Welcome to Milwaukee County, Engine No. 2025

Posted Date

September 9, 2025

Category

In The News, Sponsor Updates

It’s been over three decades since the Milwaukee County Zoo welcomed a new train engine on-site, but that all changed on August 8, when Engine No. 2025 — a 15” Tier 4 diesel hydraulic locomotive — arrived at the Zoo. This engine is designed to reduce criteria pollutant emissions by 70 percent and meets the Environmental Protection Agency’s cleanest diesel emission standards.

Engine No. 2025 was built by Swanee River Railroad Company in Lufkin, Texas and measures 20 feet long and 45” wide. The builder accompanied the engine on the journey from Texas and worked with Zoo staff to ensure it ran smoothly and had no issues on the train tracks.

This marks the first locomotive for the Zoo built outside of Wisconsin and is modeled after an F40-PHL style with capacity for two people to ride inside — crucial for engineer training and operation. The cab features dash-mounted air conditioning, a camera system, digital engine readouts, and controls for the air bell, horn, and sanders.

Engine No. 2025 will join the Zoo’s North Shore Bank Safari Train rotation this fall.

 

Train Facts:

  • Engine No. 2025 is the first new train engine built for the Zoo in 33 years.
  • Engine No. 2025 will be the Zoo’s third engine, joining No. 1992 and No. 1958.
  • The North Shore Bank Safari Train has carried over 20 million riders.
  • The Train has been an integral part of the Zoo experience since its inception.