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Projects and Initiatives at the Hydrologic Engineering Center (HEC)

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Title: Projects and Initiatives at the Hydrologic Engineering Center (HEC)


1
Projects and Initiatives at the Hydrologic
Engineering Center (HEC)
  • Presented By Christopher N. Dunn, P.E.,
    Director
  • Hydrologic Engineering Center
  • Institute for Water Resources
  • For Northern California AWRA, Sacramento CA
  • 10 March 2009

2
Corps Water Resources Divisions Districts
3
U.S. Army Corps of Engineers Key Mission Areas
4
Corps of Engineers Organization
HQUSACE
Major Subordinate Commands Or Divisions
Institute for Water Resources (FOA)
Mississippi Valley Division
North Atlantic Division
South Pacific Division
Pacific Ocean Division
South Atlantic Division


Great Lakes and Ohio River Division
Southwestern Division
Gulf Region Division
Northwestern Division

Kansas City
Fort Worth
Charleston
Albuquerque
Alaska
Vicksburg
Baltimore
Central Baghdad
Omaha
Buffalo
Galveston
Jacksonville
Honolulu
Memphis
New England
Sacramento
North Mosul
Portland
Chicago
Little Rock
Mobile
Far East
New York
New Orleans
Los Angeles
Detroit
Tulsa
Seattle
South Basrah
Savannah
Japan
St Paul
Norfolk
San Francisco
Huntington
Walla Walla
Wilmington
Rock Island
Philadelphia
Louisville
Europe
St Louis
Nashville
Engineer Research and Development Center - 7 Labs
Civil Works District Offices
Humphreys Engineer Center Support Activity (FOA)
Pittsburgh
Military Districts
Marine Design Center (FOA)
Finance Center (FOA)
249th Prime Power Battalion
TransAtlantic Programs Center
Huntsville Engineering and Support Center
Afghanistan Engineer District
5
Institute for Water Resources Hydrologic
Engineering Center
Center of expertise in hydrologic engineering and
planning analysis executing a balanced program of
technical assistance, research, software
development, training and special studies.
Located in Davis, California. Organization
within the Institute for Water Resources.
6
Hydrologic Engineering Center
  • Support office within USACE Institute for Water
    Resources.
  • USACE Center of Expertise for Hydrologic
    Engineering and Planning Assistance.
  • 33 full-time professionals hydraulic engineers,
    a few computer specialists, mostly MS degrees, a
    few Ph.Ds.
  • 15 additional staff IWR employees, UCD students,
    admin staff.
  • Primarily support USACE some other Federal
    agencies occasional international assistance
    increasing number of MoUs visiting scholars
    U.S. and international.

7
Brief History, Origin HEC
  • Created by HQUSACE initiative in 1964.
  • Principals HQUSACE HH, SPK Engineering
    Division.
  • Imminent retirements of WWII veterans.
  • Institutionalize hydrologic engineering
    critical skill.
  • 1964 Branch within SPK Engineering Division.
  • 1965 Division within SPK (under Commander).
  • 1971 Organization assigned to SPD Commander.
  • 1978 Briefly FOA reporting to Director of Civil
    Works, then assigned to the Water Resources
    Support Center, a new FOA reporting to Director
    of Civil Works (CECW).
  • 2000 Assigned to Institute for Water Resources,
    an FOA/support office reporting to CECW.

8
HEC Basic PreceptsHEC Business Model
  • HEC exists to help the Corps perform its CW
    mission in a world-class manner.
  • The work of the Corps is performed at the field
    office level.
  • HEC products and services are for field use and
    application.
  • HEC is a wholly owned (by CECW) small business
    with primary customer base being the field
    offices to lesser extent, HQUSACE, Labs, other
    Corps and Army elements, and other
    agencies/partners.

9
HEC Divisions/Responsibilities
10
Typical Products/Projects
  • HH and planning analysis software new
    models/GIS utilities versions new software.
  • Real-time water control Modernized Corps Water
    Management System Corps-wide deployment
    completed now supporting and improving.
  • Studies/support Katrina Support Ft. Worth
    Flood Warning model Great Lakes Study NWS
    Forecasting Model for Joint Operations Bill
    Williams River Restoration Sac/SJ Comp Study
    Sac River Risk Analysis Tooele Ft. Huachuca
    groundwater Ohio River WSP modeling Sonoma
    County Water Agency ACT-ACF, FEMA Map
    Modernization, Iraq water management,
    Afghanistan, South Florida Water Management
    District Tampa Bay Water LCRA Bulletin 17B
    Levee Certification Dam Safety.
  • Training Average 10 courses, 6 workshops
    publications, video tapes, software support, Web
    dissemination.

