
Download FHWA Hydraulic Toolbox:
https://www.fhwa.dot.gov/engineering/hydraulics/software/toolbox404.cfm
Download HEC No. 15, Third Edition "Design of Roadside Channels with Flexible Linings" (PDF file)
https://www.fhwa.dot.gov/Engineering/hydraulics/library_arc.cfm?pub_number=15&id=32
Download FLH FP-14 "Standard Specifications for the Construction of Roads and Bridges on Federal Highway Projects" (PDF file)
https://highways.dot.gov/federal-lands/specs
NWS NOAA Precipitation Frequency Data Server
https://hdsc.nws.noaa.gov/pfds/
NOAA Technical Memorandum NWS Hydro-35 (PDF file)
https://www.weather.gov/media/owp/hdsc_documents/TechnicalMemo_HYDRO35.pdf
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 14 (PDF File) "Hydraulic Design of Energy Dissipators for Culverts and Channels"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=13&id=129
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engieering Circular No. 22 (PDF File)
"Urban Drainage Design"
https://www.fhwa.dot.gov/engineering/hydraulics/pubs/hif24006.pdf
FHWA Hydraulic Engineering Circular No. 21 (PDF File)
"Design of Bridge Deck Drainage"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=21&id=46
Hydraulic Engineering Circular No. 18 (PDF File)
"Evaluated Scour at Bridges"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=17&id=151
Hydraulic Engineering Circular No. 20 (PDF File)
"Stream Stability at Highway Structures"
https://www.fhwa.dot.gov/Engineering/hydraulics/library_arc.cfm?pub_number=19&id=152
Download HEC-RAS:
https://www.hec.usace.army.mil/software/hec-ras/download.aspx
Hydraulic Engineering Circular No. 20 (PDF File)
"Stream Stability at Highway Structures"
https://www.fhwa.dot.gov/Engineering/hydraulics/library_arc.cfm?pub_number=19&id=152
Hydraulic Engineering Circular No. 18 (PDF File)
"Evaluated Scour at Bridges"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=17&id=151
Hydraulic Engineering Circular No. 18 (PDF File)
"Evaluated Scour at Bridges"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=17&id=151
Hydraulic Engineering Circular No. 18 (PDF File)
"Evaluated Scour at Bridges"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=17&id=151
Download HEC No. 15, Third Edition "Design of Roadside Channels with Flexible Linings" (PDF file)
https://www.fhwa.dot.gov/Engineering/hydraulics/library_arc.cfm?pub_number=15&id=32
Download FP-14 - "Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects" (PDF file):
https://highways.dot.gov/sites/fhwa.dot.gov/files/docs/federal-lands/specs/12851/fp14.pdf
FHWA Hydraulic Engineering Circular No. 22 (PDF File)
"Urban Drainage Design"
https://www.fhwa.dot.gov/engineering/hydraulics/pubs/hif24006.pdf
NWS NOAA Precipitation Frequency Data Server
https://hdsc.nws.noaa.gov/pfds/
NOAA Technical Memorandum NWS Hydro-35 (PDF file)
https://www.weather.gov/media/owp/hdsc_documents/TechnicalMemo_HYDRO35.pdf
FHWA Hydraulic Engineering Circular No. 22 (PDF File)
"Urban Drainage Design"
https://www.fhwa.dot.gov/engineering/hydraulics/pubs/hif24006.pdf
FHWA Hydraulic Engineering Circular No. 22 (PDF File)
"Urban Drainage Design"
https://www.fhwa.dot.gov/engineering/hydraulics/pubs/hif24006.pdf
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 14 (PDF File) "Hydraulic Design of Energy Dissipators for Culverts and Channels"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=13&id=129
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
FHWA Hydraulic Engineering Circular No. 23 - Volume 2 (PDF File)
"Bridge Scour and Stream Instability Countermeasures: Experience, Selection, and Design Guidance - Third Edition"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=23&id=143
Hydraulic Engineering Circular No. 20 (PDF File)
"Stream Stability at Highway Structures"
https://www.fhwa.dot.gov/Engineering/hydraulics/library_arc.cfm?pub_number=19&id=152
Hydraulic Engineering Circular No. 18 (PDF File)
"Evaluated Scour at Bridges"
https://www.fhwa.dot.gov/engineering/hydraulics/library_arc.cfm?pub_number=17&id=151
** All videos are downloadable **
Learn how to apply the FHWA Hydraulic Toolbox to real-world water resources engineering problems. This practical course walks you step by step through the key hydraulic analysis tools included in the software, blending focused lessons with hands-on exercises that mirror real project workflows. Instead of simply reviewing features in isolation, you’ll learn how to combine multiple calculators to evaluate and design hydraulic structures with confidence.
You’ll begin with an overview of the Toolbox interface and navigation, followed by lessons on commonly used modules such as weir and orifice flow, culvert hydraulics, energy dissipators, channel capacity, and scour calculations. From there, you’ll explore more specialized tools, including bridge hydraulics, riprap sizing, and storm drain design. Each lesson demonstrates not only how to input data but also how to interpret results and understand the assumptions behind each method.
In the exercise portion of the course, you’ll apply what you’ve learned to complete full design and analysis scenarios. These case studies include designing a roadside ditch, sizing riprap for pier protection, and checking scour depth at a bridge crossing. You’ll also work through problem-solving strategies for common engineering challenges, such as balancing channel conveyance with erosion protection or verifying culvert performance under extreme flow conditions.
Throughout the course, the emphasis is on developing both technical skills and engineering judgment. By practicing with real-world examples, you’ll see how to weigh hydraulic performance, safety, and regulatory requirements when selecting and applying the appropriate tool.
By the end of the course, you’ll be able to confidently navigate the Hydraulic Toolbox, run analyses across multiple modules, and apply the results to practical design and evaluation projects in transportation, flood control, and river engineering. No prior experience with the Toolbox is required, though a working knowledge of hydraulics will help you get the most out of the material.