BIMLevel 2 BIM - RPW

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Advanced Hydrotechnical Considerations

BIMLevel 2 BIM - RPW

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Overview

•Hydrotechnical Review

•Pier Scour Inspection

•RPW Inspection

•Case Study

BIMLevel 2 BIM - RPW

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•Area•Shape•Slope•Channel•Storage•Density•Vegetation•Soil Type•Initial Moisture

Hydrotechnical Review

BIMLevel 2 BIM - RPW

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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?