EFFECTS OF ARUNDO DONAX ON RIVER HYDRAULICS, SEDIMENT TRANSPORT, AND GEOMORPHOLOGY, SANTA MARGARITA RIVER, CALIFORNIA

Size: px
Start display at page:

Download "EFFECTS OF ARUNDO DONAX ON RIVER HYDRAULICS, SEDIMENT TRANSPORT, AND GEOMORPHOLOGY, SANTA MARGARITA RIVER, CALIFORNIA"

Transcription

1 EFFECTS OF ARUNDO DONAX ON RIVER HYDRAULICS, SEDIMENT TRANSPORT, AND GEOMORPHOLOGY, SANTA MARGARITA RIVER, CALIFORNIA René Leclerc Geomorphologist Robert C. MacArthur, Ph.D., P.E. Principal Headwaters to Ocean (H2O) Conference Catamaran Resort San Diego, California May 26, 2011

2 Acknowledgments California Invasive Plant Council Jason Giessow, Jason Casanova, Doug Johnson U.S. Marine Corps Base Camp Pendleton Deborah Bieber, Ben Lardiere State Water Resources Control Board

3 Presentation Outline Study Objectives Arundo Donax Description Arundo Effects on Rivers Santa Margarita River Case Study Background River Hydraulics Investigation Application to other Rivers (Source: Cal-IPC 2011) Conclusions (Source: Cal-IPC 2011)

4 Study Objectives Conduct a literature review to develop an understanding of typical river response to infestation by Arundo. Summarize the geomorphic environment of the Santa Margarita River study reach. Prepare a case study of the effects of Arundo infestation on the hydraulic characteristics, geomorphology, and sediment transport capacity of the Santa Margarita River. Develop a simplified scoring system to evaluate the potential response of other southern California Rivers to their Arundo infestations.

5 Arundo in the River Environment Arundo Donax (Giant Reed) member of the grass family, native to parts of Asia and Europe Found on bare, moist substrate where water is plentiful, including the bed, banks, unvegetated bars and islands, and the floodplains of rivers Often out-competes native plants due to rapid growth rates (up to 10 cm per day in early stages) Mature stands reach heights of 6 m to 10 m (Source: Cal-IPC 2011)

6 Arundo Extent in Coastal Southern California Santa Margarita River (Source: Cal-IPC 2011)

7 Arundo Effects on Rivers Types of Impacts to River Morphology Findings from a literature review of arundo effects on large, low-gradient, braided rivers in the American Southwest: Simplification of channel form Increased lateral stability Floodplain accretion Long-term channel narrowing Bed aggradation and shallower channels in some cases, channel incision or deepening in others Important to recognize that other cause & effect processes occur concurrently

8 Arundo Effects on Rivers Some Types of Impacts to River Morphology

9 Presentation Outline Study Objectives Arundo Donax Description Arundo Effects on Rivers Santa Margarita River Case Study Background River Hydraulics Investigation Application to other Rivers (Source: Cal-IPC 2011) Conclusions (Source: Cal-IPC 2011)

10 Santa Margarita River Case Study è740 square miles in size èdrains into the Pacific Ocean near Oceanside èstudy reach located within Camp Pendleton Santa Margarita Watershed

11 Santa Margarita River Case Study Large sand-bed river in coastal Southern California Upstream urbanization altered flow characteristics over time, increasing available water and spread of Arundo Flood of record in 1993 near peak of Arundo infestation caused $100M+ in damages at Marine Corps Base Camp Pendleton Flood Magnitudes Flood damage response included levee improvements at Camp Pendleton and a widespread Arundo eradication program

12 Santa Margarita River Case Study Flow Duration Curves by Decade at Ysidora Gage Urbanization has increased flow volume and duration over time More Water = More Vegetation over time

13 Santa Margarita River Case Study Maximum extent of Arundo cover was in 1990s (Source: Cal-IPC 2008)

14 Santa Margarita River Case Study The 1993 Flood of Record

15 Santa Margarita River Case Study 1993 Flood Airfield levee breaches Note several inches of sand deposited throughout the base

16 Santa Margarita River Case Study After the 1993 Flood Arundo Eradication Program ( ) 570 acres of Arundo are mechanically removed and herbicide is applied to ensure no re-growth. NHC assists with hydraulic modeling & design efforts for a new bridge and flood protection levee at the air station. NHC develops a calibrated HEC-RAS model which includes widespread Arundo coverage present in the late 1990s. (Source: Bieber 2004)

17 Santa Margarita River Hydraulics Investigation What is HEC-RAS? HEC-RAS is a 1-D numerical model that simulates hydraulic conditions in open channels. Developed by the Army Corps of Engineers and a global standard for hydraulic modeling of river systems.

18 Presentation Outline Study Objectives Arundo Donax Description Arundo Effects on Rivers Santa Margarita River Case Study Background River Hydraulics Investigation Application to other Rivers (Source: Cal-IPC 2011) Conclusions (Source: Cal-IPC 2011)

19 Santa Margarita River Hydraulics Investigation Study Reach and Geomorphic Sub-reaches

20 Santa Margarita River Hydraulics Investigation Geomorphic Sub-reaches

21 Santa Margarita River Hydraulics Investigation HEC-RAS Model Scenarios

22 Santa Margarita River Hydraulics Investigation Manning s n Roughness Coefficient of Arundo Manning s n a coefficient used to represent flow resistance due to roughness effects in open channel flow. The higher the Manning s n coefficient, the rougher the surface. Putting it into perspective: typical gravel bed river dense willow on floodplain Initial estimates of Arundo Manning s n by NHC in 1998, based on 1993 & 1998 high water marks Arundo is !!

