Iowa DOT

Volume of Traffic on the Primary Road System

Route	2012	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2012				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	42 Hardin COUNTY
20	CO RD S27 INTERCHANGE	Rural	3.939	8200	40	6300	1860	45	186	53	6	187	1286	43	55	32300	7327
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.242	510	3	429	78	1	6	2	0	8	57	2	2	123	19
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	250	1	173	76	3	12	3	0	7	47	2	2	65	20
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.242	240	1	196	43	2	7	2	0	4	26	1	1	58	10
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.261	260	1	220	38	2	7	2	0	3	22	1	1	68	10
20	US 65 INTERCHANGE	Rural	6.370	8100	39	6129	1932	46	190	54	6	194	1340	44	56	51597	12307
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.296	720	3	530	187	4	15	4	0	19	134	4	5	213	55
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.251	990	5	821	164	3	14	4	0	17	116	4	5	248	41
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.243	530	2	380	148	3	12	3	0	15	106	3	4	129	36
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.280	710	4	562	145	5	20	6	1	14	93	3	4	199	41
20	NORTH-WEST CONNECTION	Rural	0.040	560	3	432	126	4	17	5	1	12	81	3	4	22	5
20	NORTH LIMITS OF OWASA	Rural	3.084	8600	42	6569	1990	45	187	54	6	202	1391	46	60	26522	6137
20	EAST LIMITS OF OWASA	Municipal	0.725	8500	41	6497	1962	45	185	53	6	199	1372	45	58	6163	1422
20	CO RD D35 INTERCHANGE	Rural	2.786	8600	42	6569	1990	45	187	54	6	202	1391	46	60	23960	5544
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.273	60	0	52	7	0	1	0	0	1	4	0	0	16	2
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.258	80	0	73	7	0	1	0	0	1	4	0	0	21	2
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.273	540	3	512	24	1	6	2	0	2	12	0	0	147	7
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.285	410	2	386	21	1	6	2	0	1	10	0	0	117	6
20	CO RD S56 INTERCHANGE	Rural	5.663	7800	37	5804	1959	43	178	51	6	200	1377	46	59	44171	11094
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.303	520	3	470	47	2	9	3	0	4	27	1	1	158	14
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.302	160	1	115	45	2	6	2	0	4	29	1	1	48	14
20	NORTH-WEST SOUTH-WEST LOOP	Rural	0.192	190	1	144	45	2	8	2	0	4	27	1	1	36	9
20	NORTH-EAST SOUTH-EAST LOOP	Rural	0.191	410	2	363	45	2	9	3	0	4	25	1	1	78	9
20	WEST LINE OF GRUNDY COUNTY	Rural	2.616	8300	40	6299	1961	44	182	52	6	199	1374	45	58	21713	5130
	ROUTE SUMMARY - RURAL		28.651	7051												202009	47839
	ROUTE SUMMARY - MUNICIPAL		0.725	8500												6163	1422