LOW-DROP GRADE-CONTROL STRUCTURE

Authors: Rice, Charles; Kadavy, Kem

Submitted to: Transactions of the ASAE
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/15/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary: Grade-control structures prevent channel degradation and stabilize degrading channels. Experiments were conducted to develop design criteria for a low-drop, grade-control structure that has good performance characteristics and general acceptance by the engineering community involved with stabilization of degrading channels. Criteria are presented to design the structure given the channel width, critical depth, drop height, and tailwater elevation, and to determine the size and placement of riprap downstream of the structure to ensure the integrity of the structure.

Technical Abstract: Grade-control structures are necessary to prevent channel degradation and to stabilize a degrading channel. An acceptable structure for low-drop conditions (drop height/critical depth, h/dc