sulphur creek @ dunnigan burn dump, yolo county, ca. (30 miles north of sacramento, ca.) built 1998
TRANSCRIPT
Sulphur Creek @ Sulphur Creek @ Dunnigan Burn Dunnigan Burn
Dump,Dump,
Yolo County, CA.Yolo County, CA. (30 miles north of (30 miles north of Sacramento, CA.)Sacramento, CA.)
BUILT 1998BUILT 1998
Pre-Project Pre-Project conditions, conditions, going from going from
upstream to upstream to downstreamdownstream
Pre-Project conditions-Looking US @ US section of project.
Pix by John McCullah-Oct 1998
Pre-Project conditions-High water, looking US. Thalweg @ toe of cliff.
Pix by John McCullah-Winter 1997
Removal of this tree was
required, but it could have been
used for live cuttings – if
some water had been provided !!
Pre-Project conditions-Looking US @ US end of project.
Pix by John McCullah
Pre-Project conditions, high water, looking DS @ project area.
Pix by John McCullah-Winter 1997
Pre-Project conditions-High water, looking DS @ project area.
Pix by John McCullah-Winter 1997
Pre-Project conditions-Looking DS @ exposed burn dump material.
Pix by John McCullah-Oct 1998
Pre-Project conditions-Looking DS at exposed burn dump material
Pix by John McCullah-Oct 1998
The The PLANPLAN
Conceptually, for Conceptually, for this project, we this project, we need complete need complete
separation separation between the between the stream & the stream & the
material in the material in the burn dump, LPSTP burn dump, LPSTP
is the answeris the answer
THE PLAN !!
Dunnigan burn dump footprint: classified as toxic, since it is unknown what was dumped & burned
LPSTPBENDWAY WEIR
KEY
THE PLAN !!
THE PLAN !!
Thalweg Alignment Pre-Project Condition
PRE-PROJECT THALWEG
Footprint of the Dunnigan burn dump
THE PLAN !!
Footprint of the Dunnigan burn dump
LPSTPBENDWAY WEIR
KEY
Thalweg Management Post-Project Condition
THALWEG-Post Project
THE PLAN !!
Thalweg Management Pre & Post-Project Conditions
THALWEG-Post ProjectTHALWEG-Pre-Project
The original The original design had 800 ft design had 800 ft
of gabions for of gabions for $300k. Our $300k. Our
design had 2400 design had 2400 ft of LPSTP plus ft of LPSTP plus
13 Bendway 13 Bendway Weirs plus Weirs plus
bioengineering bioengineering for $110k!!for $110k!!
From
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-senss.co
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The Longitudinal The Longitudinal Peaked Stone Toe Peaked Stone Toe
Protection Protection (LPSTP) is (LPSTP) is
constructed from constructed from a Self-Adjusting, a Self-Adjusting,
Self- Filtering Self- Filtering stonestone
Self-Adjusting, Self-Filtering StoneSelf-Adjusting, Self-Filtering Stone Depending on size, angularity, and gradation, stone can be Depending on size, angularity, and gradation, stone can be
neither, either, or both!!neither, either, or both!!Self-Adjusting Stone:Self-Adjusting Stone:
Stone must be well-graded (from coarse to fine) so that Stone must be well-graded (from coarse to fine) so that it has the ability to "launch", or self-adjust into, and armor, it has the ability to "launch", or self-adjust into, and armor, scour holes formed on the streamward side, and/or stream scour holes formed on the streamward side, and/or stream end, of a river training structure.end, of a river training structure.-Charlie Elliott says a good rule of thumb in Mississippi sand--Charlie Elliott says a good rule of thumb in Mississippi sand-bed streams {CAUTION: this might not apply equally well to bed streams {CAUTION: this might not apply equally well to every stream in the world} is that one ton of rock per linear ft every stream in the world} is that one ton of rock per linear ft will armor three ft of scourwill armor three ft of scourSelf-Filtering StoneSelf-Filtering Stone
A soil analysis should always be performed to A soil analysis should always be performed to determine stability and erodability of bank materials and determine stability and erodability of bank materials and whether a filter material, (either granular or synthetic) is whether a filter material, (either granular or synthetic) is required. required.
