DITCH:
		¥Use proper soil, grass, shrubs and stones to avoid erosion
	¥Keep ditch free of debris
	Culvert
	¥Water bar is a ridge (like a speed bump)-->stops water from running down road and diverts it to the side
	¥Rubber bar: best for seasonal and driveway use b/c susceptible to plow damage
	¥Set in ground at 30 degree downslope with pitch of 2-4%
	¥Have 1in. crown for every 10 ft. culvert length