Iowa DOT

Volume of Traffic on the Primary Road System

Route	2007	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2007				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	1.400	8000	71	6735	1193	38	165	66	8	256	598	44	19	11200	1670
20	WEST LIMITS OF WEBSTER CITY	Rural	2.789	8500	68	6438	1993	34	146	58	7	488	1141	83	36	23707	5558
20	EAST LIMITS OF WEBSTER CITY	Municipal	0.248	8500	68	6438	1993	34	146	58	7	488	1141	83	36	2108	494
20	WEST LIMITS OF WEBSTER CITY	Rural	0.505	8500	68	6438	1993	34	146	58	7	488	1141	83	36	4293	1006
20	IA 17 & SUPERIOR ST EAST INTCHG	Municipal	1.005	8500	68	6438	1993	34	146	58	7	488	1141	83	36	8543	2003
20	EAST LIMITS OF WEBSTER CITY	Municipal	1.242	7900	62	5828	2010	33	145	57	7	494	1154	84	36	9812	2496
20	CO RD R38 INTERCHANGE	Rural	3.723	7900	62	5828	2010	33	145	57	7	494	1154	84	36	29412	7483
20	US 69 INTERCHANGE	Rural	4.009	7900	62	5816	2022	34	147	58	7	496	1159	84	36	31671	8106
20	I 35 INTERCHANGE	Rural	3.635	7500	57	5392	2051	31	135	53	6	510	1191	87	37	27263	7455
20	CO RD R77 INTERCHANGE	Rural	2.453	7200	56	5263	1881	27	117	46	6	471	1099	80	35	17662	4614
20	WEST LINE OF HARDIN COUNTY	Rural	2.977	7200	56	5275	1869	28	120	48	6	466	1088	79	34	21434	5564
	ROUTE SUMMARY - RURAL		21.491	7754												166642	41456
	ROUTE SUMMARY - MUNICIPAL		2.495	8201												20463	4993