HomeMy WebLinkAbout300 SMITH STREET, OLD TOWN COMMONS - PDP - 39-03A - CORRESPONDENCE - CITY STAFF (5)Design. Floili Depth (0100 x 11)
Cross Section for Irregular Channel
Project Dew"on
Worksheet
Swett Swale
Flow Elernerd
Irregular Channel
Method
Mannft% Formula
Solve For
Channel Depth
Section Data
MannbW Coe
0.017
Channel Slope
0.0096 fLqt
Water Surface Elevation
024 ft -4-
Elevation Range
0.00 to I."
1.07 db
1.60
1.20
0.80
0.40
0.00 L
-0+3.0 -0+2.0 -0+1.
0
v.iN
HA
NITS
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Project Ergtnaw. Nick
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• -Q(100) x 1.333 =1.07 cts•.
Worksheet for irregular Channel
Project Desciptlon
workshest SkhM Swale
Flow Element Irregular Channel
Method . MannhWs Formula
Solve For Channel Depth
Input Data
Channel Slope. 0.0096, ft/ft
Disd 1.07 uds
Options
Current Roughness Method
Improved Loner's Method
Open Channel Weighting Method
Improved Loftm's Method'
Closed Chanrhel Waf� Method
Horton s Method
Results
Manntngs. Coetliclent
0.017
Water Surface ElOV80 n
024 ft
Elevation Range
0.00 to 1."
F1owArea=
0.5 ft'
Wened Pertrtmter
3.428 ft
TOP 1kith
3.383 2
Actual Depth
0.24 ft .
Critical Elevation
025 ft -
Critical Slope .
0.0082 ftflt
Velocity
227 ft/s
Velocity Head .
0.08 ft
Spftft Energy
0.32 ft
Froude Number
1.07
Flow Type
Supenxi W
Roughness Segments
Shut End
Manrdngs
Station Station
Coaftlent
-0+02.17-0+00.67
0.035
-0+00.67 0+00.67
0.016
0+00.67. 0+05.00 •
0.035
Natural Channel Points "
Station Elevation
ift) cft>
-0+02.17 0243—S&^MlQe&
-0+00.87 0.056
0+00.00 0.000
gar C&WA - PAM
0+00.67 0.056
0+05.00 (3:1 -6 ¢:1
Notes: Contrflxitory Area = 0.08 ac
Q= C x I x A
Q = 1.0 x 9.95 x 0.08
Q=0.8ds
Q(design) = Q(100) x 1.333
Q(design) = 0.8 x 1.333
Q(deeign) =1.07 cls
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