11
HEC Software Activities
  • Complete product line for hydrologic engineering
    in HEC library.
  • Solve problems in a general manner for use
    everywhere.
  • Hydrologic Statistics with SSP
  • Watershed hydrology with HMS GeoHMS.
  • River hydraulics with RAS GeoRAS.
  • Reservoir Analysis with ResSim.
  • Flood damage analysis with FDA and FIA.
  • Software Integration with CWMS, DSSVue.
  • Ecosystem Functions with EFM
  • Watershed Analysis with WAT

12
Hydrologic Statistical Software Package HEC-SSP
Version 1.0
Develop statistical analysis software that
supports hydrologic studies. This software will
perform frequency analysis, regional regression,
coincident frequency analysis, duration analysis,
etc.
13
Hydrologic Modeling System, HEC-HMS, Version 3.3
  • Computes streamflow throughout a river basin
    given precipitation and watershed
    characteristics.
  • Event and continuous simulation, multiple
    routing/ runoff methods, grid precip., losses
    runoff, snowmelt, coeff. estimation, dam break,
    powerful GUI.
  • GeoHMS GIS utility for watersheds/sub-watersheds,
    runoff parameters. ArcGIS 8.X version underway.

14
Surface Water Enhancements HEC-HMS - Version 3.3
  • Sediment Washoff (lumped area gridded washoff)
  • Water quality simulation thru NSM
  • Surface Washoff
  • Total Nitrogen
  • Total Phosphorous
  • Fecal Coliform
  • Reservoir Features
  • Spillway Options
  • Dam Face Seepage
  • Specified Release
  • Evaporation

15
GeoHMS Preprocessor to HMS
Inputs DEM Gage Locations HUC RF1 Others
Products 1. Lumped Basin Model 2. Cell
Parameter File 3. Distributed Basin Model 4.
Background Map File 5. Physical Characteristics
of Streams and Watershed Tables
GeoHMS
HMS
16
HEC-RAS, River AnalysisVersion 4.0
  • 1-Dimensional hydraulics program
  • Computes river velocities, stages, profiles, and
    inundated areas (with GeoRAS) given streamflow
    and geometry.
  • Steady and Unsteady Flow

17
River Analysis EnhancementsHEC-RAS -Version
4.0Software to analyze steady and unsteady flow,
sediment transport WQ
  • 1D sediment transport (movable bed calculations
    through scour and deposition).
  • Pump Stations
  • Compute Ungaged Flow from Gaged Data
  • Interfacing RAS with 2D ADH
  • Automating Mannings n value for calibration
  • Water temperature modeling to HEC-RAS
  • Water quality constituents to the HEC-RAS
    analysis process by incorporating the water
    quality computations of QUAL-RIV1

18
HEC-GeoRAS
  • Post-processor for mapping and displaying results
    from hydraulic simulations
  • Pre-processor for generating geometric data for
    HEC-RAS

19
Groundwater/Surface Water Interaction for HEC-RAS
Develop a coupled model that will support
improved representation of water exchange where
groundwater interaction is a significant
component of channel flow, and provide a more
complete accounting of water storage in
groundwater and channels.
1. Evaluation of OpenMI non-proprietary software
used for coupling models at the time-step
level. 2. Algorithm for computing water exchange
between HEC-RAS and MODFLOW. 3. Mapping of
stream on groundwater model grid. 4. Temporal
issues. 5. Spatial issues. 6. User Interface.
20
Reservoir System Analysis HEC-ResSimVersion 3.0
  • Simulates reservoir operations for flood
    management, low flow augmentation and water
    supply for planning studies, detailed reservoir
    regulation plan investigations, and real-time
    decision support
  • New features include pump-back storage,
    multi-reservoir system operation to meet power
    generation goals and capability to utilize
    Ensemble Streamflow Predictions from the NWS.

21
Reservoir Water Quality EnhancementsHEC-ResSim
CE-QUAL-W2
  • Demand for water quality and temperature modeling
    for real-time and planning analyses
  • Looking to link both models thru OpenMI (Open
    Model Interface) rather than fund a major
    development effort
  • Will provide in and downstream of the reservoir
  • Temperatures
  • Dissolved Oxygen
  • Other conservative constituents
  • Variable gate settings

22
Flood Risk Management ToolsHEC-FDA Version
1.2.4/HEC-FIA
  • Develop software to perform flood risk
    management analyses project benefit analysis
    including loss-of-life consequences evaluate
    flood risk management measures using risk and
    uncertainty and including systems approach and
    GIS capability. Improve planning capability by
    enabling multi-purpose formulation, tradeoff
    analysis, promoting Collaborative Planning and
    NED/NER formulation.