23 Santa Margarita River Case Study Typical Mature Arundo Stand on Santa Margarita River Floodplain in 1998

24 Santa Margarita River Hydraulics Investigation Manning s n Values for Floodplain Scenarios Scenario 1 Total Arundo Infestation Bottom 5 ft treated as obstruction due to dense thatch Area above 5 ft assigned Manning s n of 0.15 Scenario 2 Native Vegetation Manning s n = 0.10 Scenario 3 Bare Floodplain Manning s n = 0.05 Scenario Floodplain Manning s n = variable, depending on vegetation type

25 Santa Margarita River Hydraulics Investigation Water Surface Profile Results 100 yr Flow (64,000 cfs) Arundo produces a water surface elevation as much as 5 feet higher than the native vegetation scenario

26 Santa Margarita River Hydraulics Investigation Channel Flow Depth Profile 100 yr Flow (64,000 cfs)

27 Santa Margarita River Hydraulics Investigation Channel Velocity Profile 100 yr Flow (64,000 cfs)

28 Santa Margarita River Hydraulics Investigation Overbank Velocity Profile 100 yr Flow (64,000 cfs)

29 Santa Margarita River Hydraulics Investigation Differences in Hydraulic Characteristics between Scenarios

30 Santa Margarita River Hydraulics Investigation Arundo Effects on Sediment Transport Capacity (Reconnaissance-level Stream Power Approach) Stream Power: Ω = tvw t = average bed shear stress v = average sectional velocity w = channel width

31 Santa Margarita River Hydraulics Investigation Summary of Relative Differences in Stream Power by Scenario S1 = Arundo infestation S2 = Native vegetation S3 = Bare floodplain S4 = 1997 Floodplain

32 Santa Margarita River Hydraulics Investigation Arundo Effects on Sediment Transport Capacity (Reconnaissance-level Stream Power Approach) Floodplain Lower Transport Sediment deposition Vertical accretion + Channel Greater Transport Bed Scour Potential Net Effect = Short Term Adjustment Period Vertical floodplain accretion offset by some some channel bed scour Long Term Establish new equilibrium state with altered geomorphology

33 Santa Margarita River Hydraulics Investigation Summary of Key Findings Hydraulic modeling of different floodplain vegetation scenarios suggests: Arundo infestation can raise 100-year water levels by several feet Arundo infestation significantly increases the portion of flow discharge carried by the channel. Subreaches with wider floodplain exhibit greater response to Arundo infestation than narrower ones (due to greater Arundo coverage) Arundo coverage somewhere over 30% generally results in significant adjustments to the water surface profile relative to the native vegetation condition. HEC-RAS modeling results support and demonstrate the observed geomorphic response of channel narrowing and simplification of the river cross-section.

34 Presentation Outline Study Objectives Arundo Donax Description Arundo Effects on Rivers Santa Margarita River Case Study Background River Hydraulics Investigation Application to other Rivers (Source: Cal-IPC 2011) Conclusions (Source: Cal-IPC 2011)

35 Santa Margarita River Hydraulics Investigation Arundo Impact Scoring System Qualitative Method to determine potential Impact of Arundo on southern California coastal rivers using key findings from the hydraulic study.

36 Santa Margarita River Hydraulics Investigation Arundo Impact Scoring System: Application to other Rivers Santa Margarita River Santa Ana River San Luis Rey

37 Presentation Outline Study Objectives Arundo Donax Description Arundo Effects on Rivers Santa Margarita River Case Study Background River Hydraulics Investigation Application to other Rivers (Source: Cal-IPC 2011) Conclusions (Source: Cal-IPC 2011)

38 Conclusions Dense Arundo stands can dramatically increase channel roughness and flood risk if present in sufficient quantity Arundo tends to transform historically braided rivers into narrower, single-thread channels with root-stabilized banks More information and NHC s full report can be found at:

Stream Rehabilitation Concepts, Guidelines and Examples. Objectives. Pierre Y. Julien. Three Laws of Stream Restoration

Stream Rehabilitation Concepts, Guidelines and Examples. Objectives. Pierre Y. Julien. Three Laws of Stream Restoration Stream Rehabilitation Concepts, Guidelines and Examples Pierre Y. Julien Wuhan 2005 Objectives Part I - Stream restoration and rehabilitation: 1. Present and discuss important concepts, laws, criteria

More information

ROSE CREEK WATERSHED HYDROLOGIC, HYDRAULIC, SEDIMENT TRANSPORT, AND GEOMORPHIC ANALYSES TASK 1 EXISTING DATA AND INFORMATION SUMMARY REPORT BACKGROUND

ROSE CREEK WATERSHED HYDROLOGIC, HYDRAULIC, SEDIMENT TRANSPORT, AND GEOMORPHIC ANALYSES TASK 1 EXISTING DATA AND INFORMATION SUMMARY REPORT BACKGROUND ROSE CREEK WATERSHED HYDROLOGIC, HYDRAULIC, SEDIMENT TRANSPORT, AND GEOMORPHIC ANALYSES TASK 1 EXISTING DATA AND INFORMATION SUMMARY REPORT BACKGROUND The Rose Creek Watershed (RCW) consists of three planning

More information

Topic 8: Open Channel Flow

Topic 8: Open Channel Flow 3.1 Course Number: CE 365K Course Title: Hydraulic Engineering Design Course Instructor: R.J. Charbeneau Subject: Open Channel Hydraulics Topics Covered: 8. Open Channel Flow and Manning Equation 9. Energy,

More information

Prattsville Berm Removal Project. 1.0 Project Location

Prattsville Berm Removal Project. 1.0 Project Location Prattsville Berm Removal Project 1.0 Project Location The project site is located between the New York State Route 23 Bridge over the Schoharie Creek and the Schoharie Reservoir. The restoration plan encompassed

More information

CITY UTILITIES DESIGN STANDARDS MANUAL

CITY UTILITIES DESIGN STANDARDS MANUAL CITY UTILITIES DESIGN STANDARDS MANUAL Book 2 (SW) SW9 June 2015 SW9.01 Purpose This Chapter provides information for the design of open channels for the conveyance of stormwater in the City of Fort Wayne.

More information

Bruce Orr and Zooey Diggory S T I L L W A T E R S C I E N C E S. Tom Dudley U C S A N T A B A R B A R A

Bruce Orr and Zooey Diggory S T I L L W A T E R S C I E N C E S. Tom Dudley U C S A N T A B A R B A R A A case study from the lower Santa Clara River, CA: Strategic planning for control of Arundo donax and restoration of riparian vegetation in semi-arid landscapes Bruce Orr and Zooey Diggory S T I L L W

More information

Floodplain Connectivity in Restoration Design

Floodplain Connectivity in Restoration Design Floodplain Connectivity in Restoration Design 2015 Symposium on Restoration in a Contaminated Environment: Lessons Learned and Challenges in Moving Forward Part II April 2015 Karin Boyd Applied Geomorphology,

More information

8.0 COST TO BENEFIT ANALYSIS

8.0 COST TO BENEFIT ANALYSIS 8.0 COST TO BENEFIT ANALYSIS A cost-to-benefit analysis (CBA) is often used to evaluate the desirability of a given action or intervention. CBAs use a monetary valuation of costs and benefits, which are

