| Owner: | Union Pacific Railroad Company |
| Type: | Gondola |
| AAR Class: | MW: Maintenance of Way Class |
| AAR Type: | M100 |
| Detail Info: | Misc Cars, MW-M of W Equip |
| Plate: | B |
| UP Class: | G-100-18 |
| Max Gross Weight: | 263000 |
| Load Limit: | 204000 |
| Dry Capacity: | 4155 |
| Ext L/W/H: | 53' 1" / 10' 8" / 12' 5" |
| Int L/W/H: | 46' 10" / 9' 10" / 11' 0" |
| User Notes: | 4155 CU FT; Ribbed; "Bathtub" Gondola |