23
Flood Damage Reduction Analysis HEC-FDA,Version
1.2.4
  • Plan Evaluation and Plan Formulation Tool
  • Helps answer the question "Which proposed flood
    damage reduction plan is the best from an
    economic standpoint?"
  • evaluate the existing condition
  • analyze alternative damage reduction plans
  • Compare plans using Expected Annual Damage and
    damage reduction benefits
  • Since 1996, use risk analysis procedures

24
Event Damages with HEC FIA - Flow Impact Analysis
  • Computes damages to structures and other
    contents of the floodplain (including
    agricultural and environmental) given river
    stages damage relationships.

25
Goals for HEC-FRM (Flood Risk Management)
  • Systems approach for assessing risks in complex,
    interdependent systems
  • Incorporation of social and environmental
    consequences
  • Tools for levee assessment and certification
  • Effective risk communication
  • New computational methodology

26
HEC-EFM Ecosystems Functions Model Version 1.0
  • Planning tool for flow regime change.
  • Reservoir/regulation change, diversions,
    remove/set back levee, reconfigure channel.
  • Impact on terrestrial and aquatic habitat.
  • Change direction/magnitude - biologic impact.
  • Team use biologists, geomorphologists,
    hydraulic engineers, environmental managers.
  • Premise hydrologic/hydraulic data can help
    predict biologic response.

Spawning Habitat
Cottonwood Recruitment
27
Floodplain Spawning Habitat - With Project
  • With Project
  • Increased flow and stage
  • Without Project
  • Flow is 14,800-cfs
  • Stage is 15.67-ft

28
Corps Water Management System
  • CWMS is the data acquisition, management,
    modeling and decision support system that
    supports the Corps in its water management
    mission of regulating more than 700 dam and
    reservoir projects.
  • CWMS is a nationwide integrated system of
    hardware, software, and other resources that
    acquires, analyzes, and stores data develops
    decision support information and allows user
    access to any data and information on the system.

29
Corps Water Management System(CWMS)
  • Improved Real-Time Water Management Decision
    Support for over 700 Multipurpose Reservoirs,
    Control Structures and Thousands of miles of
    Levees.
  • An integrated suite of real-time water resources
    software
  • Standard Corporate Centrally Supported
    Hardware/Software.
  • From 40 Existing Unique Systems to one CWMS.

30
CWMS Watershed Modeling
31
Watershed Analysis Tool (HEC-WAT)
  • Create a product that will improve the
    coordination, communication, and productivity of
    a Project Delivery Team throughout a project
    study by involving modelers early in the study
    process, allowing data and results to be shared
    across models, and visualizing model parameters
    and results, all using a shared and intuitive
    interface.

32
Environmental
Hydrology
Reservoir
Flood Damage
Hydraulics
33
HEC-WAT Model Integration
  • Integrate model and tools used during the
    analytical process
  • Hydrology - HEC-HMS GeoHMS - Done
  • Reservoir Operations - HEC-ResSim - Done
  • Hydraulics - HEC-RAS GeoRAS - Done
  • Economics - HEC-FIA - Done
  • Statistical HEC-SSP Done
  • Data HEC-DSSVue Done
  • Environmental - HEC-EFM Done
  • Future Additions HEC-FDA, RiverWare

34
Result Comparison in the WAT
35
Typical Project WorkSacramento and San Joaquin
Comprehensive Study
  • Hydrologic Modeling
  • Watershed Impact Analysis
  • HEC-FDA Technical Assistance
  • HEC-FIA Model Development
  • Risk Communication and Mapping
  • Conjunctive Use
  • Ecosystem Functions Model (EFM)

36
Hydrologic Modeling
  • Sacramento Basin
  • 27,000 Sq. Mi.
  • San Joaquin River Tulare Lake Bed Basins
  • 32,000 Sq. Mi.
  • 33 HEC-HMS models

Sacramento River Basin
San Joaquin River/Tulare Lake Bed Basins
37
Conjunctive Use for Flood Benefits
  • Determine if flood benefits from employing
    Conjunctive Use practices outweigh the costs
  • Increase system storage capacity by including
    depleted groundwater aquifers
  • Shift existing water supply to aquifers in order
    to increase flood storage reservation in surface
    reservoirs

38
Spillway Adequacy for Dam Safety
Use design storms to model extreme events
39
Assistance to Iraq Ministry of Water Resources
(MoWR)
  • Training and collaborative water management
    system model creation.
  • Model expansion and refinement.
  • Baseline flow data preparation and coding.
  • Unimpaired, current, and a projected future.
  • Gauging technology advice and demo.
  • On-site training model, water management,
    gauging system restoration.

