FHWA Resource Center
GEOTECH & HYDRAULICS TEAM
Hydraulic Engineering Circular No. 11
DESIGN OF RIPRAP REVETMENT SI
Publication No. FHWA-IP-89-016
2000
ABSTRACT:
This revised version of Design of Riprap Revetment, Hydraulic Engineering Circular No. 11 (HEC-11), represents major revisions to the earlier (1967) edition of HEC-11. Recent research findings and revised design procedures have been incorporated. The manual has been expanded into a comprehensive design publication. The revised manual includes discussions on recognizing erosion potential, erosion mechanisms and riprap failure modes, riprap types including rock riprap, rubble riprap, gabions, preformed blocks, grouted rock, and paved linings. Design concepts included are: design discharge, flow types, channel geometry, flow resistance, extent of protection, and toe depth. Detailed design guidelines are presented for rock riprap, and design procedures are summarized in charts and examples. Design guidance is also presented for wire-enclosed rock (gabions), precast concrete blocks, and concrete paved linings.
DOCUMENT AVAILABILITY:
To download an electronic copy:
RELATED NHI TRAINING COURSE:
FHWA-NHI-135010, River Engineering for Highway Encroachments
FHWA TECHNICAL CONTACTS:
Dr. Larry Arneson
Sr. Hydraulics Engineer, FHWA Resource Center
Phone: (720) 963-3200
Email: larry.arneson@fhwa.dot.gov
Mr. Joe Krolak
Sr. Hydraulics Engineer, FHWA Headquarters
Phone: (202) 366-4611
Email: joseph.krolak@fhwa.dot.gov
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