Union Pacific Railroad is investing $10.6 million in the rail line that runs between Santa Barbara and Camarillo.
The project is in progress and is scheduled to be completed by the end of February.
The 60-mile project includes replacing nearly 63,000 railroad ties and installing more than 38,000 tons of rock ballast to help provide a more stable roadbed.
In addition, crews will be renewing the surfaces at 72 road crossings.
Union Pacific plans to invest $3.6 billion in its rail network during 2012, supporting America’s current and future freight transportation needs and enhancing the safety and efficiency of the railroad’s 32,000-mile network.