Hickahala Creek Pipeline Protection Project at milepost 347.64 Tate County, Senatobia, MS (Looking across and upstream in this view) Designed jointly by Submar, Inc & River Research and Design, Inc, Installed, & Monitored by: Submar Incorporated 805 Dunn St., Houma, LA www.R2D-ENG.com www.Submar.com
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Hickahala Creek Pipeline Protection Project at milepost 347.64 Tate County, Senatobia, MS (Looking across and upstream in this view) Designed jointly by.
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Hickahala Creek Pipeline Protection Project at milepost 347.64Tate County, Senatobia, MS (Looking across and upstream in this view)Designed jointly by Submar, Inc & River Research and Design, Inc,
Installed, & Monitored by:Submar Incorporated
805 Dunn St., Houma, LAwww.R2D-ENG.com www.Submar.com
Arresting an active headcut
at the downstream end
of the ACM
July 2004
Looking US 10 months after project completion, veg looking good, note mat has arrested a small headcut
LOOKING US, JULY 2004
April 2005
ACM is acting as a “hinged” grade control structureLooking US 1 year later, headcut of similar size as 2004
LOOKING US, JULY 2004
April 2006
Another year later, ACM is acting as a “hinged” grade control structure (adjusting to bed lowering due to headcut)
LOOKING US, JULY 2004
April 2006
Submar ACM system has arrested a larger headcut
LOOKING US, JULY 2004
March 2007
1-year later, larger headcut arrested by Submar mat
April 2007
Note uneven DS edge of adjusting mat. Pipeline still well protected.
January 2008
Approximately 14 ft of mat left until headcut gets back to the pipeline.
Pix by Lloyd Falgout
March 18, 2009
A more uniform adjustment of the mat to the headcut, but still approximately 14 ft until the
headcut gets back to the pipeline.
Pix by Derrick
March 18, 2009
Looking perpendicular to flow at ACM adjusting to stabilize the headcut.