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	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	33000	60	30127	2813	110	478	100	4	190	1863	24	44	48015	4093
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.195	3900	20	3796	84	8	41	9	1	2	20	1	1	0	0
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.065	3900	20	3796	84	8	41	9	1	2	20	1	1	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.186	4210	22	4098	90	9	45	10	1	2	21	1	1	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.128	4210	22	4098	90	9	45	10	1	2	21	1	1	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.373	7600	40	7476	84	8	41	9	1	2	20	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.280	6900	36	6770	94	11	52	11	1	2	16	1	1	0	0
20	SOUTH LIMITS OF SIOUX CITY	Rural	0.345	26500	126	23565	2809	96	471	104	11	204	1756	71	97	9143	969
20	SUNNYBROOK DRIVE INTERCHANGE	Municipal	0.773	26500	126	23565	2809	96	471	104	11	204	1756	71	97	20485	2171
20	EAST-NORTH WEST-NORTH RAMP	Municipal	0.199	3650	19	3564	67	8	41	9	1	1	7	0	0	0	0
20	SOUTH-EAST SOUTH-WEST RAMP	Municipal	0.199	2240	12	2191	37	3	17	4	0	1	11	0	0	0	0
20	EAST-SOUTH WEST-SOUTH RAMP	Municipal	0.230	1740	9	1687	44	3	16	3	0	2	17	1	1	0	0
20	NORTH-EAST NORTH-WEST RAMP	Municipal	0.218	3560	18	3469	72	8	41	9	1	1	11	0	0	0	0
20	MORNINGSIDE AVENUE INTERCHANGE	Municipal	0.548	29800	143	26790	2867	106	521	115	12	203	1746	70	96	16330	1571
20	EAST-NORTH WEST-NORTH RAMP	Municipal	0.149	880	5	855	21	2	10	2	0	1	5	0	0	0	0
20	SOUTH-EAST SOUTH-WEST RAMP	Municipal	0.167	2750	14	2689	47	5	25	5	1	1	9	0	0	0	0
20	EAST-SOUTH WEST-SOUTH RAMP	Municipal	0.199	2840	15	2768	58	8	38	8	1	0	2	0	0	0	0
20	NORTH-EAST NORTH-WEST RAMP	Municipal	0.274	1090	6	1037	48	5	24	5	1	1	12	0	0	0	0
20	EAST LIMITS OF SIOUX CITY	Municipal	0.495	26100	123	23145	2831	100	492	108	11	203	1750	70	96	12920	1401
20	US 75 & IA 12 INTERCHANGE	Rural	0.627	26100	123	23145	2831	100	492	108	11	203	1750	70	96	16365	1775
20	EAST-NORTH WEST-NORTH RAMP	Rural	0.423	1950	10	1808	133	5	22	5	1	10	83	3	4	0	0
20	SOUTH-EAST RAMP	Rural	0.528	2720	13	2372	336	12	59	13	1	24	207	8	11	0	0
20	WEST-SOUTH RAMP	Rural	0.342	2950	15	2802	133	13	63	14	1	4	35	1	1	0	0
20	NORTH-EAST NORTH-WEST RAMP	Rural	0.360	2130	10	1906	213	16	81	18	2	9	79	3	4	0	0
20	SOUTH-WEST LOOP	Rural	0.263	2050	10	1956	83	5	23	5	1	5	41	2	2	0	0
20	EAST-SOUTH LOOP	Rural	0.211	2970	14	2557	400	16	78	17	2	27	237	10	14	0	0
20	INTERSECTION CHARLES AVENUE	Rural	3.629	10900	52	9672	1177	51	248	55	6	78	675	27	37	39556	4271
20	EAST JUNCTION CO RD K42	Rural	2.005	9900	47	8868	985	29	141	31	3	75	645	26	36	19850	1975
20	JUNCTION CEDAR STREET AT
20	WEST LIMITS OF LAWTON	Rural	1.518	9800	47	8768	985	29	141	31	3	75	645	26	36	14876	1495
20	EAST LIMITS OF LAWTON	Municipal	0.252	8400	39	7376	985	29	141	31	3	75	645	26	36	2117	248
20	JUNCTION IA 140 & CO RD K64	Rural	5.460	7300	33	6281	985	29	141	31	3	75	645	26	36	39858	5378
20	JUNCTION CO RD D22	Rural	2.980	4850	21	3958	871	20	97	21	2	70	604	24	33	14453	2596
20	WEST JCT IA 31 & OSCEOLA AVENUE	Rural	11.585	4310	18	3421	871	20	97	21	2	70	604	24	33	49931	10091
20	EAST JCT IA 31 & DRIFWOOD STREET	Rural	0.254	4540	19	3521	1000	24	117	26	3	80	686	28	38	1153	254
20	WEST LIMITS OF CORRECTIONVILLE	Rural	0.124	4660	20	3726	914	28	137	30	3	69	591	24	33	578	113
20	INTERSECTION HACKBERRY ST AT
20	EAST LIMITS OF CORRECTIONVILLE	Municipal	0.124	4660	20	3726	914	28	137	30	3	69	591	24	33	578	113
20	EAST JUNCTION CO RD L43	Rural	5.639	3490	14	2562	914	28	137	30	3	69	591	24	33	19680	5154
20	WEST LINE OF IDA COUNTY	Rural	0.221	2770	10	1846	914	28	137	30	3	69	591	24	33	612	202
	ROUTE SUMMARY - RURAL		36.765	6318												226055	34273
	ROUTE SUMMARY - MUNICIPAL		6.258	17627												100445	9597