FLOOD00540

• County: Statewide
• Community: State of Colorado
• Stream Name: All
• Title: Colorado Flood Hydrology Manual
• Date: 1/1/1995
• Prepared For: State of Colorado
• Prepared By: CWCB
• Floodplain - Doc Type: Educational/Technical/Reference Information

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BAS-IN fACTOR, ll~o/sO.5

Figure 7-"10
Unit Hydrograph Lag Relationships for the Rocky Mountains

TalJle 7-14
General Storm Dimensionless Unit Hydrograph Data for the Rocky Mountains

Time t Timet Ti
in in ti
%of q % of q %
L,+o.5 ~,+0.5 L,
0 0 5
5 0.26 135 11.91 20~
10 .90 110 11.21 211
15 2.00 115 10.61 21:
20 3.00 120 10.01 22
25 5.00 125 9.40 22!
30 6.00 130 8.80 231

Colorado Flood
Hydrology Manual

me
n
of
to.
C

Time
tin
q % of
'-9+0.
50
3.72 305
3.55 3-10
3.40 315
3.25 320
3.10 325
3.00 330

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Time
tin
q %of
L,+O.
50
1.63 405 O.
f-
1.57 410 .7
-
1.50 415 .6
1--
1.45 420 .6
1.39 425 .6
'1.34 430 .6

q

Time
tin
%of q
L,+O.
5C
-
505 0.34
510 .33
515 .32
520 .31
525 .29
530 .28
---

74

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