Iowa DOT

Volume of Traffic on the Primary Road System

Route	2012	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2012				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	29800	62	26845	2893	162	593	165	6	184	1719	23	40	43359	4209
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.195	4235	26	4121	88	10	42	12	1	3	18	1	1	826	17
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.065	4235	26	4121	88	10	42	12	1	3	18	1	1	275	6
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.186	3986	25	3902	59	7	28	8	1	2	12	0	0	741	11
20	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.128	3986	25	3902	59	7	28	8	1	2	12	0	0	510	8
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.373	8166	51	8042	73	10	40	12	1	1	8	0	0	3046	27
20	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.280	6360	40	6231	89	10	41	12	1	3	20	1	1	1781	25
20	SOUTH LIMITS OF SIOUX CITY	Rural	0.345	23500	130	20492	2878	142	582	167	18	234	1613	53	68	8108	993
20	SUNNYBROOK DRIVE INTERCHANGE	Municipal	0.773	23500	130	20492	2878	142	582	167	18	234	1613	53	68	18166	2225
20	EAST-NORTH WEST-NORTH RAMP	Municipal	0.199	3170	20	3114	37	5	22	6	1	0	2	0	0	631	7
20	SOUTH-EAST SOUTH-WEST RAMP	Municipal	0.199	1670	10	1633	27	2	10	3	0	1	10	0	0	332	5
20	EAST-SOUTH WEST-SOUTH RAMP	Municipal	0.230	1460	9	1425	26	3	11	3	0	1	7	0	0	336	6
20	NORTH-EAST NORTH-WEST RAMP	Municipal	0.218	3170	20	3128	22	3	13	4	0	0	2	0	0	691	5
20	MORNINGSIDE AVENUE INTERCHANGE	Municipal	0.548	26700	150	23665	2884	145	596	171	19	232	1600	53	68	14632	1580
20	EAST-NORTH WEST-NORTH RAMP	Municipal	0.149	890	5	856	28	3	12	3	0	1	7	0	0	133	4
20	SOUTH-EAST SOUTH-WEST RAMP	Municipal	0.167	2220	14	2166	40	4	18	5	1	1	10	0	0	371	7
20	EAST-SOUTH WEST-SOUTH RAMP	Municipal	0.199	2740	17	2663	61	7	28	8	1	2	14	0	0	545	12
20	NORTH-EAST NORTH-WEST RAMP	Municipal	0.274	1200	7	1153	40	4	17	5	1	2	11	0	0	329	11
20	EAST LIMITS OF SIOUX CITY	Municipal	0.495	23800	132	20817	2851	141	579	166	18	231	1595	53	68	11781	1411
20	US 75 & IA 12 INTERCHANGE	Rural	0.627	24100	134	21075	2891	143	588	168	18	235	1617	53	68	15111	1813
20	EAST-NORTH WEST-NORTH RAMP	Rural	0.423	1880	11	1761	108	5	22	6	1	9	61	2	2	795	46
20	SOUTH-EAST RAMP	Rural	0.528	2730	15	2291	425	18	74	21	2	37	254	8	11	1441	224
20	WEST-SOUTH RAMP	Rural	0.342	2980	18	2781	181	17	68	19	2	9	61	2	2	1019	62
20	NORTH-EAST NORTH-WEST RAMP	Rural	0.360	2060	12	1907	141	13	53	15	2	7	48	2	2	742	51
20	SOUTH-WEST LOOP	Rural	0.263	1770	11	1675	84	6	24	7	1	5	38	1	1	466	22
20	EAST-SOUTH LOOP	Rural	0.211	2450	13	2084	353	14	56	16	2	32	218	7	9	517	74
20	INTERSECTION CHARLES AVENUE	Rural	3.629	11000	62	9812	1126	61	251	72	8	87	602	20	26	39919	4086
20	EAST JUNCTION CO RD K42	Rural	2.005	10200	58	9090	1052	49	203	58	6	87	602	20	26	20451	2109
20	JUNCTION CEDAR STREET AT
20	WEST LIMITS OF LAWTON	Rural	1.518	9600	54	8550	996	41	167	48	5	87	602	20	26	14573	1512
20	EAST LIMITS OF LAWTON	Municipal	0.252	7900	44	6873	983	40	165	47	5	86	594	20	26	1991	248
20	JUNCTION IA 140 & CO RD K64	Rural	5.460	8000	44	6960	996	41	167	48	5	87	602	20	26	43680	5438
20	JUNCTION CO RD D22	Rural	2.980	4720	24	3835	861	27	110	31	3	82	565	19	24	14066	2566
20	JUNCTION CO RD L36	Rural	11.585	4130	21	3249	861	27	110	31	3	82	565	19	24	47846	9975
20	INTERSECTION IA 31	Rural	0.254	4070	20	3189	861	27	110	31	3	82	565	19	24	1034	219
20	WEST LIMITS OF CORRECTIONVILLE	Rural	0.124	3510	17	2724	769	20	82	23	3	76	525	17	22	435	95
20	INTERSECTION HACKBERRY ST AT
20	EAST LIMITS OF CORRECTIONVILLE	Municipal	0.124	3200	15	2427	758	20	81	23	3	75	518	17	22	397	94
20	EAST JUNCTION CO RD L43	Rural	5.639	3130	15	2347	769	20	82	23	3	76	525	17	22	17650	4336
20	WEST LINE OF IDA COUNTY	Rural	0.221	3010	14	2227	769	20	82	23	3	76	525	17	22	665	170
	ROUTE SUMMARY - RURAL		36.765	6243												229534	33808
	ROUTE SUMMARY - MUNICIPAL		6.258	15956												99857	9901