Iowa DOT

Volume of Traffic on the Primary Road System

Route	2003	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2003				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	4150	28	3089	1033	13	109	52	10	210	574	41	24	16446	4094
20	IA 14 INTERCHANGE	Rural	8.005	4140	28	3124	987	12	98	47	9	203	555	39	23	33141	7901
20	WEST LIMITS OF DIKE	Rural	6.484	7500	55	6056	1388	20	166	79	16	274	749	53	32	48630	9000
20	CO RD T55 INTERCHANGE	Municipal	0.523	7500	55	6056	1388	20	166	79	16	274	749	53	32	3923	726
20	EAST LIMITS OF DIKE	Municipal	0.521	7200	53	5805	1342	18	150	72	14	269	735	52	30	3751	699
20	WEST LIMITS OF DIKE	Rural	0.738	7200	53	5805	1342	18	150	72	14	269	735	52	30	5314	990
20	EAST LIMITS OF DIKE	Municipal	0.302	7200	53	5805	1342	18	150	72	14	269	735	52	30	2174	405
20	CO RD T69 INTERCHANGE AT
20	WEST LINE OF BLACK HAWK COUNTY	Rural	3.494	7200	53	5805	1342	18	150	72	14	269	735	52	30	25157	4689
	ROUTE SUMMARY - RURAL		22.684	5673												128688	26674
	ROUTE SUMMARY - MUNICIPAL		1.346	7317												9848	1830