BNSF Railroad


We were contracted by Kraemer North America to provide construction phase engineering services for the $49.7m replacement of the West Approach Spans of the BNSF Railroad over the Mississippi River near Memphis, TN. The existing bridge was scheduled to remain under train traffic during the construction of the replacement west approach structures.  Fisher Arnold’s construction engineering work included a full pre-construction condition survey of the existing bridge, and a bridge movement monitoring plan that utilized ultra-high-precision robotic total station monitoring equipment in conjunction with software-based data analysis to detect bridge movements within 0.01 ft. Additionally, Fisher Arnold provided all construction survey layout, elevations, and staking for the general contractor.