Iowa DOT

Volume of Traffic on the Primary Road System

Route	2011	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2011				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	8100	35	6228	1836	43	184	54	6	183	1277	39	51	31906	7232
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.242	500	2	421	77	1	6	2	0	8	56	2	2	121	19
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	250	1	174	75	3	12	4	0	7	46	1	1	65	20
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.242	240	1	195	43	2	7	2	0	4	26	1	1	58	10
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.261	260	1	221	38	2	7	2	0	3	22	1	1	68	10
20	US 65 INTERCHANGE	Rural	6.370	8000	34	6058	1907	44	187	55	6	191	1330	41	53	50960	12148
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.296	710	3	522	185	4	15	5	0	19	133	4	5	210	55
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.251	980	5	813	162	3	14	4	0	17	115	4	5	246	41
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.243	520	2	371	146	3	12	4	0	15	105	3	4	126	35
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.280	700	3	553	144	5	20	6	1	13	93	3	4	196	40
20	NORTH-WEST CONNECTION	Rural	0.040	550	2	422	125	4	17	5	1	12	81	2	3	22	5
20	NORTH LIMITS OF OWASA	Rural	3.084	8500	37	6499	1964	43	185	54	6	198	1381	42	55	26214	6057
20	EAST LIMITS OF OWASA	Municipal	0.725	8500	37	6499	1964	43	185	54	6	198	1381	42	55	6163	1424
20	CO RD D35 INTERCHANGE	Rural	2.786	8500	37	6499	1964	43	185	54	6	198	1381	42	55	23681	5472
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	530	3	503	24	1	6	2	0	2	12	0	0	145	7
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.285	400	2	377	21	1	6	2	0	1	10	0	0	114	6
20	CO RD S56 INTERCHANGE	Rural	5.663	7700	32	5734	1933	41	176	51	6	196	1367	42	54	43605	10947
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.303	510	3	461	47	2	9	3	0	4	27	1	1	155	14
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.302	160	1	115	45	1	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	400	2	353	45	2	9	3	0	4	26	1	1	76	9
20	WEST LINE OF GRUNDY COUNTY	Rural	2.616	8200	35	6229	1935	42	180	53	6	196	1363	42	54	21451	5062
	ROUTE SUMMARY - RURAL		28.651	6965												199540	47216
	ROUTE SUMMARY - MUNICIPAL		0.725	8500												6163	1424