BIMLevel 2 BIM - RPW
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Advanced Hydrotechnical Considerations
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Overview
•Hydrotechnical Review
•Pier Scour Inspection
•RPW Inspection
•Case Study
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•Area•Shape•Slope•Channel•Storage•Density•Vegetation•Soil Type•Initial Moisture
Hydrotechnical Review
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Hydrotechnical Design Guidelines :
Channel Capacity
Historic Highwater Data•Drift, debris•Scars, erosion•Locals, photos
Runoff Potential
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Thalweg
Water Surface
Y
AV = Q
QA
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Bridge
Culvert
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Flow Parallel to Pier
Flow on Skew to Pier
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Dam
Aggradation
Degradation
QsD50 ~ QS
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1
2
3a
3b
4
5
Relative StabilityHigh Low
Rel
ativ
e S
tab
ility
Hig
hL
ow
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Pier Scour Survey
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0
5
10
15
20
25
30
35
40
1959
1961
1963
1965
1967
1969
1971
1973
1975
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
2003
2005
2007
No
. S
cou
r S
urv
eys
Profile
Contour
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Priority Initial Latest
1 60 38
2 68 70
3 41 65
Number Of Structures
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EmbankmentSpurs
Guidebank
Dyke
RPW Inspection
Spurs
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Typical Rock Riprap Section
2
1
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Priority Description No. Sites
1 Multi-channel Gravel Bed 93
2 Active Gravel Bed 48
3 Active Meander 66
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1951
1972
1989
2008
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Case Study
BF78104
McLeod River near Peers
Hwy 32
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…Questions?