John has more than 30 years of experience in water resources engineering. He is manager of Ayres Associates' river engineering discipline and a project manager responsible for projects in bridge hydraulics, scour analysis, culvert design, and roadway drainage. John has been responsible for the hydraulics, scour, and countermeasure studies for hundreds of bridges in 15 states and overseas.
He teaches the Federal Highway Administration National Highway Institute (FHWA/NHI) HEC-RAS course nationwide and contributed to the HEC-RAS Hydraulic Reference Manual and the new FHWA manual HDS 7 "Hydraulic Design of Safe Bridges." John received an Instructor of Excellence award from NHI for his teaching in 2012 and 2013.
John's areas of expertise include the following:
- Hydraulic design of bridges
- Bridge scour evaluations
- Plans of action for scour critical bridges
- One-dimensional hydraulic modeling
- Two-dimensional hydrodynamics
- Floodplain restudies
- Floodplain management
- Sediment transport