## Contraction Reach

- Reduced flow area, increased stuffs
- Ineffective flow area: area not wet during summer but wet during moonson seasons
- For bridge, river stations only at points of new river section (excludes constricted portion)
- Afflux
	- There'll be an assignment regarding this

### Procedure

#### Geometry

- Enter four cross sections
- Bridge/Culvert > Add Bridge > Deck:
	- Weir Coef. = 2.5
- Bridge/Culvert > Pier:
	- Copy piers 20m apart upto 4 count
- Bridge/Culvert > Sloping Abutment:
	- 
	
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