Stages of Channel Design
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A. The Channel Slope.
Slope Hydrolysis drainage channel have to be adapted for a vertical planning alignment and field condition road. But that way slope hydrolyses from this drainage channel have to be labored not more minimize 0,3. If bigger channel slope 10.
B. Lose Energy
Place where needed by Box culvert, channel or groove existing getting through road; hence dimension Box culvert will be determined by pursuant to high loss of the following maximum energy:
- To be long (L) max 20 cm Z = 10 cm
- To be long (L) min 20 cm Z = 20 cm
C. Lose Energy in Box culvert
Lose energy in Box culvert determined by pursuant to length Box culvert.
- To be long less than 20 m z= 5-10cm
- To be long more than 20 m z= 10-20 cm 3.3.4
High Free Board in channel, Box Culvert River and determined the following:
- channel f = 20 cm
- Box culvert f = 0.80 D (D = diameter)
- Box Culvert f = 0.80 H (H = high of box culvert
- Bridge f = 150–200 cm from elevation irrigate floods.
