Big Pipeline Crossing Protection Project for Williams on the Guadalupe River, South of

Victoria, TX. (near the harbor)

1.3 Million DollarsTook 3 crews 6 weeks to build!!

Summer 2005

DEEP PLANTING HUNDREDS OF

UNROOTED WILLOW POLES WHEN THE

COLDEST DAY WAS 103 DEGREES

• Bank erosion (lateral erosion) has exposed over 100 ft of pipeline, threatening pipeline integrity

• Co-designed by River Research & Design, Inc. & Submar, Inc. Contractor: Submar, Inc.

• Not a flashy stream, stays on the flood for months at a time

• Bed material: sand-silt-clay, not incised, rural.

• Pool-riffle-pool regime, slope < 1%

• Average width 100-150 ft, 10-18 ft tall banks

Guadalupe River @ Williams Pipeline Crossing, South of Victoria, TX (near the harbor)

PRE-PROJECT PHOTOS:

OCTOBER 2004 TO

FEBRUARY 2005

PRE-PROJECT Guadalupe River @ Williams Pipeline-Derrick-Oct 1, 2004

PRE-PROJECT-Looking US at the exposed pipeline, flow splits around island. Split flow always brings its own

challenges!!

PRE-PROJECT Guadalupe River @ Williams Pipeline-Derrick-Oct 1, 2004

PRE-PROJECT-Looking DS at the exposed pipeline.

Flow

THREE BENDWAY WEIRS

Bendway Weir #1BW

#2BW

#3

6 MONTHS LATER-Looking US. Bendway Weirs managing the thalweg.

6 MONTHS LATER-Guadalupe River-Mark Bordelon -3-14-2006

WILLOW PLANTING

Very hot down in Victoria, TX {103 degrees}. This was the

coldest day, it hit 112 degrees some days. We cut several

hundred willow branches & small trunks (3/4” to 1.5” butt

diameter, 6’ to 8 ft long, soaked them for 10 days, then

planted & watered them in (July-Aug time frame).

CONSTRUCTION-Guadalupe River @ Pipeline-John Lewis-July 2005

CONSTRUCTION-The constructed soaking pool for the willows. Pumps kept it full. Willows were cut & soaked for 10 days.

CONSTRUCTION-Guadalupe River @ Pipeline-Derrick – June 3, 2005

Live Siltation above LPSTP

Longitudinal Peaked Stone Toe Protection

CONSTRUCTION-Looking US. LPSTP in. Prepping bank for willows

CONSTRUCTION-Guadalupe River @ Pipeline-John Lewis-July 2005

CONSTRUCTION-Looking down slope @ row of willows above LPSTP, 2/3 in ground, 1/3 out. Riprap above willows.

CONSTRUCTION-Guadalupe River @ Pipeline-John Lewis-June 17, 2005

CONSTRUCTION-Looking US. Watering in live willow poles

CONSTRUCTION-Guadalupe River @ Pipeline-John Lewis-July 2005

CONSTRUCTION-Looking DS @ rows of willows & stone protection.

CONSTRUCTION-Guadalupe River @ Pipeline-John Lewis-June 17, 2005

13 MONTHS LATER-High water. Looking downhill @ riprap & rows of willows starting to flush (grow leaves).

13 MONTHS LATER-Guadalupe River Mark Bordelon 10-12-05

THE BEFORE & AFTERS

LOOKING FROM

UPSTREAM TO

DOWNSTREAM

PRE-PROJECT-Guadalupe River @ Williams Pipeline-Derrick-Oct 1, 2004

PRE-PROJECT-From US project limit, looking DS @ exposed pipe & vertical bank, thalweg slamming straight into bank

26 MONTHS LATER-From US project limits, looking DS. Three Bendway Weirs aligning thalweg along flow arrow

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

PRE-PROJECT Guadalupe River @ Williams Pipeline-Derrick-Oct 1, 2004

PRE-PROJECT-Looking DS at the exposed pipeline, thalweg impacting bank.

26 MONTHS LATER-Looking DS @ the protected pipeline, thalweg redirected & willow growth 8 to 16 ft tall after 2 years.

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

PRE-PROJECT Guadalupe River @ Williams Pipeline-Derrick-Oct 1, 2004

PRE-PROJECT-Looking DS at the exposed pipeline. Debris on pipeline, thalweg flowing under pipe.

26 MONTHS LATER-Looking DS @ the protected pipeline, great willow growth US & DS of pipeline right-of-way (hydraulic roughness).

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Looking DS, good sediment deposition on stone under dense 8 to 16 ft tall, 2”- 4” diameter willows.

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Uphill from large willows, great deposition on top of riprap

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Uphill from willows, grasses growing on deposited sediment

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Close-up on deposition and grasses (not planted).

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Thick ridge of deposition DS of willows (shadow).

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Thick deposition around planted willow.

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

26 MONTHS LATER-Native willow seedlings growing on deposition on top of riprap. We have turned a vertical eroding bank into a depositional area

with volunteer tree growth!!! Success & long-term stability!!

26 MONTHS LATER-Guadalupe River @ Williams Pipeline-Derrick 11-6-07

This PowerPoint presentation was developed & built by Dave Derrick.

Any questions or comments, call my personal cell @ 601-218-7717, or email @ d_derrick@r2d-eng.com

Enjoy the information!!

Peyton & Fred

the Aku