should fish passage through culverts be a concern for midwest engineers and planners: determining...
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Should Fish Passage through Culverts be a Concern for Midwest Engineers and
Planners: Determining the Percentage of Culverts that act as Barriers to Fish Passage
in NE Ohio
Bishes RayamajhiPacific Northwest National Laboratory, Youngstown
State University
Coauthors: Vasconcelos JG, Devkota JP, Baral D, Tritico HM
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Goals of the Project
• Evaluate fish migration barrier culverts in NE Ohio.
• Reasons for the culverts to act as barriers.• Results comparison between two fish passage
modeling software; FishXing and HEC-RAS.
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Resources Used
• Culvert specification data from ODOT;• Discharge predictions from USGS Streamstats;• USGS seamless data inventory;• ArcGIS;• Fish data: Ohio Gap analysis and FishXing.
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FishXing
• A computer model developed by the US Forest Service,
• Compares the fish performance with the culvert hydraulics– Culvert water velocity with fish swimming speed– Culvert water depth with fish depth
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HEC-RAS
• One-dimensional flow simulation software developed by USACE.
• An additional code developed by Vasconcelos JG. was used for fish passage simulation.
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Culvert Data
• From 5,837 culverts in ODOT database 169 culverts having sufficient information of material, slope, diameter, and shape.
• At present 55 culverts were analyzed using FishXing.
• One average culvert was modeled in HEC-RAS as well as FishXing.
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USGS Flow Predictions
• PK2 – Peak two year flood;• FPS 25 – 25th percentile flow;• Maximum and minimum average monthly
discharge for a year.
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USGS Seamless Data Warehouse
• Digital Elevation Model (DEM)• 1/9 arc sec (3 meter) resolution
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Fish Data
• From Ohio Gap Analysis, only the fish with known swimming speed were taken.
• FishXing fish data was used for obtaining the swimming speed.
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Fish UsedFish Name Fish
Length (ft)Fish Height
(ft)Fish Velocity
(ft/s)Central stoneroller 0.2 0.05 1.31
White sucker 1.25 0.22 2.52
Northern pike 2.08 0.3 1.58
Greenside darter 0.17 0.02 1.02
Pumpkinseed 0.42 0.18 1.22
Longear sunfish 0.29 0.11 1.28
Smallmouth bass 1.13 0.3 2.68
Largemouth bass 1.38 0.39 3.44
Golden shiner 0.46 0.14 2.43
Blacknose dace 0.14 0.02 1.26
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FishXing Results
33%
67%
Partial PassageTotal Barrier
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FishXing Results
Qmin Qmax FPS 25 PK20
5
10
15
20
25
30
Greenside DarterGolden ShinerBlacknose dace
Flow conditions
Perc
enta
ge P
asse
d
Monthly avg. Monthly avg.
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Culvert Locations
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Average Culvert• Seven fish species in its watershed;• Circular plain concrete reinforced culvert; • Diameter = 36 inches, Length = 100 ft, Slope = 1 in 100. • Flow predictions; Qmin = 0.03 cfs, Qmax = 0.51 cfs, FPS 25 = 0.02 cfs, PK2 = 38.4 cfs.
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FishXing Result for Average Culvert
Fish Species Qmin Qmax FPS25 PK2
White Sucker d d,v d v
Central Stoneroller d,v v v l,d
Pumpkinseed d,v d,v d v
Longear sunfish d,v v d,v,l v
Smallmouth bass d d,v d v
Largemouth bass d d d v
Blacknose dace v v l v
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HEC-RAS Result for Average Culvert
Central st
onerolle
r
White
suck
er
Pumpkinseed
Longear s
unfish
Smallmouth bass
Largemouth bass
Blacknose dace
0102030405060708090
100
No barrierDepth barrierVelocity barrier
Fish Species
Perc
ent ti
mes
(%)
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Differences between FishXing and HEC-RAS
• Every month modeled• Velocity distribution modeled for reduced
velocity zones (Vasconcelos et al., 2011)• Multiple cross-sections upstream and
downstream
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Conclusion
• The most common cause culverts acted as barriers in NE Ohio was excessive velocity
• Results obtained with the HEC-RAS tool showed moderately better passage conditions compared to FishXing.
• Results will be helpful for better culvert designs and increased fish passage.