Verification of ODOT Rock Channel Design Procedures [Fact Sheets]

Che, Daniel; Bricker, Jeremy; Khoury, Issam S.; White, Kevin D.; Mahabadi, Nariman; Kim, Taeksang; Kareem, Mamoon; Armin, Seyed; McCarthy, Jake

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Verification of ODOT Rock Channel Design Procedures [Fact Sheets]

2024-09-01
By Che, Daniel ; Bricker, Jeremy ; Khoury, Issam S.

File Language:

English

Details

Creators:

Che, Daniel ; Bricker, Jeremy ; Khoury, Issam S. ; White, Kevin D. ; Mahabadi, Nariman ; Kim, Taeksang ; Kareem, Mamoon ; Armin, Seyed ; McCarthy, Jake
Corporate Creators:

Ohio University ; University of Michigan ; University of Akron ; E.L. Robinson Engineering of Ohio Company
Corporate Contributors:

Ohio. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:
Resource Type:

Brief
Geographical Coverage:

Ohio;United States
Edition:

Fact Sheet
Corporate Publisher:

Ohio. Department of Transportation
Abstract:

The Ohio Department of Transportation (ODOT) employs rock channel protection (RCP), also known as riprap, to manage energy dissipation and prevent scouring at culvert and storm drain outlets. The design for RCP at outlets follows guidelines outlined in Figure 1002-4 of ODOT's Location and Design Manual Volume 2, incorporating specifications from ODOT Construction and Material Specifications 601. RCP types (Type A, Type B, and Type C) are determined based on size, with specifics such as type, length, and depth guided by pipe diameter and outlet velocity as shown in Figure 1002-4. This design method, established by ODOT in July 1968, is still used to calculate RCP dimensions. However, the origins of this methodology and the basis for Figure 1002-4 are unclear, prompting a review of current procedures or adoption of a new methodology to ensure proper RCP sizing at conduit outlets due to ODOT's relatively less conservative approach. The research team conducted scaled hydraulic modeling and identified hydraulic conditions that impact RCP lengths, including factors not considered in previous studies.
Format:

PDF
Funding:

37847, 115882
Download URL:

https://rosap.ntl.bts.gov/view/dot/86077/dot_86077_DS1.pdf
File Type:

[PDF - 836.60 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:fd8218e615ed5adc73e891f9d2d9a34602198711cd3b7239e918cd93f61d89c51063de64107a838633d218c4254dad91de0fe0d3d6d07f6742abb3766d925f9e

File Language:

English

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