DESCRIPTION:
This course provides participants with the recommended design procedures for the hydraulic design of culverts. Material for the 3-day course comes primarily from "Hydraulic Design of Highway Culverts," Hydraulic Design Series No. 5 (HDS-5), which is provided to participants. "Hydraulic Design of Energy Dissipators for Culverts and Channels" (HEC-14) is discussed, but not provided. Culvert Hydraulic Design/Analysis Computer Program (HY-8) is discussed and demonstrated. However, this is not a "hands-on" computer course. A portable hydraulic flume is set up in the classroom for the participants to observe hydraulic principles and the hydraulic effects of culverts, improved inlets, pipe slope, material roughness, and various end treatments. The participants measure velocity, discharge, and headwater in the flume under various conditions and use the information to make actual design calculations.

• Identify design alternatives based on culvert type, material, shape, and service-life considerations
• Describe the factors that govern inlet and outlet control and describe how each factor influences culvert performance
• Calculate tailwater depth and velocity and describe how tailwater affects culvert performance
• Design conventional culverts using HDS-5
• Improve culvert performance for inlet control culverts by designing an improved inlet using HDS-5
• Evaluate culvert outlet velocity and the need for energy dissipators, and select alternative energy dissipators using HEC-14
• Identify appropriate computer programs for culvert and energy dissipator design

TARGET AUDIENCE:
The course is suitable for entry-level personnel who have some drainage design experience or have taken FHWA-NHI-135065A. The course is valuable as a refresher course for those with previous culvert design training or experience.

NHI TRAINING INFORMATION:
NHI Scheduler  (703) 235-0534

SUBJECT MATTER EXPERT:
Eric Brown  (410) 962-3743

NHI TRAINING PROGRAM MANAGER:
Ward, Louisa  (703) 235-0523