NTBA has been performing hydrographic surveys since 1992. Currently, we are performing hydrographic surveys under our 6th three year Statewide Hydrographic Survey Retainer Contract for the LaDOTD. Our qualified personnel have completed well over 600 bridge site surveys with the methods and equipment required for precise hydrographic surveying. Our hydrographic survey systems are equipped with DGPS receivers and single beam echo sounders.
Project Services List:
Bridges
Utilities
Pipelines
Environmental Studies and Permitting
