US-based Union Pacific Railroad has announced plans to invest around $180m this year in its Californian rail infrastructure.
The investment is part of the company’s an ongoing investment strategy.
From 2012 to 2016, Union Pacific in to strengthen California's transportation infrastructure.
Projects funded by the company will benefit California's overall transportation infrastructure without relying on taxpayer funds.
Union Pacific public affairs western region vice-president Wes Lujan said: "Union Pacific's targeted investments fund projects that strengthen our railroad tracks, increase safety and minimise delays as trains travel through communities across California.
"Maintaining a healthy railroad is the foundation of our ability to serve customers and communities across the state."
Union Pacific will make a $149.6m investment to maintain railroad track and $20.7m to maintain bridges in the state.
Key projects that are planned for this year are an investment of $12.5m in the rail line between Visalia and Delano to replace 28 miles of rail, $7.9m in the rail line north of Winterhaven, California, to replace 18 miles of rail.
Another $9.1m investment will be made in the West Colton Bowl Track project.
This year, the company plans to spend $3.1bn across its network. It has invested $51bn since 2000, contributing to a 40% decrease in derailments during this timeframe.
Union Pacific Railroad connects 23 states in the western two-thirds of the country by rail and provides a critical link in the global supply chain.