A self-filtering stone that has worked well on the A self-filtering stone that has worked well on the Mississippi River, and numerous other rivers and smaller Mississippi River, and numerous other rivers and smaller streams (acting as a granular filter to prevent loss of streams (acting as a granular filter to prevent loss of underlying bank material) has 10% to 15% of the gradation underlying bank material) has 10% to 15% of the gradation either less that 4 inches in diameter, or less than one pound either less that 4 inches in diameter, or less than one pound in weight, depending on how the stone is specified.in weight, depending on how the stone is specified.
LONGITUDINAL PEAKED STONE LONGITUDINAL PEAKED STONE
TOE PROTECTION {LPSTP}TOE PROTECTION {LPSTP}
Description: A continuous stone dike placed longitudinally Description: A continuous stone dike placed longitudinally at, or slightly streamward of, the toe of the eroding bank. at, or slightly streamward of, the toe of the eroding bank. Cross-section is triangular. The LPSTP does not Cross-section is triangular. The LPSTP does not necessarily follow the toe exactly, but can be placed to necessarily follow the toe exactly, but can be placed to form a "smoothed" alignment through the bend. form a "smoothed" alignment through the bend. Smoothed alignment might not be desirable from the Smoothed alignment might not be desirable from the environmental or energy dissipation points of view . environmental or energy dissipation points of view . Amount of stone used (2 tons/linear ft, 1 ton/ft, or less) Amount of stone used (2 tons/linear ft, 1 ton/ft, or less) depends on depth of scour at the toe, estimated stream depends on depth of scour at the toe, estimated stream forces (impinging flow) on the bank, and flood durations forces (impinging flow) on the bank, and flood durations and stages.and stages.
Tie-backs are short dikes connecting the LPSTP to the Tie-backs are short dikes connecting the LPSTP to the bank at regular intervals. Tie-backs are usually the same bank at regular intervals. Tie-backs are usually the same height as the LPSTP or elevated slightly toward the bank height as the LPSTP or elevated slightly toward the bank end, and are keyed into the bank. If tie-backs are long end, and are keyed into the bank. If tie-backs are long they should be angled upstream to act as bendway weirs. they should be angled upstream to act as bendway weirs.
ConstructiConstruction beginson begins
Looking Looking upstream @ upstream @ LPSTP and LPSTP and the US key the US key
& flow & flow entrance entrance
conditionsconditions
Pix by John McCullah-Spring 1999
6 months later-Looking US @ LPSTP @ US end of project.
Pix by John McCullah - January 2002
3+ Years later-Looking US @ confluence near US end of project.
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 08
9+ Years Later-Looking US @ confluence of two creeks coming into the project
When scour When scour occurs, the occurs, the
LPSTP is LPSTP is designed to designed to
launch into the launch into the scour hole, scour hole,
thereby armoring thereby armoring it.it.
Longitudinal Peaked Stone Longitudinal Peaked Stone Toe Protection (LPSTP)Toe Protection (LPSTP)
As-built
After a couple of high flow events stream has scoured at
the toe & stone has self-adjusted
Sediment has deposited landward of the LPSTP
DURING CONSTRUCTION-Looking DS @ upper end LPSTP.
Pix by John McCullah - October 1998
Buckeye tree is preserved
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking DS @ LPSTP.
Key Key ConstructiConstructi
onon
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Digging a key trench.
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Placing key stone in key trench.
Pix by John McCullah-Spring 1999
6 months later-Looking DS @ LPSTP with deposition.
Sulphur Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
9+ Years Later-Looking DS @ deposition in weir field at cliff area
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Transplanting the Cottonwood tree.
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Transplanting tree behind LPSTP.
