SITES SOFTWARE APPLICATION SITES SOFTWARE APPLICATION SEMINARSEMINAR
INTRODUCTION to SITESINTRODUCTION to SITES
____________________________________________________SITES 2005SITES 2005
INTEGRATED DEVELOPMENT ENVIRONMENTINTEGRATED DEVELOPMENT ENVIRONMENTfor
WATER RESOURCE SITE ANALYSIS
HISTORYHISTORY
• Program Developed Over Time by NRCS
• Spillway Erosion Technology Developed Jointly by ARS and NRCS
• Interface, IDE continuing to be developed to provide a user-friendly environment
DAMS CONSTRUCTED NATIONWIDE
0
100
200
300
400
500
600
7001948
1950
1952
1954
1956
1958
1960
1962
1964
1966
1968
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
YEAR DAMS WAS CONSTRUCTED
NUM
BER
OF
DAM
S CO
NSTR
UCTE
D
RC&D
PL-534
PILOT
PL-566
25 years
DAM CLASSIFICATION DAM CLASSIFICATION NRCS Dams Inventory
Designed Current %change
-100
102030405060708090
Designed Current %change
a b c
CLASSCLASSaa aa
cc%%
SITES ? ? ?SITES ? ? ?•Watershed Rainfall-Runoff
• Streamflow routing
• Reservoir Routing Principal spillway rating Auxiliary spillway rating NRCS dam design features
• Earth Spillway Analysis
HISTORYHISTORY
• Program Developed Over Time by NRCS
• Spillway Erosion Technology Developed Jointly by ARS and NRCS
• Interface, IDE continuing to be developed to provide a user-friendly environment
ERODED SPILLWAYERODED SPILLWAY
LABORATORY SPILLWAY MODELLABORATORY SPILLWAY MODEL
SPILLWAY EROSION PHASESSPILLWAY EROSION PHASES
1. SURFACE EROSION 1. SURFACE EROSION (Cover Destruction)
2. CONCENTRATED FLOW EROSION2. CONCENTRATED FLOW EROSION
3. HEADCUT ADVANCE3. HEADCUT ADVANCE
HISTORYHISTORY
• Program Developed Over Time by NRCS
• Spillway Erosion Technology Developed Jointly by ARS and NRCS
• Interface, IDE, developed to provide a user-friendly operating environment
In January 2006the new
Version 2005was released
