stream crossings i: experiments on box culvert design for
TRANSCRIPT
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University of Massachusetts AmherstScholarWorks@UMass AmherstInternational Conference on Engineering andEcohydrology for Fish Passage
International Conference on Engineering andEcohydrology for Fish Passage 2016
Jun 22nd, 9:30 AM - 9:45 AM
Stream Crossings I: Experiments on Box CulvertDesign for Fish PassageJessica L. KozarekUniversity of Minnesota - Twin Cities
S. MielkeUniversity of Minnesota - Twin Cities
M. HernickUniversity of Minnesota - Twin Cities
B. MoseyUniversity of Minnesota - Twin Cities
J. HatchUniversity of Minnesota - Twin Cities
Follow this and additional works at: https://scholarworks.umass.edu/fishpassage_conference
This Event is brought to you for free and open access by the Fish Passage Community at UMass Amherst at ScholarWorks@UMass Amherst. It hasbeen accepted for inclusion in International Conference on Engineering and Ecohydrology for Fish Passage by an authorized administrator ofScholarWorks@UMass Amherst. For more information, please contact [email protected].
Kozarek, Jessica L.; Mielke, S.; Hernick, M.; Mosey, B.; and Hatch, J., "Stream Crossings I: Experiments on Box Culvert Design for FishPassage" (2016). International Conference on Engineering and Ecohydrology for Fish Passage. 26.https://scholarworks.umass.edu/fishpassage_conference/2016/June22/26
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Experiments on Box Culvert Design for Fish Passage
Jessica L. KozarekS. Mielke, M. Hernick, B. Mosey, and J.
Hatch
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Culverts in Minnesota
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Culverts in Minnesota
Trout Streams
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Culverts in Minnesota
Trout Streams
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Culverts in Minnesota
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Critical Topeka Shiner Habitat
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1. Evaluation of design considerations for recessed/embedded culverts
2. Novel boundary roughness retrofits
3. Evaluation of behavioral barriers in long dark culverts
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Embedded (recessed) culverts
Streambed Material
Goals: •Natural streambed roughness
•Slower velocities than culvert set at streambed grade.
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Flume Experiments:
What is the impact of filling a recessed culvert
–streambed stability–roughness in the culvert–above the culvert?
How does this change with:–flow rate–slope–grain size?
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Embedded Culvert SummaryFilling:
– less risk of upstream scour or headcuts
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Embedded Culvert SummaryStructures:
– Sediment stability in culverts – less risk upstream– Flow complexity, pools, and flow refugia– Avoid near the culvert entrance
Flow
Structures
Filled
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Differences between experiments and field observations:
•Vegetation!•Extended low flows•Grain size distribution and suspended load
Experimental Limitations:•Scaling Interpretation•Single channel geometry and channel width to culvert width ratio.•Single entrance condition
Site specific analysis of flow, shear stress estimates and mobility of the range of sediments is recommended
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Differences between experiments and field observations:
•Vegetation!•Extended low flows•Grain size distribution and suspended load
Experimental Limitations:•Scaling Interpretation•Single channel geometry and channel width to culvert width ratio.•Single entrance condition
Site specific analysis of flow, shear stress estimates and mobility of the range of sediments is recommended
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Novel boundary roughness retrofits:
Will furry rope work in the Midwest?
Tonkin, Jonathan D; David, Bruno O.; Hokianga, Hayden; Taipeti, Kris (2014): Rope beats slope: Mussel ropes allow fish and crustacean passage through long, steep culverts. figshare.
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Hydrodynamics of Furry RopeD
epth
Velocity
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Hydrodynamics of Furry RopeD
epth
Velocity
TKE (cm2/s2)
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Hydrodynamics of Furry Rope
Spacing: <15 cm allows for interaction of low flow areas between ropes
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Hydrodynamics of Furry Rope
Spacing: <15 cm allows for interaction of low flow areas between ropes
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Field Investigations
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Silver Creek Mid-culvert Cross Section
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0 1 2 3 4D
epth
(m)
Location (m)
no rope
rope
rope center
0
0.1
0.2
0.3
0.4
0.5
0.6
0 1 2 3 4
Velo
city
Mag
nitu
de (m
/s)
Location (m)
no rope
rope
rope center
Water Depth(flow is out of page)
Velocity MagnitudeFrom ADV
10/22/2015
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Key Observations• Ice
– Ice seemed to form on ropes first• Sediment
– Sediment deposition under ropes• Debris
– Collected some debris, mostly small, will continue to monitor
• Installation– Attached end or free? Installation in deep
water?• Fish use – To the Lab!
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Culvert Design for Aquatic
Connectivity in Minnesota
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Questions?Contact: [email protected]:
Sara MielkeBritney Mosey Jay HatchMatt HernickNumerous Undergraduate Researchers, SAFLSAFL technical staff
Advisory: MnDOT TAP members – Petra DeWall, Shirlee Sherkow, Brian Walter, Nicole Danielson-Bartelt, Jon Bergstrand, Peter Leete, Joe Nietfeld, Scott MorganBob Gubernick, Kelly Hughes