BNSF operating teams continue to execute our service recovery program to generate improved performance. Ensuring that the necessary resources are available on the network to meet demand remains a key focus of this aggressive program. After adding 100 locomotives to our active fleet in April, we are evaluating and adjusting the number of additional units that may join the fleet this month in alignment with freight volumes. In addition, we currently have 310 new train crew personnel that will complete their training in the next 90 days. We appreciate your patience as these resource availability needs are addressed.
During this first week of May, our operating teams have responded to some service challenges in both our North and South Regions. We experienced a derailment early Sunday morning on our main Northern Transcon line in North Dakota, approximately 10 miles west of Minot. Both main tracks were out of service for 24 hours while crews addressed the scene. Traffic has been delayed as rail operations through the area were limited to a single main track for much of the week, with the second main track returning to service under a speed restriction last night.
Severe weather in eastern Oklahoma and Missouri late Wednesday into Thursday also caused some disruptions. Heavy rain resulted in multiple washouts on our main line between Tulsa and Madill, Okla. Engineering crews and equipment were quickly deployed to affected locations to make track repairs and conduct inspections. Trains are still being re-routed or detoured around a few locations on this line, including where a bridge over the Canadian River approximately 80 miles south of Tulsa remains out of service. Restoration work is needed to the bridge, which will likely extend the current outage into next week.
We are also monitoring track conditions along our main line running between Kansas City and Springfield, Mo. After experiencing several washouts in multiple locations, trains are currently moving at reduced speed on this line. As additional flooding concerns in the area ease along with dry weather in the region during the next several days, we expect an expedited return to normal train operations.
As always, we thank you for your business and appreciate the opportunity to serve as your transportation service provider. We welcome your feedback and questions.