40
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41
The Helmand Valley - Afghanistan
  • Drainage area
  • 160,000 km2
  • 31 of country
  • Helmand River
  • AY14 Billion m3
  • Kajakai Reservoir

42
Flood Warning and Response System
  • Provide a Flood Warning and Response System to
    communities along river systems
  • Provide accurate and timely warnings
  • Maximize response time (County Emergency
    Management Agencies and Floodplain Residents)
  • Use stage/elevation-based flood inundation
    mapping
  • Evacuation flood warning plan formulation tool
  • Damage estimates (expedite disaster assistance)
  • Educate the public on flood hazard
  • Two Major Applications
  • Susquehanna River and San Antonio River

43
Risk Analysis/Impact Analyses of Proposed
Modifications to the Sacramento River Flood
Control Project Levees
  • To Define a Risk Analysis Methodology
  • Identify if system-wide hydraulic impacts
    resulting from alterations and modifications to
    the SRFCP can be determined with Risk Analysis
  • Compare Risk Methodology to Traditional
    Deterministic Methodology
  • NOT comparing resultsOnly the Process

44
SRFCP
  • 1300 miles of levees
  • Protects 800k Acres
  • Significant Upstream Storage Reservoirs
  • Downstream channel capacity must be maintained

45
Certification of Levee Systems for the NFIP (EC
1110-2-6067)
  • Focus is on the levee system that is associated
    with a given separable floodplain.
  • A levee system is inclusive of all components
    that are interconnected and necessary to insure
    protection of the associated floodplain
    levee/floodwall sections, closure structures,
    pumping stations, culverts, interior drainage
    works, and system operation and maintenance
  • No PARTIAL system certifications

t
Riversburg
Greentown
Metroville
This diagram shows one levee project and three
levee systems
46
HEC Training Classes FY09
  • Nonstructural Measures for Flood Risk Management
    Mar 30 - Apr 03
  • Hydrologic Analysis for Ecosystem Restoration Apr
    06-10
  • Advanced Steady Flow Analysis with HEC-RAS May
    04-08
  • Risk Analysis For Flood Damage Reduction Projects
    Jun 15-19
  • Statistical Methods in Hydrology Jul 13-17, 09
  • Sediment Transport Analysis With HEC-RAS Aug
    17-21
  • Advanced Reservoir Modeling with HEC-ResSim Sep
    14-18

47
Proposed HEC Training Classes FY10
  • Steady Flow with HEC-RAS Oct 26-30
  • Water and the Watershed Nov 16-20
  • Risk Analysis for Flood Damage Reduction Projects
    Dec 7-11
  • Reservoir System Analysis with HEC-ResSim Jan
    11-15
  • HH for Dam Safety Studies Jan 25-29
  • Hydrologic Analysis for Ecosystem Restoration Mar
    22-26
  • Water Data Management with HEC-DSSVue Apr 12-16
  • Flood Frequency Analysis May 17-21
  • Hydrologic Engineering Applications for GIS Jun
    21-25
  • Hydrologic Engineer Role in Planning Jul 12-16
  • Unsteady Flow Analysis with HEC-RAS Jul 26-30
  • Hydrologic Modeling with HEC-HMS Aug 16-20
  • Advanced HEC-ResSim Sep 13-17

48
HEC Senior Staff, Contact Information
  • Chris Dunn, P.E., Director
  • Jeff Harris, Hydrology Hydraulics Technology
    Div.
  • Mike Deering, P.E., Water Resources Systems Div.
  • Tom Evans, Ph.D., Water Management Systems Div.
  • Gary Brunner, P.E., Senior Technical Specialist,
    River Hydraulics
  • Bill Charley, P.E., Senior Technical Specialist,
    Water Control
  • HEC Web site http//www.hec.usace.army.mil
  • christopher.n.dunn_at_usace.army.mil
  • Contact for publications, software
  • Hydrologic Engineering Center
  • 609 Second Street
  • Davis, CA 95616
  • Ph 530/756-1104
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