TRACK Our rail network includes 32,693 route miles. We own 26,110 miles and operate on the remainder pursuant to trackage rights or leases. The following table describes track miles: As of December 31, Route Other main line Passing lines and turnouts Switching and classification yard lines Total miles 2023 32,693 7,117 3,466 8,852 52,128 2022 32,534 7,113 3,454 8,853 51,954 HEADQUARTERS BUILDING We own our headquarters building in Omaha, Nebraska. The facility has 1.2 million square feet of space that can accommodate approximately 4,000 employees. The Harriman Dispatching Center (HDC), located in Omaha, Nebraska, is our primary dispatching facility. It is linked to regional dispatching and locomotive management facilities at various locations along our network. HDC employees coordinate moves of locomotives and trains, manage traffic and train crews on our network, and coordinate interchanges with other railroads. Generally, around 500 employees work on-site in the facility. In the event of a disruption of operations at HDC due to a cyber-attack, flooding or severe weather, pandemic outbreak, or other event, we maintain the capability to conduct critical operations at back-up facilities in different locations. RAIL FACILITIES In addition to our track structure, we operate numerous facilities, including terminals for intermodal and other freight rail yards for building trains (classification yards), switching, storage-in-transit (the temporary storage of customer goods in rail cars prior to shipment), and other activities offices to administer and manage our operations dispatching centers to direct traffic on our rail network crew on duty locations for train crews along our network and shops and other facilities for fueling, maintenance, and repair of locomotives and repair and maintenance of rail cars and other equipment. The following table includes the major yards and terminals on our system: Major Classification Yards North Platte, Nebraska Englewood (Houston), Texas North Little Rock, Arkansas Livonia, Louisiana Fort Worth, Texas Roseville, California Houston, Texas West Colton, California Major Intermodal Terminals Joliet (Global 4), Illinois Global II (Chicago), Illinois East Los Angeles, California ICTF (Long Beach), California Mesquite, Texas Lathrop, California City of Industry, California Salt Lake City, Utah RAIL EQUIPMENT Our equipment includes owned and leased locomotives and rail cars heavy maintenance equipment and machinery other equipment and tools in our shops, offices, and facilities and vehicles for maintenance, transportation of crews, and other activities. As of December 31, 2023, we owned or leased the following units of equipment: Locomotives Multiple purpose Switching Other Total locomotives Owned 5,971 132 14 6,117 Leased 1,037 1,037 Total 7,008 132 14 7,154 Average Age (yrs.) 24.3 43.5 51.2 N/A Freight cars Covered hoppers Open hoppers Gondolas Boxcars Refrigerated cars Flat cars Other Total freight cars Owned 13,761 4,846 6,396 3,389 2,444 2,216 33,052 Leased 9,474 775 4,492 7,572 1,199 2,254 371 26,137 Total 23,235 5,621 10,888 10,961 3,643 4,470 371 59,189 Average Age (yrs.) 21.3 36.4 23.1 32.7 21.8 32.6 35.2 N/A Highway revenue equipment Containers Chassis Total highway revenue equipment Owned 47,439 30,635 78,074 Leased 545 17,705 18,250 Total 47,984 48,340 96,324 Average Age (yrs.) 12.2 13.2 N/A 19 Table of Contents We continuously assess our need for equipment to run an efficient and reliable network. Many factors cause us to adjust the size of our active fleets, including changes in carload volume, weather events, seasonality, customer preferences, and operational efficiency initiatives. As some of these factors are difficult to assess or can change rapidly, we maintain a buffer to remain agile. Without the surge fleet, our ability to react quickly is hindered as equipment suppliers are limited and lead times to acquire equipment are long and may be in excess of a year. We believe our locomotive and freight car fleets are