More information

RESTORATION AND ENHANCEMENT OF SOUTHERN CALIFORNIA LAGOONS

RESTORATION AND ENHANCEMENT OF SOUTHERN CALIFORNIA LAGOONS RESTORATION AND ENHANCEMENT OF SOUTHERN CALIFORNIA LAGOONS by Hany Elwany, Ph.D. Scripps Institution of Oceanography Headwaters to Oceans Conference 25 October 2003 CE Ref #03-22 San Diego County Lagoons

More information

Catchment Scale Processes and River Restoration. Dr Jenny Mant Jenny@therrc.co.uk. The River Restoration Centre therrc.co.uk

Catchment Scale Processes and River Restoration. Dr Jenny Mant Jenny@therrc.co.uk. The River Restoration Centre therrc.co.uk Catchment Scale Processes and River Restoration Dr Jenny Mant Jenny@therrc.co.uk The River Restoration Centre therrc.co.uk 3 Main Catchment Elements Hydrology Energy associated with the flow of water affects

More information

Travel Time. Computation of travel time and time of concentration. Factors affecting time of concentration. Surface roughness

Travel Time. Computation of travel time and time of concentration. Factors affecting time of concentration. Surface roughness 3 Chapter 3 of Concentration and Travel Time Time of Concentration and Travel Time Travel time ( T t ) is the time it takes water to travel from one location to another in a watershed. T t is a component

More information

CHAPTER 9 CHANNELS APPENDIX A. Hydraulic Design Equations for Open Channel Flow

CHAPTER 9 CHANNELS APPENDIX A. Hydraulic Design Equations for Open Channel Flow CHAPTER 9 CHANNELS APPENDIX A Hydraulic Design Equations for Open Channel Flow SEPTEMBER 2009 CHAPTER 9 APPENDIX A Hydraulic Design Equations for Open Channel Flow Introduction The Equations presented

More information

Appendix 4-C. Open Channel Theory

Appendix 4-C. Open Channel Theory 4-C-1 Appendix 4-C Open Channel Theory 4-C-2 Appendix 4.C - Table of Contents 4.C.1 Open Channel Flow Theory 4-C-3 4.C.2 Concepts 4-C-3 4.C.2.1 Specific Energy 4-C-3 4.C.2.2 Velocity Distribution Coefficient

More information

Neversink River East Branch

Neversink River East Branch Neversink River East Branch Management Unit 10 Summary of Post-Flood Recommendations Intervention Level Full restoration of the stream reach including the eroding bank site between Station 38380 and Station

More information

HYDROLOGIC/HYDRAULIC MODELING OF WESTMINSTER WATERSHED ORANGE COUNTY, CALIFORNIA

HYDROLOGIC/HYDRAULIC MODELING OF WESTMINSTER WATERSHED ORANGE COUNTY, CALIFORNIA HYDROLOGIC/HYDRAULIC MODELING OF WESTMINSTER WATERSHED ORANGE COUNTY, CALIFORNIA James Chieh, Ph.D., P.E., Senior Hydraulic Engineer, USACE, Los Angeles, California, Shih.H.Chieh@usace.army.mil; Jay Pak,

More information

GLOSSARY OF TERMS CHAPTER 11 WORD DEFINITION SOURCE. Leopold

GLOSSARY OF TERMS CHAPTER 11 WORD DEFINITION SOURCE. Leopold CHAPTER 11 GLOSSARY OF TERMS Active Channel The channel that contains the discharge Leopold where channel maintenance is most effective, sediment are actively transported and deposited, and that are capable

More information

ECONOMIC ANALYSIS FLOOD DAMAGE REDUCTION. Lower Carmel River Floodplain Restoration and Enhancement Project

ECONOMIC ANALYSIS FLOOD DAMAGE REDUCTION. Lower Carmel River Floodplain Restoration and Enhancement Project ECONOMIC ANALYSIS FLOOD DAMAGE REDUCTION Lower Carmel River Floodplain Restoration and Enhancement Project I. Description of the Project and its Relationship to Other Projects in the Proposal The Lower

More information

CHAPTER 5 OPEN CHANNEL HYDROLOGY

CHAPTER 5 OPEN CHANNEL HYDROLOGY 5.4 Uniform Flow Calculations 5.4.1 Design Charts CHAPTER 5 OPEN CHANNEL HYDROLOGY Following is a discussion of the equations that can be used for the design and analysis of open channel flow. The Federal

More information

SIMULATION OF SEDIMENT TRANSPORT AND CHANNEL MORPHOLOGY CHANGE IN LARGE RIVER SYSTEMS. Stephen H. Scott 1 and Yafei Jia 2

SIMULATION OF SEDIMENT TRANSPORT AND CHANNEL MORPHOLOGY CHANGE IN LARGE RIVER SYSTEMS. Stephen H. Scott 1 and Yafei Jia 2 US-CHINA WORKSHOP ON ADVANCED COMPUTATIONAL MODELLING IN HYDROSCIENCE & ENGINEERING September 19-21, Oxford, Mississippi, USA SIMULATION OF SEDIMENT TRANSPORT AND CHANNEL MORPHOLOGY CHANGE IN LARGE RIVER

More information

Prepared By: Tom Parker Geum Environmental Consulting, Inc.

Prepared By: Tom Parker Geum Environmental Consulting, Inc. Prepared By: Tom Parker Geum Environmental Consulting, Inc. Topics covered: Definition of riparian and floodplain restoration Floodplain attributes as a basis for developing criteria for restoration designs

More information

Evaluation of Open Channel Flow Equations. Introduction :

Evaluation of Open Channel Flow Equations. Introduction : Evaluation of Open Channel Flow Equations Introduction : Most common hydraulic equations for open channels relate the section averaged mean velocity (V) to hydraulic radius (R) and hydraulic gradient (S).

