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MISSOURI RIVER INNOVATIVE BANK STABILIZATION & AQUATIC & RIPARIAN HABITAT ENHANCEMENT @ LEWIS & CLARK REGIONAL WATER SYSTEM, VERMILLION, SD. Aerial shot fall 2007. Looking US @ L & C project, approximately one mile between white arrows.
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MISSOURI RIVER INNOVATIVE BANK STABILIZATION & AQUATIC & RIPARIAN HABITAT ENHANCEMENT @ LEWIS & CLARK REGIONAL WATER SYSTEM, VERMILLION, SD.
Aerial shot fall 2007. Looking US @ L & C project, approximately one mile between white arrows.
Our downstream key ties into the upstream section of a buried stone revetment for the highway bridge
Discussion of finer points inside & on-site. PRE-CON MEET-MISSOURI RIVER@L & C-TERRY STOLTENOW-11/1/07
CONCEPTUALLY • Start with a standard bank protection plan that is well understood, well designed, & time tested (low degree of risk) • Add to this the hydraulically rough & environmentally desirable Extreme Locked Logs (113) plus 49,000 unrooted willow pole plantings within & through the riprap, & 59,300 rooted stock plants for the lower, mid, & upper bank areas. Then cover (choke) all exposed stone with soil & seed !!
Stabilization / habitat cross-section from HDR, Inc. CONSTRUCTION-MISSOURI RIVER @ L & C
Rock box keeps rock “clean” & speeds production. CONSTRUCTION-MISSOURI RIVER@L & C-DERRICK-NOV 13, 2007
Tom Powell said they would wear it out, he was right! CONSTRUCTION-MISSOURI RIVER @ L & C-TERRY STOLTENOW-1-11-2008
MID-PROJECT KEYS{Straight trench perpendicular to high flow vectors, place willow poles on both sides in sloped bank area, fill with a 10 ft section of graded stone, backfill & compact 3 ft of soil, then seed}
Filling the key from the land side working toward the river. CONSTRUCTION-MISSOURI RIVER@L & C-TERRY STOLTENOW-11/29/07
Looking at Key #6, now stone filled & soil backfilled. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-Dec 13, 2007
LONGITUDINAL FILL STONE TOE PROTECTION {LFSTP}{Self-adjusting & self-filtering stone. Minimum 10 ft wide by 3 ft thick. Contractor placed 22,986 tons of stone for entire launchable toe.} (Amounts in actual construction have varied from 3.2 to 4.6 tons/ft. in concave & straight sections, to 6.3 to 8.4 tons/per ft. at convex areas (juts).
Looking US. 10 ft wide stone toe looking good! CONSTRUCTION-MISSOURI RIVER @ L & C-TERRY STOLTENOW-11/8/07
Looking US. Smoothing choke soil with the Bobcat. CONSTRUCTION-MISSOURI RIVER @ L & C-TERRY STOLTENOW-12/5/07
BANK CROSS-SECTION FROM HDR., INC Self-Adjusting LFSTP Locked Log Looking US at Station 11+00
Looking US. A cedar Fuzzy Extreme Locked Log CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
Looking US. Scraping branches off of the lower 15 ft of the Fuzzy Extreme Locked Log so stone to trunk contact is made, & the Locked Log is truly locked in place. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
Looking US. Fuzzy Extreme Locked Log is locked in place CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
Looking US. Note calm water between Locked Logs. LFSTP 10 ft wide CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
Looking US. Soil choked toe stone in foreground, US stone not choked yet. Specs call for a minimum of 6 inches of soil over stone, contractor is placing one ft of soil to allow for settling. More soil is better. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
Looking US. Note slack water DS of all Locked Logs CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 13, 2007
EXTREME LOCKED LOGS CAN BE RETROFITTED INTO EXISTING PROJECTS
Looking DS. Irregular bankline mimics natural shore CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
Looking US. Turbulence off ends of ExLL with “flat” water DS. Note uneven shore & soil choked stone. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
THE ENVIRONMENTAL AND HYDRAULIC ATTRIBUTES GO HAND-IN-HAND ON THIS PROJECT
Looking US @ self-adjusting toe stone & Extreme Locked Logs, natural bank US. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-NOV 15, 2007
Looking DS at ice buildup US of natural jam. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
ICE MANAGEMENT FOR STABILIZATION/RESTORATION PROJECTS Increase roughness of the bank and near-bank aquatic area!!! • Ice will form first in slow water • Ice will be thickest in the slower water • Next the entire stream has an ice cover • Then the ice-out occurs • The thickest ice near the bank will stay put so that plants are not sheared & smaller stones are not plucked
Ice surrounding ExLL fends off moving ice floes. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
Looking DS. Different thickness of ice show current directions and different velocities. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
Looking DS. Natural jam with ExLL US & DS. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
Looking DS. Natural jam with ExLL US & DS. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
Looking US. Close-up of ice surrounding ExLL. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
BANK CROSS-SECTION FROM HDR., INC Riprap blanket on 3 to 1 slope, 3 ft thick, with 49,000 integrated willow pole plantings in 4 rows Self-Adjusting LFSTP Locked Log Looking US at Station 11+00
Terry Stoltenow, construction inspector with HDR, Inc. with 6-7 ft long bundled willows CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
9 FT MISSOURI RIVER @ LEWIS & CLARK 15 FT Field analysis-willows grow well from +3 to +7 ft above the 1122 ft flow=1125 to 1129 Min. 6 inches soil 1130 4 on 1 slope 1129 3 on 1 slope 1128 1127 Vadose zone-field analysis shows 3 ft above stage 1124.5 to 1127.5 1126 1125 River flow elevations during growing season June-Sept 2002-2008 24K= 1124.5 June-Sept 2008 26K= 1124.7 Target nav. stage 31K= 1125.3 June-Sept 1967-2004 34K= 1125.5 Height of toe stone 28K= 1125.0 Use this one Basal ends of willows should be at ele. 1125
MISSOURI RIVER @ LEWIS & CLARK Uphill two rows willows are 9 ft long 4 on 1 slope 1130 First two rows of willows are 6-7 ft long 3 on 1 slope Soil choke 1125 Basal ends of willows should be at ele. 1125
Pull bucket back 8”, lean willow poles against stone. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-Dec 13, 2007
Looking US. All 4 rows of willows CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-Dec 12, 2007
Looking US at willows & stone. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-DEC 11, 2007
All 4 rows of willow integrated into riprap & soil choked CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-Dec 12, 2007
ALL CONSTRUCTION COMPLETE EXCEPT FOR INSTALLATION OF THE UPPER BANK ROOTED-STOCK PLANTINGS(and the small area where the dredge boat is moored)
Looking DS. Ice jam has raised river at toe. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-Feb 25, 2008
Looking US. River frozen, some tops of Locked Logs visible, pole plantings, & upper bank sloped to 4 on 1. CONSTRUCTION-MISSOURI RIVER @ L & C-DERRICK-Feb 25, 2008