Boswell’s unique Underwater Engineering Division (BUE) with total in-house capabilities has provided the New York State Department of Transportation (NYSDOT) with NBIS bridge diving inspections, fathometer surveys, and the scour evaluation inspections, of NYS owned bridges spanning waterways for over 30 years. To date, BUE has been awarded consecutive term agreements and has performed bridge diving inspections on 7,000 plus substructure units (SSU) involving more than 2,000 bridges spanning waterways, and fathometer surveys on an additional 1000 bridges situated over water for the NYSDOT. These subaqueous services were performed statewide in the eleven (11) NYSDOT Regions.