Committee on Design
Patricia Bush, Program Manager for Engineering
Membership on the TCHH is limited to the AASHTO Member Departments, which consist of the transportation departments of the 50 states, the District of Columbia, and Puerto Rico. When a vacancy occurs, nominations are made by each state’s Committee on Design members within that region, and appointments are made by the Committee on Design Chair. Currently each of the 4 AASHTO Regions are represented by 5 TCHH members. TCHH members do not need to be members of the Committee on Design.
Objective and Scope
The objective of this technical committee is to provide a focal point and working group with expertise in hydrology and hydraulics to develop AASHTO guidelines and policies for drainage design of transportation facilities.
State Comments and Questions
TCHH continuously solicits input from non-TCHH member states to improve the application and understanding of Hydraulic Engineering within linear transportation environments. Send research ideas, Drainage Manual questions/suggestions, or “hot topic” concerns applicable to Hydraulic Engineering to the TCHH chair, Jeff Syar (contact information below).
AASHTO released the AASHTO Drainage Manual, 1st Edition, which replaces the AASHTO Model Drainage Manual, published in 2005.
The technical committee is responsible for updating the Highway Drainage Guidelines, 4th Edition.
This newsletter is published biannually by TCHH. To be added or removed from the mailing list, to suggest articles, or to provide comments, contact Andrea Hendrickson (contact information below).
Issue 12 – Winter 2015
TCHH members actively promote, solicit, and participate in national and state hydraulic engineering research. TCHH collaborates and coordinates with committees of the Transportation Research Board (TRB) and state DOTs to develop research need statements applicable to hydraulic engineering for funding through the National Cooperative Highway Research Program (NCHRP).
This document contains active and completed research that TCHH is aware of pertaining to hydraulic and stormwater engineering.
TCHH maintains a Strategic Research Plan (SRP) to maximize the impact of hydrology and hydraulic research efforts to address critical needs and gaps in knowledge. The SRP is reviewed on an annual basis to ensure it remains relevant and applicable to current understanding and need. This SRP includes guidance for RNS submitters who are seeking AASHTO endorsement. The current SRP can be found here.
TRB Snap Search: Hydraulics & Hydrology – http://onlinepubs.trb.org/onlinepubs/snap/hydraulicsandhydrology.pdf
FHWA Bridges and Structures: Hydraulic Engineering – https://www.fhwa.dot.gov/engineering/hydraulics/