phase iii began in september 2017, once the realignment of southbound interstate 5 had been completed. once complete, it will result in an increase from 5 inspection lanes to 10. this project also includes an increase in the northbound inspection lanes by adding 8 new lanes on the east side of the border crossing. this project does not affect existing pedestrian lanes. architects miller hull partnership are leading the third phase of the project with a budget of us$150 million.