Eric R. Friedrich, P.E., CFM
President
B.S. Civil Engineering, University of Texas, 1983

Mr. Friedrich’s experience consists of preliminary engineering and PS&E development for highway and bridge projects, particularly hydrology and hydraulics analysis and design. He has managed projects for roadway, bridge and drainage design. In 2001 he founded
H & H Resources, Inc. His prior experience includes 11 years with the TxDOT Bridge Division Hydraulics Section and the Fort Worth District.

He has provided drainage studies, culvert, bridge, storm sewer, and channel hydraulics, detention ponds, erosion control, bridge scour, pump station design, and floodplain/floodway coordination with FEMA. Modeling expertise includes THYSYS Culvert and WinStorm; HEC-1, HEC-HMS, HEC-2, HEC-RAS; SCS TR-20, WSP-2, USGS PeakFQ, Geopak Drainage and EPA SWMM. Mr. Friedrich is an instructor under contract with University of Texas at Arlington teaching hydrology and hydraulics to TxDOT personnel.

Mr. Friedrich has been involved in the development of the following technical publications, standards development, and policy-generation:
• TxDOT Bridge Division Hydraulic Manual 3rd Edition, 1985
• AASHTO Task Force on Hydrology and Hydraulics, 1985 – 1990
• TxDOT Bridge Scour Evaluation Program, 1990
• TxDOT IH 10 Katy Freeway Reconstruction Program, Drainage Design Criteria, 2001-05
• Texas Engineering Extension Service, Professional Development Training Program, Hydrologic and Hydraulic Design for Culverts and Storm Drains, 2003-04.
• TxDOT US 290 / Hempstead Corridor Program Management, Drainage Design Criteria, 2006-09

Mr. Friedrich is a member of the American Society of Civil Engineers (ASCE), and the Texas Floodplain Management Association (TFMA).