More information

Environmental Data Management Programs

Environmental Data Management Programs Hydrologic Engineering Centre (HEC) Software CD Collection of programs, developed by the U.S. Army Corps of Engineers Environmental Data Management Programs Name: HEC-DSS Package Purpose: Data Storage

More information

LATEST ENHANCEMENTS TO THE RIVERMorph STREAM RESTORATION SOFTWARE

LATEST ENHANCEMENTS TO THE RIVERMorph STREAM RESTORATION SOFTWARE LATEST ENHANCEMENTS TO THE RIVERMorph STREAM RESTORATION SOFTWARE J. George Athanasakes, PE RIVERMorph, LLC 1901 Nelson Miller Parkway Louisville, KY 40223-2177 233 BIOGRAPHICAL SKETCH J. George Athanasakes,

More information

King County Flood Hazard Management Plan Update Cedar/ Sammamish Rivers. Public Meeting December 5, 2012

King County Flood Hazard Management Plan Update Cedar/ Sammamish Rivers. Public Meeting December 5, 2012 King County Flood Hazard Management Plan Update Cedar/ Sammamish Rivers Public Meeting December 5, 2012 Goals of the Presentation Cedar and Sammamish R. Plan Update Context - Brief summary info about the

More information

2.0 BASIC CONCEPTS OF OPEN CHANNEL FLOW MEASUREMENT

2.0 BASIC CONCEPTS OF OPEN CHANNEL FLOW MEASUREMENT 2.0 BASIC CONCEPTS OF OPEN CHANNEL FLOW MEASUREMENT Open channel flow is defined as flow in any channel where the liquid flows with a free surface. Open channel flow is not under pressure; gravity is the

More information

General Permit for Activities Promoting Waterway - Floodplain Connectivity [working title]

General Permit for Activities Promoting Waterway - Floodplain Connectivity [working title] General Permit for Activities Promoting Waterway - Floodplain Connectivity [working title] Purpose These rules set forth the conditions under which a person may, without an individual removal-fill permit

More information

Rural Flooding: The Potential Role of Forestry

Rural Flooding: The Potential Role of Forestry Rural Flooding: The Potential Role of Forestry Nadeem Shah, Tom Nisbet, & Huw Thomas Centre for Forestry and Climate Change Structure Background Woodland and Flood Alleviation The Theory. Studies on Woodland

More information

Earth Science. River Systems and Landforms GEOGRAPHY 1710. The Hydrologic Cycle. Introduction. Running Water. Chapter 14.

Earth Science. River Systems and Landforms GEOGRAPHY 1710. The Hydrologic Cycle. Introduction. Running Water. Chapter 14. Earth Science GEOGRAPHY 1710 River Systems and Landforms DAVID R. SALLEE Robert W. Christopherson Charlie Thomsen Chapter 14 Introduction Rivers and streams are dynamic systems that continually adjust

More information

Basic Hydrology. Time of Concentration Methodology

Basic Hydrology. Time of Concentration Methodology Basic Hydrology Time of Concentration Methodology By: Paul Schiariti, P.E., CPESC Mercer County Soil Conservation District What is the Time of Concentration? The time it takes for runoff to travel from

More information

Assessing Rivers for Restoration Purposes. Ann L. Riley Waterways Restoration Institute

Assessing Rivers for Restoration Purposes. Ann L. Riley Waterways Restoration Institute Assessing Rivers for Restoration Purposes Ann L. Riley Waterways Restoration Institute Assessing Rivers for Restoration Purposes Ann L. Riley Waterways Restoration Institute Assessing Rivers for Restoration

More information

Quality Assurance Reviews of Hydraulic Models Developed for the Central Valley Floodplain Evaluation and Delineation Program

Quality Assurance Reviews of Hydraulic Models Developed for the Central Valley Floodplain Evaluation and Delineation Program Quality Assurance Reviews of Hydraulic Models Developed for the Central Valley Floodplain Evaluation and Delineation Program Techniques Applied and Lessons Learned Seth Ahrens, P.E., CFM Selena Forman,

More information

Prioritizing Riparian Restoration at the Watershed, Reach and Site Scales. Richard R. Harris University of California, Berkeley Cooperative Extension

Prioritizing Riparian Restoration at the Watershed, Reach and Site Scales. Richard R. Harris University of California, Berkeley Cooperative Extension Prioritizing Riparian Restoration at the Watershed, Reach and Site Scales Richard R. Harris University of California, Berkeley Cooperative Extension Issues Riparian communities provide multiple benefits

More information

Flood Risk Analysis considering 2 types of uncertainty

Flood Risk Analysis considering 2 types of uncertainty US Army Corps of Engineers Institute for Water Resources Hydrologic Engineering Center Flood Risk Analysis considering 2 types of uncertainty Beth Faber, PhD, PE Hydrologic Engineering Center (HEC) US

More information

Design And Construction Of The South San Diego Bay Western Salt Pond Restoration Project. 2012 Headwaters To Ocean Conference

Design And Construction Of The South San Diego Bay Western Salt Pond Restoration Project. 2012 Headwaters To Ocean Conference Design And Construction Of The South San Diego Bay Western Salt Pond Restoration Project 2012 Headwaters To Ocean Conference David Cannon, M.C.E., P.E. President/Principal Engineer Everest International

More information

Standard Operating Procedures

Standard Operating Procedures HOBO Water Level Logger Standard Operating Procedures Prepared by San Diego Regional Water Quality Control Board Southern California Coastal Water Research Project April 30, 2013 1. Purpose This document

More information

Sediment Supply and the Upland-Stream Connection. Brian Bledsoe Department of Civil and Environmental Engineering Colorado State University

Sediment Supply and the Upland-Stream Connection. Brian Bledsoe Department of Civil and Environmental Engineering Colorado State University Sediment Supply and the Upland-Stream Connection Brian Bledsoe Department of Civil and Environmental Engineering Colorado State University Overview The sediment system (with an eye towards hillslope processes

More information

Risk Analysis, GIS and Arc Schematics: California Delta Levees

Risk Analysis, GIS and Arc Schematics: California Delta Levees Page 1 of 7 Author: David T. Hansen Risk Analysis, GIS and Arc Schematics: California Delta Levees Presented by David T. Hansen at the ESRI User Conference, 2008, San Diego California, August 6, 2008 Abstract

More information

FLOOD PROTECTION BENEFITS

FLOOD PROTECTION BENEFITS IV. (340 points) Flood Protection Benefits A. Existing and potential urban development in the floodplain (50) 1. Describe the existing and potential urban development at the site and the nature of the

More information

Course Plan Day 1: Introduction and Overview Hydrology & Fluvial Geomorphology Day 2: Fieldwork on the Braid Burn Alan Jones

Course Plan Day 1: Introduction and Overview Hydrology & Fluvial Geomorphology Day 2: Fieldwork on the Braid Burn Alan Jones Course Plan Day 1: Introduction and Overview Hydrology & Fluvial Geomorphology Alan Jones E:mail: Alan.Jones@ed.ac.uk Water cycle Globally & Locally River shapes and forms River behaviour Closer look at

