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	97 Woodbury COUNTY
20	DUPLICATE ROUTE WITH I 129 I 29 & I 129/US75 INTERCHANGE TO LAKEPORT STREET INTERCHANGE AT
20	EAST LIMITS OF SIOUX CITY	Municipal	1.455	32700	92	29690	2917	122	528	101	7	180	1858	44	76	47579	4244
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.195	3970	19	3874	77	7	37	8	1	2	20	1	1	0	0
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.065	3970	19	3874	77	7	37	8	1	2	20	1	1	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.186	4340	21	4233	86	8	42	9	1	2	21	1	1	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.128	4340	21	4233	86	8	42	9	1	2	21	1	1	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.373	7300	35	7160	105	11	57	12	1	2	20	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.280	6700	32	6553	115	13	67	14	2	2	16	1	1	0	0
20	SOUTH LIMITS OF SIOUX CITY	Rural	0.345	27000	118	24029	2852	95	485	102	12	197	1776	76	108	9315	984
20	SUNNYBROOK DRIVE INTERCHANGE	Municipal	0.773	27000	118	24029	2852	95	485	102	12	197	1776	76	108	20871	2205
20	EAST-NORTH WEST-NORTH RAMP	Municipal	0.199	3720	18	3635	68	8	42	9	1	1	7	0	0	0	0
20	SOUTH-EAST SOUTH-WEST RAMP	Municipal	0.199	2280	11	2232	37	3	17	4	0	1	11	0	0	0	0
20	EAST-SOUTH WEST-SOUTH RAMP	Municipal	0.230	1770	8	1718	44	3	16	3	0	2	17	1	1	0	0
20	NORTH-EAST NORTH-WEST RAMP	Municipal	0.218	3620	17	3530	73	8	42	9	1	1	11	0	0	0	0
20	MORNINGSIDE AVENUE INTERCHANGE	Municipal	0.548	30300	134	27247	2919	105	536	113	13	197	1771	76	108	16604	1600
20	EAST-NORTH WEST-NORTH RAMP	Municipal	0.149	900	4	875	21	2	10	2	0	1	5	0	0	0	0
20	SOUTH-EAST SOUTH-WEST RAMP	Municipal	0.167	2800	13	2739	48	5	26	5	1	1	9	0	0	0	0
20	EAST-SOUTH WEST-SOUTH RAMP	Municipal	0.199	2890	14	2817	59	8	39	8	1	0	2	0	0	0	0
20	NORTH-EAST NORTH-WEST RAMP	Municipal	0.274	1110	5	1056	49	5	24	5	1	1	12	0	0	0	0
20	EAST LIMITS OF SIOUX CITY	Municipal	0.495	26600	116	23602	2882	99	506	107	12	197	1776	76	108	13167	1427
20	US 75 & IA 12 INTERCHANGE	Rural	0.627	26900	118	23866	2916	100	511	108	13	200	1797	77	110	16866	1828
20	EAST-NORTH WEST-NORTH RAMP	Rural	0.423	2010	9	1864	137	5	23	5	1	10	86	4	5	0	0
20	SOUTH-EAST RAMP	Rural	0.528	2800	12	2441	347	12	61	13	2	24	213	9	13	0	0
20	WEST-SOUTH RAMP	Rural	0.342	3040	14	2888	137	13	66	14	2	4	35	2	3	0	0
20	NORTH-EAST NORTH-WEST RAMP	Rural	0.360	2190	10	1960	220	17	85	18	2	9	81	3	4	0	0
20	SOUTH-WEST LOOP	Rural	0.263	2110	10	2014	86	5	24	5	1	5	43	2	3	0	0
20	EAST-SOUTH LOOP	Rural	0.211	3060	13	2635	412	16	81	17	2	27	244	10	15	0	0
20	INTERSECTION CHARLES AVENUE	Rural	3.629	11200	49	9938	1213	51	259	55	6	77	694	30	43	40645	4402
20	EAST JUNCTION CO RD K42	Rural	2.005	10200	45	9141	1014	29	147	31	4	74	662	28	40	20451	2033
20	JUNCTION CEDAR STREET AT
20	WEST LIMITS OF LAWTON	Rural	1.518	10100	45	9042	1014	29	147	31	4	74	662	28	40	15332	1539
20	EAST LIMITS OF LAWTON	Municipal	0.252	8600	37	7559	1003	28	145	31	4	73	654	28	40	2167	253
20	JUNCTION IA 140 & CO RD K64	Rural	5.460	7500	32	6454	1014	29	147	31	4	74	662	28	40	40950	5536
20	JUNCTION CO RD D22	Rural	2.980	5000	20	4083	897	20	101	21	2	69	620	27	38	14900	2673
20	WEST JCT IA 31 & OSCEOLA AVENUE	Rural	11.585	4440	17	3526	897	20	101	21	2	69	620	27	38	51437	10392
20	WEST LIMITS OF CORRECTIONVILLE	Rural	0.252	4680	18	3632	1030	24	122	26	3	78	704	30	43	1179	260
20	EAST JCT IA 31 & DRIFTWOOD ST	Municipal	0.002	4680	18	3632	1030	24	122	26	3	78	704	30	43	9	2
20	EAST LIMITS OF CORRECTIONVILLE	Municipal	0.056	4800	19	3840	941	28	143	30	3	67	607	26	37	269	53
20	WEST LIMITS OF CORRECTIONVILLE	Rural	0.068	4800	19	3840	941	28	143	30	3	67	607	26	37	326	64
20	INTERSECTION HACKBERRY ST AT
20	EAST LIMITS OF CORRECTIONVILLE	Municipal	0.124	4800	19	3840	941	28	143	30	3	67	607	26	37	595	117
20	EAST JUNCTION CO RD L43	Rural	5.639	3600	13	2646	941	28	143	30	3	67	607	26	37	20300	5306
20	WEST LINE OF IDA COUNTY	Rural	0.221	2850	9	1899	941	28	143	30	3	67	607	26	37	630	208
	ROUTE SUMMARY - RURAL		36.707	6504												232331	35225
	ROUTE SUMMARY - MUNICIPAL		6.316	17584												101261	9901