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

9

Corps Water Management System

An integrated system of

hardware, software, and communication

resources supporting the

Corps’ real-time water control

management mission

10

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

11

Data Collection

Data Base

Watershed Modeling

Information dissemination

DataVisualization

CWMS Components

12

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

13

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

14

Data Visualization

15

Data Dissemination

Common information source Data & information placed on

WEB-based platform Available to Corps users & outside

interests Real-time availability

16

Watershed Modeling

Watershed Modeling

RAS(Hydraulics)

FIA(Damages)

ResSim(Storage)HMS

(Hydrology)

17

HEC-HMSHHydrologic Modeling

System

Computes runoff from observed & forecasted precipitation

18

HEC-RESSIM Reservoir Simulation

System

Simulates reservoir regulation using inflow hydrographs & project characteristics

19

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

21

22

23

24

25

26

ST

AG

E

(FT

)

DAMAGES ($1000)

0 100 200 300 400 500 600

21

Real-Time Forecast

I see Hurricane Ivan in your

future.

22

CWMS

Products

23

Status ofData Acquisition

24

Above Flood Stage

Cautionary Stage

Threshold Bars

25

Plots

Inflow

Outflow

26

Forecast Results

Tim

e of

For

ecas

tT

ime

of F

orec

ast

Inflow

Outflow

Lake Elevation

27

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

28

Data Dissemination

29

Flood Inundation Mapping

30

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