Services We Offer

O’Bryan recognizes our clients need accurate and timely information to make informed decisions. To support client needs, O’Bryan provides a wide array of services to our Heavy Civil and Bridge Contractors. Some of the services we provide include:

Structural Engineering for Contractor Field Operations:

Structural Bridge Certifications for AHTD Bridge Crossings. We have analyzed over 900 bridges on 320 Structural Certifications for 60 different Contractors over the past 6 years.

• In addition, we perform:

• Form Design

• Cofferdam Design

• Overhang Design

• Safety Platforms Design

• Bridge Demolition Procedures and Plan

3D Models for GPS Machine Control:

  • O’Bryan provides complete 3D Surface and Subgrade Models, including 3D Linework for Storm Drainage and 2D Linework for Right of Way, Drives, Islands, etc.
  • During the past few years, O’Bryan has modeled more than 50 miles of DOT Highway/Interstate for our clients using both Trimble and Topcon systems. Recent clients include Weaver Bailey Contractors, Inc.; Nabholz Corp.; Crossland Heavy Contractors; Pine Bluff Sand and Gravel; Johnsville Co.; and Cannon Contracting.


Specialized Training for GPS Surveying/Layout and 3D Model Building:

O’Bryan Engineering, Inc. founder, Henry Burch, personally provides customized individual training for Carlson Survey and Roads Autocad and Data Collectors SurvCE. After consulting with the client concerning their training goals and the students’ level of expertise, Mr. Burch customizes the training curriculum to ensure the client’s needs are met. Training is conducted in practical easy to understand terms, and in a way the student can immediately put to use. Since the training is customized to accomplish the tasks the client requires, we don’t waste our client’s valuable time discussing or teaching areas of the software that have no practical use for them. In addition to interactive discussion during training, we provide written procedures to reinforce what our client has learned. At the conclusion of the training, your field personnel will be able to use the software confidently and in a way to enhance productivity and accuracy.


Verification of Earthwork Pay Quantities by use of Autocad Surface Volume

Comparison of 3D Surfaces ( Original Cross Sections vs. Finish Subgrade ) to obtain volume comparison.


Quantities by use of Autocad Surface Volumes:

Comparison of 3D Surfaces ( Original Cross Sections vs. Finish Subgrade ) to obtain volume comparisons.


Expert Witness in Litigation, Arbitration and Claims Commission Hearings:

Due to his expertise in the field, Mr. Burch provides Expert Witness testimony in depositions, Expert Witness testimony in court, and witness/attorney preparation for, or in anticipation, of litigation.


Theoretical Bridge Deck Grades:

Computation of theoretical deck grades prior to profiling beams. If the contractor elects to do the field profiling, O’Bryan takes that data and will provide clip angle grades