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Photo ID: 109006
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
CP W047 (North La Salle)
La Salle, CO
305
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
Roster shot of SD70ACe-T4, UP 3087. I try to get a few shots of these units whenever I see them as they are relatively rare. Out of UP's roster of over 8,000 locomotives, they only have 87 of these EMD Tier 4 units.
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Photo ID: 109005
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Evans (MP 48.3)
Evans, CO
395
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
A southbound UP manifest crosses the South Platte river just south of the town of Evans and just north of the town of La Salle. US-85 parallels the tracks, crossing the river over its own bridge. The South Platte is one of the largest rivers in Colorado, which isn't saying much when compared to rivers like the Mississippi!
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Photo ID: 109004
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Greeley (8,349ft)
Greeley, CO
278
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
A string of empty auto racks rolls by on the main track at Greeley, passing by a now-defunct fruit business that has a now-defunct track in front of it that was once used for loading and/or unloading box cars. If you look closely, you'll notice the left rail is flat out broken. This track no longer connects to the mainline at either end, never to be used again.
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Photo ID: 109003
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Greeley (8,349ft)
Greeley, CO
288
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
An interesting northbound highballs a green signal at the south end of Greeley. The train is interesting for a few reason. First, sole SD70ACe on the point is in fact the only unit on the entire train. Second, other than the first seven cars, the remainder of the train is all empty auto racks.
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Photo ID: 109002
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
CP W054 (North Greeley)
Greeley, CO
338
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
At the north switch of Greeley, a southbound manifest takes the siding to meet a northbound local, holding the main. The conductor for the local is on the ground in order to give the manifest a "roll by", checking for any possible problems with the cars. The manifest will be meeting two northbounds here at Greeley.
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Photo ID: 109001
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Eaton (MP 58.8)
Eaton, CO
348
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
UP's Greeley Sub has a large number of industries that are served in most of the towns the line passes through. The town of Eaton is no exception, as you can see the various industries lined up along the mainline as a southbound manifest rolls on clear (green) signals through the middle of town.
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Photo ID: 109000
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
North of Nunn
Weld County, CO
383
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
UP 9013 leads a three unit consist on a 5,700-foot manifest south on the Greeley Sub in northern Colorado. The train is approaching the US-85 underpass just north of Nunn.
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Photo ID: 108999
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Carr (7,716ft)
Carr, CO
350
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
Starting in 1997, the EPA (Environmental Protection Agency) passed regulations on exhaust emissions for diesel locomotives. Five tiers (Tier 0 through Tier 2) were identified, with each higher tier having a requirement for cleaner emissions. Tier 0 applied to locomotives built between 1973 and 1992. Tier 1 applied to locomotives built between 1993 and 2004. Tier 2, which was the first real major decrease in emissions, went in to effect for locomotives built in and after 2005.

In 2008, the EPA added Tier 3 and Tier 4 requirements. Tier 3 applied to units built between 2012 and 2014, with Tier 4 starting in 2015. The Tier 4 standard required an 89% reduction in nitrogen oxides and a 93% reduction in hydrocarbons compared to Tier 0 standards. Compared to Tier 3 standards, nitrogen oxides required a 74% reduction and hydrocarbon required a 77% reduction

It took both GE and EMD years to develop locomotives capable of meeting the regulations. The designed were complicated and the units were expensive. In the case of EMD, they could no longer use a two-stroke engine, and instead had to move to a four-stroke (12-cylinder) engine, similar to GE.

Now, in 2023, UP still only has 87 SD70ACe-T4s (the Tier 4 compliant unit from EMD) on the roster. Most railroads have instead chosen to rebuild older units as rebuilds have lower emissions requirements and are far cheaper. One of the 87 SD70ACe-T4s is seen here, third unit at Carr on this southbound manifest.
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Photo ID: 108998
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
CP W086 (North Carr)
Carr, CO
370
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Union Pacific
A southbound manifest knocked down the signal at the north end of Carr and enters in to the siding to meet a northbound empty grain train. The crew on the manifest will ask the crew on the grain empty to let them know when their last car is clear of the grade crossing. The crew on the manifest is calculating their train length as they believe there is a discrepancy from their train manifest. Their suspicion was correct, as the manifest showed 4,600 feet and the actually length was 5,700 feet. Turns out the discrepancy was due to a technology error with their (electric) manifest. A quick call with UP support got everything straightened out.
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Photo ID: 108997
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Carr (7,716ft)
Carr, CO
307
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Norfolk Southern, Union Pacific
UP's Greeley Sub Dispatcher has set up a meet between NS 4004 and a southbound manifest here at Carr. NS 4004 got here first and will be holding the main the for the meet.
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Photo ID: 108996
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
North of Nunn
Weld County, CO
348
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Norfolk Southern, Union Pacific
Just north of the small town of Nunn, NS 4004 and UP 7331 have 112 empty covered hoppers on the roll northbound. Not too far ahead and the dispatcher would give the train a high wind warning, with wind speeds up to 70 MPH reported. The empty trains "blow over" speed is 78 MPH, meaning the train will be able to continue to Cheyenne.
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Photo ID: 108995
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Eaton (MP 58.8)
Eaton, CO
333
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Norfolk Southern, Union Pacific
NS 4004 leads 112 empty covered hoppers, headed for South St Paul, MN. For this shot, I am standing at the now-closed Hwy 72 grade crossing. It appears that UP has been making a considerable effort to close as many crossing along the Greeley Sub as possible. I noted at least five grade crossing that had been closed in the past few years.
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Photo ID: 108994
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Greeley (8,349ft)
Greeley, CO
348
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Norfolk Southern, Union Pacific
Quick roster shot of the uniquely painted NS 4004, one of the first units to be converted from a unit with DC traction motors to AC traction motors. When Norfolk Southern started the program in 2015, the first six units to be converted (NS 4000 to NS 4005) received special paint schemes to commemorate the conversion. I must admit, I never expected to find one in Greeley, CO!
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Photo ID: 108993
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
Greeley (8,349ft)
Greeley
327
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Norfolk Southern, Union Pacific
Nearing the north end of Greeley, this empty unit grain train is starting to accelerate as the entire train is now off of the Great Western and on the mainline. It is exceptionally windy today. Those with a sharp eye will note that the exhaust from NS 4004 is actually blowing toward the front of the train due to the high winds.
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Photo ID: 108992
Date Shot
Photo By
Sunday, February 19, 2023 Kevin Morgan
Location
Times Viewed
CP W952 (Greeley Jct)
Greeley, CO
344
(Add a Comment)
Subdivision
Railroad
Greeley (UP) Norfolk Southern, Union Pacific
NS 4004 leads an empty unit grain train off the Great Western Railroad, across the US-85 business loop in Greeley, toward UP's main track on the Greeley Subdivision. The width of the four lane highway, including shoulders and center median, is approximately the length of one unit!
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