How many different railroads were around during the civil war?

During the Civil War, there were approximately 30,000 miles of railroad track in the United States, operated by around 30 different railroad companies. Both the Union and Confederate armies recognized the strategic importance of railroads for transporting troops and supplies, leading to significant military engagements around key railroad junctions. The Union had a more extensive and better-maintained rail network compared to the Confederacy, which played a crucial role in their logistical advantages.