Iowa DOT

Volume of Traffic on the Primary Road System

Route	2004	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2004				Motorcylces	Cars, vans and pickups	Total trucks and buses	Single unit trucks				Combination trucks				All vehicles	Trucks and buses
	Primary route section description							Single unit trucks				Combination trucks
	Primary route section description							Buses	2Axles	3Axles	4 or more axles	4 or less axles	5Axles	6 or more axles	Multiple trailers
20	38 Grundy COUNTY
20	CO RD T19 INTERCHANGE	Rural	3.963	7300	55	6130	1115	15	100	45	7	232	645	46	24	28930	4419
20	IA 14 INTERCHANGE	Rural	8.005	7300	56	6185	1059	13	83	38	6	225	626	45	23	58437	8477
20	WEST LIMITS OF DIKE	Rural	6.484	10700	81	9003	1615	26	171	77	13	325	905	65	33	69379	10472
20	CO RD T55 INTERCHANGE	Municipal	0.523	10700	81	9003	1615	26	171	77	13	325	905	65	33	5596	845
20	EAST LIMITS OF DIKE	Municipal	0.521	11600	89	9876	1635	26	171	77	13	330	919	66	35	6044	852
20	WEST LIMITS OF DIKE	Rural	0.738	11600	89	9876	1635	26	171	77	13	330	919	66	35	8561	1207
20	EAST LIMITS OF DIKE	Municipal	0.302	11600	89	9876	1635	26	171	77	13	330	919	66	35	3503	494
20	CO RD T69 INTERCHANGE AT
20	WEST LINE OF BLACK HAWK COUNTY	Rural	3.494	11600	89	9876	1635	26	171	77	13	330	919	66	35	40530	5713
	ROUTE SUMMARY - RURAL		22.684	9074												205837	30288
	ROUTE SUMMARY - MUNICIPAL		1.346	11250												15143	2191