More information

APPENDIX B DESIGN GUIDELINES FOR APPROVED TREATMENT METHODS

APPENDIX B DESIGN GUIDELINES FOR APPROVED TREATMENT METHODS APPENDIX B DESIGN GUIDELINES FOR APPROVED TREATMENT METHODS PLANTER BOXES 1. Determine the impervious area contributing flow to the planter box (see Chapter 4.2). 2. Assumption: Typical soil infiltration

More information

Case Studies Bridge Scour Inspection and Repair Edward P. Foltyn, P.E. Senior Hydraulic Engineer ODOT Bridge Unit

Case Studies Bridge Scour Inspection and Repair Edward P. Foltyn, P.E. Senior Hydraulic Engineer ODOT Bridge Unit Case Studies Bridge Scour Inspection and Repair Edward P. Foltyn, P.E. Senior Hydraulic Engineer ODOT Bridge Unit 2013 PNW Bridge Inspectors Conference April 2013 REFERENCES Stream Stability at Highway

More information

BRIDGE SCOUR INVESTIGATION: DEVELOPING A SCREENING AND HYDRAULIC VULNERABILITY RATING SYSTEM FOR BRIDGES B.HERON 1 & C.BOWE 2

BRIDGE SCOUR INVESTIGATION: DEVELOPING A SCREENING AND HYDRAULIC VULNERABILITY RATING SYSTEM FOR BRIDGES B.HERON 1 & C.BOWE 2 BRIDGE SCOUR INVESTIGATION: DEVELOPING A SCREENING AND HYDRAULIC VULNERABILITY RATING SYSTEM FOR BRIDGES B.HERON 1 & C.BOWE 2 1 O Connor Sutton Cronin Consulting Engineers, Dublin, Ireland 2 Iarnród Éireann,

More information

Year 2 7-15-10 Post Restoration Monitoring Summary Rock Creek Project Monitoring and Analysis conducted by Bio-Surveys,LLC. Contact: strask@casco.

Year 2 7-15-10 Post Restoration Monitoring Summary Rock Creek Project Monitoring and Analysis conducted by Bio-Surveys,LLC. Contact: strask@casco. Year 2 7-15-10 Post Restoration Monitoring Summary Rock Creek Project Monitoring and Analysis conducted by Bio-Surveys,LLC. Contact: strask@casco.net Project Sponsors include: The City of Corvallis Oregon

More information

The Coast of Crystal Cove Orange County, California

The Coast of Crystal Cove Orange County, California The Coast of Crystal Cove Orange County, California by Hany Elwany, Ph.D. Scripps Institution of Oceanography Megan Hamilton, M.Sc. Coastal Environments Robert Robinson Dept. of Parks & Recreation Headwaters

More information

STATUS REPORT FOR THE SUBMERGED REEF BALL TM ARTIFICIAL REEF SUBMERGED BREAKWATER BEACH STABILIZATION PROJECT FOR THE GRAND CAYMAN MARRIOTT HOTEL

STATUS REPORT FOR THE SUBMERGED REEF BALL TM ARTIFICIAL REEF SUBMERGED BREAKWATER BEACH STABILIZATION PROJECT FOR THE GRAND CAYMAN MARRIOTT HOTEL STATUS REPORT FOR THE SUBMERGED REEF BALL TM ARTIFICIAL REEF SUBMERGED BREAKWATER BEACH STABILIZATION PROJECT FOR THE GRAND CAYMAN MARRIOTT HOTEL performed by Lee E. Harris, Ph.D., P.E. Consulting Coastal

More information

Flood Hazard Area Technical Manual Section 8 Bank Stabilization and Stream Restoration

Flood Hazard Area Technical Manual Section 8 Bank Stabilization and Stream Restoration Flood Hazard Area Technical Manual Section 8 Bank Stabilization and Stream Restoration Prepared by: New Jersey Section American Water Resources Association Stream Restoration Committee FHA Subcommittee

More information

Lecture 8: Soils and Percolation

Lecture 8: Soils and Percolation Lecture 8: Soils and Percolation Key Questions 1. How does grain size control percolation? 2. What is hydraulic conductivity? 3. How do soils affect runoff? 4. How does rain on snow affect runoff? New

More information

AN INITIATIVE TO IMPROVE

AN INITIATIVE TO IMPROVE L OW E R C A R M E L R I V E R A N D L AG O O N F L O O D P L A I N R E S TO R AT I O N A N D E N H A N C E M E N T P R O J E C T AN INITIATIVE TO IMPROVE FLOOD PROTECTION RESTORE AND PROTECT RIPARIAN

More information

Chapter 9. Steady Flow in Open channels

Chapter 9. Steady Flow in Open channels Chapter 9 Steady Flow in Open channels Objectives Be able to define uniform open channel flow Solve uniform open channel flow using the Manning Equation 9.1 Uniform Flow in Open Channel Open-channel flows

More information

FLOODPLAIN DELINEATION IN MUGLA-DALAMAN PLAIN USING GIS BASED RIVER ANALYSIS SYSTEM

FLOODPLAIN DELINEATION IN MUGLA-DALAMAN PLAIN USING GIS BASED RIVER ANALYSIS SYSTEM FLOODPLAIN DELINEATION IN MUGLA-DALAMAN PLAIN USING GIS BASED RIVER ANALYSIS SYSTEM Dr. Murat Ali HATİPOĞLU Fatih KESKİN Kemal SEYREK State Hydraulics Works (DSI), Investigation and Planning Department

More information

RIVER MORPHOLOGY AND CHANNEL PROCESSES. Iware Matsuda College of Economics, Kanto Gakuin University, Yokohama, Japan

RIVER MORPHOLOGY AND CHANNEL PROCESSES. Iware Matsuda College of Economics, Kanto Gakuin University, Yokohama, Japan RIVER MORPHOLOGY AND CHANNEL PROCESSES Iware Matsuda College of Economics, Kanto Gakuin University, Yokohama, Japan Keywords: Channel processes, river morphology, drainage basin, river system, stream order,

More information

Basic Principles of Channel Design

Basic Principles of Channel Design United States Department of Agriculture Natural Resources Conservation Service Stream Restoration Design Chapter 7 Basic Principles of Channel Design Issued August 2007 Cover photo: Where modification

More information

A Stream Restoration Case Study in the California Central Coast

A Stream Restoration Case Study in the California Central Coast International Erosion Control Association Annual Conference 2009, Reno, Nevada Case Study Technical Presentation A Stream Restoration Case Study in the California Central Coast Justin S. Rogers, P.E.,

More information

Chapter 7 Ditches and Channels

Chapter 7 Ditches and Channels Chapter 7 Ditches and Channels TABLE OF CONTENTS CHAPTER 7 - DITCHES AND CHANNELS... 7-1 7.1 Introduction... 7-1 7.2 Design Policy... 7-2 7.2.1 Federal Policy... 7-2 7.2.2 Commonwealth of Virginia Policy...