From upstream at From upstream at the cliff looking the cliff looking downstream at downstream at the section of the section of
the project the project immediately immediately
adjacent to the adjacent to the burn dump areaburn dump area
(Mini case study-10 (Mini case study-10 slides)slides)
Mini case study: 1 of 10
The Bendway Weirs are The Bendway Weirs are designed to reduce designed to reduce velocities near the velocities near the LPSTP, & move the LPSTP, & move the
thalweg to a location thalweg to a location off the ends of the off the ends of the Bendway Weirs. Bendway Weirs.
Weirs also provide Weirs also provide protection protection
redundancy.redundancy.Mini case study: 2 of 10
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking DS @ LPSTP & 1 Bendway Weir
Mini case study: 3 of 10
Pix by John McCullah-Jan 1999
3 months later-Looking DS @ tall cliff area. The weirs were not overtopped the first winter.
Mini case study: 4 of 10
Mini case study: 5 of 10
Pix by John McCullah-Jan 1999
3 months later-after the water receded-Looking DS. Note very little deposition between weirs.
Pix by John McCullah - Jan 17, 2001
2+ Years-Looking DS @ the project bend, deposition in weir field.
Mini case study: 6 of 10
Pix by John McCullah - Jan 2002
3+ Years later-Looking DS @ deposition in weir field with some scalloping of deposited material at stream ends-as can
be expected.
Mini case study: 7 of 10
Pix by John McCullah - January 2002
3+ Years later-Looking DS @ BW with racked debris on each weir.
Mini case study: 8 of 10
Mini case study: 9 of 10
Pix by John McCullah-Winter 2002
4 yrs later, looking DS, BW’s & LPSTP separate Dunnigan Burn Dump from the stream erosion, note deposition between weirs,
thalweg trace (black line), & cutbank on edge of pointbar.
Sulphur Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
9+ Years Later-Looking DS @ completely filled in Bendway Weir field results in a wide buffer of
protection for the burn dump.
Mini case study: 10 of 10
Looking Looking downstream @ downstream @
the channel @ the the channel @ the downstream end downstream end of the cliff. Burn of the cliff. Burn dump area is just dump area is just
downstreamdownstream (Mini case study-4 slides)(Mini case study-4 slides)
Mini case study: 1 of 4
Pix by John McCullah-Spring 2002
4 Years later-Looking DS @ deposition within Bendway Weir field
Mini case study: 2 of 4
Pix by John McCullah-Spring 2002
4 Years later-Looking DS @ deposition between Bendways
Mini case study: 3 of 4
Pix by John McCullah - January 2003
4+ Years-Looking DS-Scour & deposition within channel & weir field
Mini case study: 4 of 4
Looking Looking upstream @ upstream @
the cliff the cliff section of the section of the project. Burn project. Burn
dump is dump is downstreamdownstream
(Mini case study-9 slides)(Mini case study-9 slides)Mini case study: 1 of 9
If only the engineer and contractor had allowed designer use of the water truck to water-in the cottonwood cuttings …
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking US @ LPSTP.
