1
Multiple PurposeDam & Reservoir
2
Objectives
Describe real-time water control mission Introduce new Corps Water Management
System (CWMS) Concepts Components Models Products Applications
Questions ??
3
Perspective
Corps regulates 700 reservoirs nationwide
Real-time water control management decisions are driven by observed data & forecasted conditions
There is need for a swift, accurate, & reliable data management system to support real-time decision making
4
Julie’s District Slide
Susquehanna
&
Potomac
River Basins
5
Water Control Mission
To regulate reservoir projects, in real time, for in-lake and downstream benefits in accordance with authorized project purposes
6
Project Purposes & Benefits
Flood Control
Recreation
Water Supply
Water Quality
Hydropower
Flow Augmentation
(Navigation)
7
Real-TimeWater Control Data
Precipitation
Observed Downstream Flow
Reservoir Discharge
Downstream Flood Level
8
Water Control Management
Data ProcessingData Storage
ModelingObserved Data
Water Control Management Decisions
Instructions
SERVERS
Public and CooperatorsField Office
WeatherForecast
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Corps Water Management System
An integrated system of
hardware, software, and communication
resources supporting the
Corps’ real-time water control
management mission
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CWMS Development
HEC - system developer CURG - requirements, design, &
testing Status
Concepts: mid-1990’s Development: 1997 to 2001 Field deployment: 2001 to 2002 Current version: 1.3
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Data Collection
Data Base
Watershed Modeling
Information dissemination
DataVisualization
CWMS Components
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Data Acquisition
Collect: Real-time data: observed stream flow,
precipitation, temperature, water quality, gate settings, reservoir levels, etc.
Static data: physical data for model development
Decode Validate Transform
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Data Storage
ORACLE is CWMS database Interfaces with other databases (incl
DSS) Accessible by multiple users Modeling
Extracts data for analyses Posts results for decision-making
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Data Visualization
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Data Dissemination
Common information source Data & information placed on
WEB-based platform Available to Corps users & outside
interests Real-time availability
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Watershed Modeling
Watershed Modeling
RAS(Hydraulics)
FIA(Damages)
ResSim(Storage)HMS
(Hydrology)
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HEC-HMSHHydrologic Modeling
System
Computes runoff from observed & forecasted precipitation
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HEC-RESSIM Reservoir Simulation
System
Simulates reservoir regulation using inflow hydrographs & project characteristics
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0 20000 40000 60000 80000500
520
540
560
580
600
620
Bald Eagle Cr. for the WCDS Project Plan: 1) 10inforec 2) 2inforec
Main Channel Distance (ft)
Ele
vatio
n (
ft)
Legend
WS Peak Flows - 10inforec
WS Peak Flows - 2inforec
Ground
Lo
ck H
ave
n
Fis
hin
g C
k
Co
ttag
e A
rea
Be
ech
Ck
Sta
Ma
rsh
Ck
Bla
nch
ard
HEC-RASRiver Analysis System
Analyzes river hydraulics to compute water depth, velocity, & inundation boundaries
20
HEC-FIAFlow Impact Analysis
Assesses damages & benefits based on river stage
River
Level
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22
23
24
25
26
ST
AG
E
(FT
)
DAMAGES ($1000)
0 100 200 300 400 500 600
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Real-Time Forecast
I see Hurricane Ivan in your
future.
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CWMS
Products
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Status ofData Acquisition
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Above Flood Stage
Cautionary Stage
Threshold Bars
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Plots
Inflow
Outflow
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Forecast Results
Tim
e of
For
ecas
tT
ime
of F
orec
ast
Inflow
Outflow
Lake Elevation
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Impacts & Required Responses
Cr itical S tage Impact Action TimeSayers Lake Area 630.00 Summer Recreation Pool None 24May2002 1500
634.50 Entrance to Parking @ Winter Lot Close road to winter parking lot 29May2002 0300
635.00 Invert, Howard flap gates for Begin monitoring Howard interior 29May2002 0400interior drainage drainage areas
636.00 Top Well # 3 Pump Station at Close road to pump station at Green 29May2002 0700Green Br idge Bridge
636.10 Low Pt. Sycamore Loop Road Close Sycamore Loop Road 29May2002 0800
636.60 Low Pt. Winter Boat Storage Area Move boats from winter storage area 29May2002 1000
637.00 Floor of Restroom-W. Hunter Run Close restroom at Hunter Run 29May2002 1100 Launch Beach parking lot
637.40 Low Pt. Road at Hunter Run Launch Close road below Hunte r Run pkng Lot 29May2002 1300
637.50 Parking Lot Entrance @ Bald Eagle Close road to Ba ld Eagle launch area 29May2002 1400Launch
637.70 Entrance to Main Marina Close main marina 29May2002 1500
638.50 Floor Lwr Greens Run Fishing P ier Close Greens Run f ishing pier 29May2002 2100 Max Flood Stage - 02Jun02, 13:00 639.16 ft
Impact Action Table
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Data Dissemination
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Flood Inundation Mapping
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CWMS Applications
Real-time watershed forecasts Water control decision support Emergency planning and response Project planning (new projects,
alternative projects, modified regulation)
Post-event analyses (benefits) Flood plain studies
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