اختصارات ميكانيكيه مهمه جدا

Commonly Used Abbreviations

ASCE === American Society of Civil Engineers
ASTM === American Society for Testing and Materials
BCD === Baffle chute drop
BFE === Base flood elevation
BMP === Best management practice
CDOT === Colorado Department of Transportation
CDPHE === Colorado Department of Public Health and Environment
CGIA === Colorado Governmental Immunity Act
CMP === Corrugated metal pipe
CRS === Colorado Revised Statutes
CUHP === Colorado Urban Hydrograph Procedure
CWA === Clean Water Act
CWCB === Colorado Water Conservation Board
DCIA === Directly connected impervious area
DRCOG === Denver Regional Council of Governments
EGL === Energy grade line
EPA U.S. === Environmental Protection Agency
FAA === Federal Aviation Administration
FEMA === Federal Emergency Management Agency
FHAD === Flood Hazard Area Delineation
FHWA === Federal Highway Administration
FIRM === Flood Insurance Rate Map
FIS === Flood Insurance Study
FPE === Flood protection elevation
GSB === Grouted sloping boulder
HGL === Hydraulic grade line
HUD U.S. === Department of Housing and Urban Development
H:V === Horizontal to vertical ratio of a slope
ICC === Increased cost of compliance
LID === Low impact development
MDCIA === Minimized directly connected impervious area
NAVD === North American Vertical Datum
NFIA === National Flood Insurance Act
NFIP === National Flood Insurance Program
NGVD === National Geodetic Vertical Datum
NOAA === National Oceanic and Atmospheric Administration
NPDES === National Pollutant Discharge Elimination System
NRCS === Natural Resources Conservation Service
PMP === Probable maximum precipitation
RCP === Reinforced concrete pipe
SBA === Small Business Administration
SEO === Colorado State Engineer’s Office
SFHA === Special Flood Hazard Area
SFIP === Standard Flood Insurance Policy
SWMM === Stormwater Management Model
TABOR === Taxpayers Bill of Rights
TWE === Tailwater elevation
UDSWM === Urban Drainage Stormwater Management Model
USACE U.S. == Army Corps of Engineers
USGS U.S. === Geological Survey
WEF Water === Environment Federation
VHB === Vertical hard basin
WQCV === Water quality capture volume

Commonly Used Units

cfs === cubic feet per second
cfs/ft ===cubic feet per second per foot
ft === foot
ft2 === square feet
ft/ft === foot per foot
ft/sec ===feet per second
ft/sec2 ===feet per second squared
hr === hour
in === inch
in/hr ===inches per hour
in/hr/ac ===inches per hour per acre
lbs === pounds
lbs/cy ===pounds per cubic yard
lbs/ft2 ===pounds per square foot
lbs/ft3 ===pounds per cubic foot
lbs === PLS/acre pounds pure live seed per acre
min ===minute
psi === pounds per square inch
psf === pounds per square foot