Mini case study: 2 of 9
Pix by John McCullah - October 1998
CONSTRUCTION COMPLETE-Looking US @ LPSTP & Bendway Weirs & keys
Mini case study: 3 of 9
Pix by John McCullah-Jan 1999
3 months later-Looking US @ flow through & Bendway Weirs
Mini case study: 4 of 9
Pix by John McCullah-March 1999
6 months later-Looking US @ keys, LPSTP, & Bendway Weirs
Mini case study: 5 of 9
Pix by John McCullah - January 2002
4+ Years later-Looking DS @
Mini case study: 6 of 9
Pix by John McCullah - January 2002
4+ Years later-Looking US @
Mini case study: 7 of 9
Pix by John McCullah - January 2003
5+ Years-Looking US-Fine deposition within Bendway Weir field
Mini case study: 8 of 9
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
9+ Years later-Looking US @ sediment almost filling the weir field
Mini case study: 8 of 9
Looking Looking upstream @ upstream @
the section of the section of the project the project
adjacent to the adjacent to the burn dump burn dump
areaarea (Mini case study-9 (Mini case study-9 slides)slides)Mini case study: 1 of 9
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking US @ LPSTP (next to dump)
Mini case study: 2 of 9
Pix by John McCullah-Spring 2002
3+ Years later-Looking US @ some deposition & veg in weir field
Mini case study: 3 of 9
Pix by John McCullah-Spring 2002
4+ Years later-Looking US @ burn dump area & weir field
Mini case study: 4 of 9
Pix by John McCullah-Spring 2002
4+ Years later-Looking US @ scour @ stream ends of weirs
Mini case study: 5 of 9
Pix by John McCullah - January 2003
4+ Years-Looking US @ deposition & scour.
Mini case study: 6 of 9
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
9+ Years Later-Looking US. Flow scallops between ends of BW’s.
Mini case study: 7 of 9
9+ Years Later-Looking US @ channel and ends of Bendway Weirs.
Mini case study: 8 of 9
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
9+ Years Later-Looking US @ deposition in weir field.
Mini case study: 9 of 9
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
Looking Looking downstream @ downstream @ the section of the section of
the project the project right next to right next to
the burn dump the burn dump areaarea
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking DS @ LPSTP (next to dump)
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Hydro seeding burn dump area.
Pix by John McCullah-March 1999
6 months later-Looking DS @ dump in foreground & BW’s
Seed certificates were never required by the Engineer even when designer warned of possible fraud from hydroseeding contractor
Pix by John McCullah - Jan 17, 2001
2+ Years-Looking DS @ right bank & left bank stabilization
Pix by John McCullah - Jan 17, 2001
2+ Years-Looking DS @ smooth transition between bends
Pix by John McCullah - Jan 17, 2001
2+ Years-Looking DS, close-up of ends of Bendway Weirs
Pix by John McCullah - January 2002
4+ Years later-Looking DS @ channel & deposition within BW’s
Pix by John McCullah - January 2002
3+ Years later-Looking DS @ Bendways & LPSTP
Pix by John McCullah - January 2002
3+ Years later-Looking DS @ scour, debris, & deposition in weir field
BeforeBefore
3+ 3+ years years AfterAfter
Pix by John McCullah - January 2002
The specified native seed mix was expensive ($600/ac) but no natives have grown – only weeds!
Pix by John McCullah - January 2003
4+ Years-Looking DS-Fine deposition within Bendway Weir field
Pix by John McCullah - January 2003
4+ Years-Looking DS-Fine deposition within Bendway Weir field
Pix by John McCullah - January 2003
4+ Years-Looking DS-Thalweg at stream ends of Bendway Weirs
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 08
9+ Years Later-Looking DS @ completely filled in Bendway Weir field
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 08
9+ Years Later-Looking DS @ burn dump in foreground, keys, top of LPSTP, completely filled in Bendway Weir field, & excellent transition from the right bank to the left bank (“S” shaped bend)
Looking Looking streamward streamward
@ mid- @ mid-project project
Bendway Bendway WeirsWeirs
Clay soil was imported for
cover to seal the burn dump area.
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking DS @ BW’s & key area
Pix by John McCullah - October 1998
CONSTRUCTION COMPLETE-LPSTP & Bendway Weir & key
LPSTP
Bendway Weir
LPSTP
Key
Pix by John McCullah - October 1998
CONSTRUCTION COMPLETE-LPSTP & Bendway Weir & key
Pix by John McCullah-March 1999
6 months later-Looking @ key, LPSTP, & Bendway Weir
Pix by John McCullah - January 2002
3+ Years later-Looking @ LPSTP & Bendway Weir
Pix by John McCullah - January 2002
3+ Years later-Looking @ stream end of a Bendway Weir
Looking Looking downstream downstream
@ the @ the downstream downstream right bank right bank
keykey
Downstream key at 30o angle to stream flow
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking DS @ the right bank DS key.