More information

Rational Method Hydrologic Calculations with Excel. Rational Method Hydrologic Calculations with Excel, Course #508. Presented by:

Rational Method Hydrologic Calculations with Excel. Rational Method Hydrologic Calculations with Excel, Course #508. Presented by: Rational Method Hydrologic Calculations with Excel, Course #508 Presented by: PDH Enterprises, LLC PO Box 942 Morrisville, NC 27560 www.pdhsite.com Calculation of peak storm water runoff rate from a drainage

More information

DANIELS RUN STREAM RESTORATION, FAIRFAX, VIRGINIA: FLOODPLAIN ANALYSIS REPORT

DANIELS RUN STREAM RESTORATION, FAIRFAX, VIRGINIA: FLOODPLAIN ANALYSIS REPORT DANIELS RUN STREAM RESTORATION, FAIRFAX, VIRGINIA: FLOODPLAIN ANALYSIS REPORT By: Conor C. Shea Stream Habitat Assessment and Restoration Program U.S. Fish and Wildlife Service CBFO-S07-01 Prepared in

More information

A new methodological framework for stream hydromorphological assessment, analysis and monitoring (IDRAIM)

A new methodological framework for stream hydromorphological assessment, analysis and monitoring (IDRAIM) ADVANCES IN RIVER SCIENCE CONFERENCE Swansea, 18-21 April 2011 A new methodological framework for stream hydromorphological assessment, analysis and monitoring (IDRAIM) Massimo Rinaldi 1, Nicola Surian

More information

SUSTAINABLE DESIGN FOR THE SOLDIER CREEK LEVEE REPAIR. John Ruhl 1 Seth Laliberty 2 ABSTRACT

SUSTAINABLE DESIGN FOR THE SOLDIER CREEK LEVEE REPAIR. John Ruhl 1 Seth Laliberty 2 ABSTRACT SUSTAINABLE DESIGN FOR THE SOLDIER CREEK LEVEE REPAIR John Ruhl 1 Seth Laliberty 2 ABSTRACT The Soldier Creek Diversion Unit Repair Project represents the latest USACE Kansas City District investment in

More information

What is the most obvious difference between pipe flow and open channel flow????????????? (in terms of flow conditions and energy situation)

What is the most obvious difference between pipe flow and open channel flow????????????? (in terms of flow conditions and energy situation) OPEN CHANNEL FLOW 1 3 Question What is the most obvious difference between pipe flow and open channel flow????????????? (in terms of flow conditions and energy situation) Typical open channel shapes Figure

More information

The Hydrologic Engineering Center Training Course on

The Hydrologic Engineering Center Training Course on The Hydrologic Engineering Center Training Course on SEDIMENT TRANSPORT ANALYSIS WITH HEC-RAS Davis, California Course Objectives This course is intended to prepare engineers to perform studies using various

More information

UNION COUNTY, FLORIDA AND INCORPORATED AREAS

UNION COUNTY, FLORIDA AND INCORPORATED AREAS UNION COUNTY, FLORIDA AND INCORPORATED AREAS COMMUNITY NAME COMMUNITY NUMBER LAKE BUTLER, CITY OF 120595 RAIFORD, TOWN OF 120593 UNION COUNTY 120422 (UNINCORPORATED AREAS) WORTHINGTON SPRINGS, CITY OF

More information

The Basics of Chapter 105 Waterways and Wetlands Permitting in PA

The Basics of Chapter 105 Waterways and Wetlands Permitting in PA The Basics of Chapter 105 Waterways and Wetlands Permitting in PA April 17, 2013 Goal To develop a basic understanding of PA Department of Environmental Protection (DEP) and US Army Corps of Engineers

More information

Los Angeles District. (CA-46), Calvert (CA-44), Baca (CA-43), Sanchez (CA-47), Sen. Feinstein, Sen. Boxer Project Manager: Tom Bucklew

Los Angeles District. (CA-46), Calvert (CA-44), Baca (CA-43), Sanchez (CA-47), Sen. Feinstein, Sen. Boxer Project Manager: Tom Bucklew Santa Ana Mainstem Major Features FY-11 Los Angeles District Project Management Division Appropriation/Phase: Construction General Business Line: Flood Risk Management Local Sponsors: San Bernardino, Riverside

More information

HCP Team Meeting. November 18, 2015. icfi.com

HCP Team Meeting. November 18, 2015. icfi.com HCP Team Meeting November 18, 2015 icfi.com 1 Welcome and Introductions Where are we in the HCP process Hydrology modeling update Native fish survey Fish translocation Finalize covered activities Next

More information

5.0 OVERVIEW OF FLOOD DAMAGE REDUCTION MEASURES

5.0 OVERVIEW OF FLOOD DAMAGE REDUCTION MEASURES 5.0 OVERVIEW OF FLOOD DAMAGE REDUCTION MEASURES Flood damage reduction consists of two basic techniques structural and non-structural. Structural methods modify the flood and take the flood away from people

More information

Using Site Design Techniques to Meet Development Standards for Stormwater Quality

Using Site Design Techniques to Meet Development Standards for Stormwater Quality Using Site Design Techniques to Meet Development Standards for Stormwater Quality A Companion Document to Start at the Source May 2003 Bay Area Stormwater Management Agencies Association Bay Area Stormwater

More information

M6a: Open Channel Flow (Manning s Equation, Partially Flowing Pipes, and Specific Energy)

M6a: Open Channel Flow (Manning s Equation, Partially Flowing Pipes, and Specific Energy) M6a: Open Channel Flow (, Partially Flowing Pipes, and Specific Energy) Steady Non-Uniform Flow in an Open Channel Robert Pitt University of Alabama and Shirley Clark Penn State - Harrisburg Continuity

More information

COMPLIANCE REPORT MUDDY HOLLOW CULVERT REMOVAL FILE NUMBER 25358N

COMPLIANCE REPORT MUDDY HOLLOW CULVERT REMOVAL FILE NUMBER 25358N COMPLIANCE REPORT MUDDY HOLLOW CULVERT REMOVAL FILE NUMBER 25358N Submitted by the National Park Service Point Reyes National Seashore Point Reyes Station, California, 94956 Project Description: Muddy

