Iowa DOT

Volume of Traffic on the Primary Road System

Route	2015	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2015				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	8600	35	6631	1933	42	206	45	5	157	1350	54	74	33875	7614
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.242	210	1	113	97	3	14	3	0	7	64	3	4	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	220	1	121	99	3	15	3	0	7	64	3	4	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.242	260	1	218	41	0	2	0	0	4	31	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.261	260	1	215	44	1	3	1	0	4	32	1	1	0	0
20	US 65 INTERCHANGE	Rural	6.370	8500	34	6423	2043	47	229	50	5	164	1414	57	78	54145	13014
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.296	870	3	637	229	4	18	4	0	19	168	7	9	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.251	940	4	688	248	5	24	5	1	20	176	7	9	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.243	580	2	439	139	5	24	5	1	10	86	3	4	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.280	650	3	510	137	4	19	4	0	11	91	4	5	0	0
20	NORTH-WEST CONNECTION	Rural	0.040	600	3	484	113	3	14	3	0	9	77	3	4	0	0
20	NORTH LIMITS OF OWASA	Rural	3.084	9100	36	6819	2245	47	229	50	5	183	1580	64	87	28064	6924
20	EAST LIMITS OF OWASA	Municipal	0.725	9100	36	6819	2245	47	229	50	5	183	1580	64	87	6598	1628
20	CO RD D35 INTERCHANGE	Rural	2.786	9100	36	6819	2245	47	229	50	5	183	1580	64	87	25353	6255
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	530	3	511	16	1	3	1	0	1	9	0	0	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.285	470	2	455	12	0	1	0	0	1	8	0	0	0	0
20	CO RD S56 INTERCHANGE	Rural	5.663	8300	32	6043	2225	46	227	50	5	182	1566	63	86	47003	12600
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.303	560	2	463	95	4	21	5	0	6	54	2	3	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.302	210	1	177	32	1	5	1	0	2	21	1	1	0	0
20	NORTH-WEST SOUTH-WEST LOOP	Rural	0.192	190	1	159	31	1	4	1	0	2	21	1	1	0	0
20	NORTH-EAST SOUTH-EAST LOOP	Rural	0.191	540	2	435	103	5	22	5	1	7	59	2	3	0	0
20	WEST LINE OF GRUNDY COUNTY	Rural	2.616	8900	35	6507	2359	53	260	57	6	190	1637	66	90	23282	6171
	ROUTE SUMMARY - RURAL		28.651	7452												211722	52578
	ROUTE SUMMARY - MUNICIPAL		0.725	9100												6598	1628