Gardener)
- MEM Memphis, TN
- NWO New Orleans, LA
- OMA Omaha, NE
- PEA Pearland, TX (Houston)
- SCO Thenard, CA
- STL Saint Louis, MO

CMA CGM, China Shipping, COSCO, OOCL, APL (Ocean Alliance)
- ALTLBE 2/20 2 units 2x
- ALTLHW 1/20 3 units (may include some Yang Ming)
- LPCLBJ 2/20 2+2 2x
- LPCLHG 3/20 2+2 3x
- LPKLBJ 1/20 4 units
- MEMLBE 2-20 2 units 2x
- MEMLHG 1/20 2 units
- OMASCO 4/20 3+2 1x 3+1 1x 2+1 1x 3 units 1x
- PEALBE 1/20 3 units
- STLLBJ 1/20 2 units

MSC, Maersk, Hyundai, Hamburg Sud, Safmarine, and P&O Nedlloyd (2M Alliance)
- ALTLBT 3/20 3 units 2x 2 units 1x
- LPCLBT 3/20 4+2 2x 3+2 1x
- LPCLHA 5/20 5+3+2 1x 4+2+2 1x 2+2+2 1x 3+2+1 1x 3+2 1x
- LPKLBT 1/20 4 units
- LPKLHA 1/20 3+2
- MEMLBT 2/20 2 units 2x
- MEMLHA 1/20 4 units
- NWOSCO 2/20 3 units 2x

blocks of CMA CGM, China Shipping, COSCO, OOCL, Yang Ming with blocks of MSC, Maersk, Hyundai, Hamburg Sud
- CLOSCO 4/20 3 units 3x 4 units 1x
- LPCLBA 4/20 2+2 3x 3 units 1x
- LPCOIG 2/20 3 units 2x
- LPCSCO 5/20 3+2 3x 4+2 1x 2+2 1x
- MEMSCO 1/20 3 units
- PEASCO 4/20 3 units 3x 4 units 1x
- STLSCO 1/20 2 units

BNSF Train Symbols
Bare Table Trains
Manifest Trains Westbound
Manifest Trains Eastbound
Q Trains Westbound
Q Trains Eastbound
Marine Stack Train Overview
Marine Stack Trains Eastbound
Unit Trains
Vehicle Trains
Z Trains Westbound
Z Trains Eastbound