Iowa DOT

Volume of Traffic on the Primary Road System

Route	2016	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2016				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	8900	35	7101	1764	42	215	45	5	133	1199	51	72	35057	6948
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.242	220	1	119	100	3	15	3	0	7	65	3	4	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	230	1	127	102	3	16	3	0	7	65	3	4	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.242	270	1	226	42	0	2	0	0	4	32	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.261	270	1	224	45	1	3	1	0	4	33	1	1	0	0
20	US 65 INTERCHANGE	Rural	6.370	8800	34	6889	1877	47	238	50	6	141	1264	54	77	56056	11956
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.296	900	3	671	226	4	19	4	0	18	164	7	10	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.251	970	4	761	205	5	25	5	1	15	139	6	9	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.243	600	2	440	158	5	25	5	1	11	100	4	5	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.280	670	3	516	151	4	20	4	0	11	101	4	5	0	0
20	SOUTH-WEST RAMP CONNECTION	Rural	0.065	50	0	36	14	1	5	1	0	1	6	0	0	0	0
20	NORTH-WEST RAMP CONNECTION	Rural	0.040	620	2	481	137	3	15	3	0	11	95	4	5	0	0
20	NORTH LIMITS OF OWASA	Rural	3.084	9400	36	7363	2000	47	238	50	6	152	1365	59	84	28990	6168
20	EAST LIMITS OF OWASA	Municipal	0.725	9400	36	7363	2000	47	238	50	6	152	1365	59	84	6815	1450
20	CO RD D35 INTERCHANGE	Rural	2.786	9400	36	7363	2000	47	238	50	6	152	1365	59	84	26188	5572
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.273	50	0	46	4	0	1	0	0	0	2	0	0	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.258	120	1	115	4	0	1	0	0	0	2	0	0	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.273	550	3	531	16	1	3	1	0	1	9	0	0	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.285	480	2	465	13	0	1	0	0	1	9	0	0	0	0
20	CO RD S56 INTERCHANGE	Rural	5.663	8500	32	6489	1979	46	236	50	6	150	1351	58	83	48136	11207
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.303	580	2	490	88	4	22	5	1	5	47	2	3	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.302	220	1	176	43	1	5	1	0	3	30	1	1	0	0
20	NORTH-WEST SOUTH-WEST LOOP	Rural	0.192	200	1	157	42	1	4	1	0	3	30	1	1	0	0
20	NORTH-EAST SOUTH-EAST LOOP	Rural	0.191	560	2	462	96	5	23	5	1	6	52	2	3	0	0
20	WEST LINE OF GRUNDY COUNTY	Rural	2.616	9200	35	7089	2076	53	270	57	7	155	1390	60	85	24067	5431
	ROUTE SUMMARY - RURAL		28.716	7673												218494	47282
	ROUTE SUMMARY - MUNICIPAL		0.725	9400												6815	1450