The right to The right to left crossing & left crossing & the left bank the left bank protectionprotection
(first THE PLAN, note (first THE PLAN, note thalweg trace, then the thalweg trace, then the
crossing pix)crossing pix)
THE PLAN !!
Footprint of the Dunnigan burn dump
LPSTPBENDWAY WEIR
KEY
Thalweg Management Post-Project Condition
THALWEG-Post Project
Pix by John McCullah-Jan 1999
3 months later-Looking DS @ Bendways and left bank LPSTP
Pix by John McCullah - January 2002
3+ Years later-Looking DS @ right & left banks & channel
Weeds-Russian star thistle
Pix by John McCullah - January 2003
4+ Years-Looking DS-Silt fence still in place! Left bank in background
9+ Years later-Looking DS @ ends of BW’s & left bank LPSTP protection
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 2008
Looking Looking downstream @ downstream @ the LPSTP left the LPSTP left
bank bank protectionprotection
Pix by John McCullah - January 2002
3+ Years later-Looking DS @ left bank LPSTP
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah 2008
9+ Years Later-Looking DS @ left bank LPSTP with road @ DS end
Looking Looking upstream @ upstream @ the left bank the left bank
LPSTP LPSTP protectionprotection
Pix by John McCullah - October 1998
DURING CONSTRUCTION-Looking US @ left bank LPSTP
Pix by John McCullah - Jan 17, 2001
2+ Years-Looking US @ left bank LPSTP protection
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 08
9+ Years Later-Looking US @ left bank LPSTP, has launched as designed
Buckeye Creek @ Dunnigan Burn Dump-Pix by McCullah-Feb 14, 08
9+ Years Later-Looking US @ left bank LPSTP & mid-project key
CURRENT STATE CURRENT STATE OF THE PROJECT: OF THE PROJECT: What water sees What water sees
9 years & 8 9 years & 8 months after months after
project project completion. completion.
Starting US & Starting US & flowing DS.flowing DS.
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking US @ the confluence US of the project
9+ Years-Looking @ the US end of the project. The US key extends far upstream of the current flow attack area. Channel is stable in all dimensions.
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking DS @ flow in cliff area. All stable (veg in weir field area)
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking DS @ channel alignment adjacent to burn dump area. Deposition in weir field, Bendway Weirs in good shape, smooth channel alignment results in stability through this entire critical reach.
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking DS @ deposition within weir field provides 50 ft wide buffer between stream and LPSTP bank protection for dump
area. Note smooth transition from right bank to left bank flow.
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking DS @ transition of flow from right bank to left.
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking @ deposition streamward of left bank US key.
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-Looking US @ self-adjusting stone & veg in left bank protection
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
9+ Years-From road looking US @ left bank protection & DS key, all stable
Buckeye Creek @ Dunnigan Burn Dump-Pix by Derrick - May 30, 2008
LESSONS LEARNED: For the LESSONS LEARNED: For the last 9+ years the project last 9+ years the project overall has performed overall has performed extraordinarily well. The extraordinarily well. The Bendway Weirs were designed Bendway Weirs were designed too tall, however, over time too tall, however, over time the weir field has filled in the weir field has filled in completely & become completely & become vegetated, providing a 50 ft vegetated, providing a 50 ft wide buffer between the wide buffer between the stream & the main protection, stream & the main protection, the LPSTP. All keys are located the LPSTP. All keys are located in depositional areas. The flow in depositional areas. The flow transition from the right bank transition from the right bank protection to the left bank protection to the left bank protection is as good as can be protection is as good as can be expected. But check your seed expected. But check your seed tickets!!tickets!!
It’s over!!!!It’s over!!!!THE JOHN & DAVE SHOW THANKS YOU FOR YOUR ATTENTION !!