More information

Appendix F Benefit-Cost Analysis of Flood Protection Measures

Appendix F Benefit-Cost Analysis of Flood Protection Measures Appendix F Benefit-Cost Analysis of Flood Protection Measures Acronyms used in Appendix F: AA B AA C AA D BC BFE EAD FEMA NED O&M PV RED USACE Average Annual Benefits Average Annual Cost Average Annual

More information

Coastal and Hydraulics Laboratory

Coastal and Hydraulics Laboratory ERDC/CHL TR-01-28 Coastal and Hydraulics Laboratory Hydraulic Design of Stream Restoration Projects Ronald R. Copeland, Dinah N. McComas, Colin R. Thorne, Philip J. Soar, Meg M. Jonas, and Jon B. Fripp

More information

Background Why Evaluate the Physical Characteristics of a Stream? Pebble Count Method

Background Why Evaluate the Physical Characteristics of a Stream? Pebble Count Method Background Why Evaluate the Physical Characteristics of a Stream? A stream is the carpenter of its own edifice Stream channels and floodplains are constantly adjusting to the amount of water and sediment

More information

Module1: Open Channel Flow. 1 Classification, types and regimes in Open channel flow. 3 Velocity distribution in open channel, Wide-open channel.

Module1: Open Channel Flow. 1 Classification, types and regimes in Open channel flow. 3 Velocity distribution in open channel, Wide-open channel. Module1: Open Channel Flow 1 Classification, types and regimes in Open channel flow. 2 Channel geometry. 3 Velocity distribution in open channel, Wide-open channel. 4 Specific energy and Critical flow.

More information

Quantifying Potential Floodplain Restoration Benefits in the Upper Mississippi River Basin, USA

Quantifying Potential Floodplain Restoration Benefits in the Upper Mississippi River Basin, USA Quantifying Potential Floodplain Restoration Benefits in the Upper Mississippi River Basin, USA Michael Schwar, Ph.D. PE (MARS) Eileen Fretz (American Rivers) Mississippi River Commission/USACE Upper Mississippi

More information

Guo, James C.Y. (2004). Design of Urban Channel Drop Structure, J. of Flood Hazards News, December,

Guo, James C.Y. (2004). Design of Urban Channel Drop Structure, J. of Flood Hazards News, December, Guo, James C.. (004). esign of Urban Channel rop Structure, J. of Flood azards News, ecember, Guo, James C.., (009) Grade Control for Urban Channel esign, submitted to Elsevier Science, J. of ydro-environmental

More information

An Investigation of the Change in Tidal Signal in an Estuary as a Result of Sea Level Rise and Development at Short-Medium Time Scale

An Investigation of the Change in Tidal Signal in an Estuary as a Result of Sea Level Rise and Development at Short-Medium Time Scale Journal of Coastal Research SI 56 641-645 ICS2009 (Proceedings) Portugal ISSN 0749-0258 An Investigation of the Change in Tidal Signal in an Estuary as a Result of Sea Level Rise and Development at Short-Medium

More information

USSD Workshop on Dam Break Analysis Applied to Tailings Dams

USSD Workshop on Dam Break Analysis Applied to Tailings Dams USSD Workshop on Dam Break Analysis Applied to Tailings Dams Antecedents Newtonian / non-newtonian flows Available models that allow the simulation of non- Newtonian flows (tailings) Other models used

More information

TENNESSEE GAS PIPELINE COMPANY, L.L.C.

TENNESSEE GAS PIPELINE COMPANY, L.L.C. TENNESSEE GAS PIPELINE COMPANY, L.L.C. HYDROLOGIC & HYDRAULIC CALCULATIONS FOR WATERBODIES CROSSED BY CONNECTICUT PIPELINE EXPANSION PROJECT CONNECTICUT LOOP Submitted by: Tennessee Gas Pipeline Company,

More information

SEDIMENT TRANSPORT CAPACITY OF PRESSURE FLOW AT BRIDGES

SEDIMENT TRANSPORT CAPACITY OF PRESSURE FLOW AT BRIDGES SDIMNT TRANSORT CAACITY OF RSSUR FLOW AT BRIDGS Martin N.R. Jaeggi Consulting river engineer, Bergholzweg 22, 8123 bmatingen, Switzerland phone +41 44 980 36 26, fax +41 44 980 36 30, e-mail: jaeggi@rivers.ch

More information

Emergency Spillways (Sediment basins)

Emergency Spillways (Sediment basins) Emergency Spillways (Sediment basins) DRAINAGE CONTROL TECHNIQUE Low Gradient Velocity Control Short-Term Steep Gradient Channel Lining Medium-Long Term Outlet Control Soil Treatment Permanent [1] [1]

More information

CHAPTER 9. Outlet Protection

CHAPTER 9. Outlet Protection CHAPTER 9 Outlet Protection General Considerations Not an ABACT, but should be used in all watersheds to prevent erosion due to concentrated discharges For channel or swale, use guidance for pipe with

More information

Small Dam Hazard Assessment Inventory

Small Dam Hazard Assessment Inventory Small Dam Hazard Assessment Inventory What would happen if your dam were to fail? This is a question that most dam owners hope they will never have to answer. However it is a question you, as a responsible

More information

Open Channel Flow in Aquaculture

Open Channel Flow in Aquaculture SRAC Publication No. 74 Southern Regional Aquaculture Center March 1995 PR VI Open Channel Flow in Aquaculture J. David Bankston, Jr. 1 and Fred Eugene Baker Open channel flow of water has been used in

More information

Table C.2 Modified Cowan method for determining channel roughness Manning s n = (n b + n 1 + n 2 + n 3 + n 4) m

Table C.2 Modified Cowan method for determining channel roughness Manning s n = (n b + n 1 + n 2 + n 3 + n 4) m Manning s Roughness Table C.2 Modified Cowan method for determining channel roughness Manning s n = (n b + n 1 + n 2 + n 3 + n 4) m Channel condition n and m Description values Channel material Earth 0.020

More information

Lower Raritan Watershed Management Area Stormwater & Flooding Subcommittee Strategy Worksheet LRSW-S3C1

Lower Raritan Watershed Management Area Stormwater & Flooding Subcommittee Strategy Worksheet LRSW-S3C1 Strategy Name: Reduce Existing Potential for Flood Damages LRSW-S3C1. Develop and implement a program to: Minimize flood damages through the use of structural measures. Minimize flood damages through the

More information

Procedures for No-Rise Certification For Proposed Developments in the Regulatory Floodway

Procedures for No-Rise Certification For Proposed Developments in the Regulatory Floodway US Department of Homeland Security Region X 130 228 th Street, SW Bothell, WA 98021 Procedures for No-Rise Certification For Proposed Developments in the Regulatory Floodway Section 60.3 (d) (3) of the

More information

Lower Breton Sound Sediment Diversion Conceptual Engineering Design Presentation

Lower Breton Sound Sediment Diversion Conceptual Engineering Design Presentation EXPERT PANEL ON DIVERSION PLANNING AND IMPLEMENTATION Lower Breton Sound Sediment Diversion Conceptual Engineering Design Presentation February 12, 2015 Topics I. Introduction II. Geotechnical Study III.

