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	40 Hamilton COUNTY
20	IA 17 & CO RD R21 WEST INTCHG	Rural	1.399	8500	44	6989	1467	40	163	47	5	144	993	33	43	11892	2052
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.311	570	2	373	195	5	20	6	1	19	134	4	5	177	61
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.329	650	3	447	200	3	13	4	0	21	147	5	6	214	66
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.298	300	2	248	50	2	10	3	0	4	29	1	1	89	15
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.298	390	2	341	47	3	13	4	0	3	22	1	1	116	14
20	WEST LIMITS OF WEBSTER CITY	Rural	2.789	9000	44	6922	2034	52	213	61	7	202	1394	46	60	25101	5673
20	EAST LIMITS OF WEBSTER CITY	Municipal	0.248	8900	43	6850	2006	51	211	60	7	199	1374	45	58	2207	497
20	WEST LIMITS OF WEBSTER CITY	Rural	0.505	9000	44	6922	2034	52	213	61	7	202	1394	46	60	4545	1027
20	IA 17 & SUPERIOR ST EAST INTCHG	Municipal	1.006	8900	43	6850	2006	51	211	60	7	199	1374	45	58	8953	2018
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.348	1050	6	915	129	7	30	9	1	10	67	2	2	365	45
20	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.267	1030	6	906	119	6	24	7	1	10	67	2	2	275	32
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.373	1320	7	1145	167	6	26	7	1	15	104	3	4	492	62
20	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.292	1370	8	1203	160	6	26	7	1	14	98	3	4	400	47
20	EAST LIMITS OF WEBSTER CITY	Municipal	1.243	8300	40	6333	1927	52	213	61	7	189	1306	43	55	10317	2395
20	CO RD R38 INTERCHANGE	Rural	3.723	8400	41	6406	1954	53	216	62	7	192	1325	44	56	31273	7275
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.230	60	0	43	17	1	3	1	0	2	11	0	0	14	4
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.329	90	1	85	4	0	1	0	0	0	2	0	0	30	1
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.249	110	1	98	11	1	6	2	0	0	2	0	0	27	3
20	NORTH-EAST SOUTH-EAST LOOP	Rural	0.199	60	0	45	15	0	1	0	0	2	11	0	0	12	3
20	US 69 INTERCHANGE	Rural	4.009	8300	40	6290	1971	52	213	61	7	195	1342	44	56	33275	7902
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.280	130	1	104	25	1	4	1	0	2	15	0	0	36	7
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.267	240	1	167	72	1	6	2	0	7	52	2	2	64	19
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.298	320	2	275	43	2	9	3	0	3	24	1	1	95	13
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	320	2	271	47	3	12	3	0	3	24	1	1	85	13
20	I 35 INTERCHANGE	Rural	3.635	8100	39	6084	1977	49	203	58	6	197	1360	45	57	29444	7186
20	CO RD R77 INTERCHANGE	Rural	2.453	8200	40	6298	1862	43	179	51	6	188	1297	43	55	20115	4567
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.298	50	0	38	11	1	6	2	0	0	2	0	0	15	3
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.267	45	0	34	11	1	3	1	0	1	6	0	0	12	3
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.311	45	0	32	13	0	1	0	0	1	10	0	0	14	4
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	45	0	34	11	0	1	0	0	1	8	0	0	12	3
20	WEST LINE OF HARDIN COUNTY	Rural	2.977	8200	40	6300	1860	45	186	53	6	187	1286	43	55	24411	5537
	ROUTE SUMMARY - RURAL		25.988	6967												181068	41451
	ROUTE SUMMARY - MUNICIPAL		3.777	6092												23009	5096