More information

Predicting Coastal Hazards: A Southern California Demonstration

Predicting Coastal Hazards: A Southern California Demonstration Predicting Coastal Hazards: A Southern California Demonstration Patrick Barnard United States Geological Survey Coastal and Marine Geology Team Santa Cruz, CA Southern California Multi-hazards Demonstration

More information

4.2 Buena Vista Creek Watershed

4.2 Buena Vista Creek Watershed Buena Vista Creek Watershed 4.2 Buena Vista Creek Watershed Watershed Overview The Buena Vista Creek Watershed is the fourth-largest system within the Carlsbad Hydrologic Unit. The watershed extends approximately

More information

FINAL TECHNICAL MEMORANDUM AWD-00002 FLOWS THROUGH FLOOD DAMAGE REDUCTION AREA July 16, 2012

FINAL TECHNICAL MEMORANDUM AWD-00002 FLOWS THROUGH FLOOD DAMAGE REDUCTION AREA July 16, 2012 FINAL TECHNICAL MEMORANDUM AWD-00002 FLOWS THROUGH FLOOD DAMAGE REDUCTION AREA July 16, 2012 Table of Contents TABLE OF CONTENTS Table of Contents... 1 Executive Summary... 2 1 Objective... 4 2 Study Approach...

More information

HUDSON RIVER-BLACK RIVER REGULATING DISTRICT BOARD MEETING JUNE 10, 2014

HUDSON RIVER-BLACK RIVER REGULATING DISTRICT BOARD MEETING JUNE 10, 2014 HUDSON RIVER-BLACK RIVER REGULATING DISTRICT BOARD MEETING JUNE 10, 2014 PRESENTATION TOPICS Analysis Objectives Analysis Dam Removal Plan Dam Remediation Plan Effects Analysis Permit Requirements Decision

More information

CHRISTOPHER B. BURKE ENGINEERING, LLC

CHRISTOPHER B. BURKE ENGINEERING, LLC CHRISTOPHER B. BURKE ENGINEERING, LLC Yellow River Sediment Control Evaluation Preliminary Engineering Report Starke County, Indiana Prepared For: 3-County Drainage Board February 2012 DRAFT YELLOW RIVER

More information

San Diego Integrated Regional Water Management Implementation Grant Proposal Economic Analysis Flood Damage Reduction Costs and Benefits

San Diego Integrated Regional Water Management Implementation Grant Proposal Economic Analysis Flood Damage Reduction Costs and Benefits Attachment 9 San Diego Integrated Regional Water Management Economic Analysis Flood Damage Reduction Costs and Benefits Attachment 9 consists of the following items: Flood Damage Reduction Costs and Benefits.

More information

Open Channel Flow Measurement Weirs and Flumes

Open Channel Flow Measurement Weirs and Flumes Open Channel Flow Measurement Weirs and Flumes by Harlan H. Bengtson, PhD, P.E. 1. Introduction Your Course Title Here Measuring the flow rate of water in an open channel typically involves some type of

More information

The Teton Creek Restoration Project Summary:

The Teton Creek Restoration Project Summary: The Teton Creek Restoration Project Summary: The Teton Creek Restoration Project area extends for approximately one mile upstream from the Cemetery Road Bridge and includes the Aspen Pointe, The Aspens

More information

Index-Velocity Rating Development (Calibration) for H-ADCP Real-Time Discharge Monitoring in Open Channels

Index-Velocity Rating Development (Calibration) for H-ADCP Real-Time Discharge Monitoring in Open Channels Index-Velocity Rating Development (Calibration) for H-ADCP Real-Time Discharge Monitoring in Open Channels Hening Huang Teledyne RD Instruments, Inc., 14020 Stowe Drive, Poway, CA. 92064, USA (Tel: 858-842-2600,

More information

Scour and Scour Protection

Scour and Scour Protection Design of Maritime Structures Scour and Scour Protection Steven A. Hughes, PhD, PE Coastal and Hydraulics Laboratory US Army Engineer Research and Development Center Waterways Experiment Station 3909 Halls

More information

HEC-RAS. River Analysis System. Applications Guide. Version 4.1 January 2010. US Army Corps of Engineers Hydrologic Engineering Center CPD-70

HEC-RAS. River Analysis System. Applications Guide. Version 4.1 January 2010. US Army Corps of Engineers Hydrologic Engineering Center CPD-70 US Army Corps of Engineers Hydrologic Engineering Center HEC-RAS HEC-RAS River Analysis System Applications Guide Version 4.1 January 2010 Approved for Public Release. Distribution Unlimited CPD-70 REPORT

More information

Endangered Species Ecosystem: Striking a Balance With Flood Risk Management

Endangered Species Ecosystem: Striking a Balance With Flood Risk Management Endangered Species Ecosystem: Striking a Balance With Flood Risk Management Peter Tomsovic RECON Environmental, Inc. Tiffany Bostwick U.S. Army Corps of Engineers Thomas Keeney U.S. Army Corps of Engineers

More information

Floodplain Hydraulics! Hydrology and Floodplain Analysis Dr. Philip Bedient

Floodplain Hydraulics! Hydrology and Floodplain Analysis Dr. Philip Bedient Floodplain Hydraulics! Hydrology and Floodplain Analysis Dr. Philip Bedient Open Channel Flow 1. Uniform flow - Manning s Eqn in a prismatic channel - Q, V, y, A, P, B, S and roughness are all constant

More information

URBAN DRAINAGE CRITERIA

URBAN DRAINAGE CRITERIA URBAN DRAINAGE CRITERIA I. Introduction This division contains guidelines for drainage system design and establishes a policy for recognized and established engineering design of storm drain facilities

More information