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	31 Dubuque COUNTY
20	WEST LIMITS OF DYERSVILLE	Rural	0.465	9200	40	7510	1650	60	293	64	7	117	1012	41	56	4278	767
20	IA 136 INTERCHANGE	Municipal	0.403	12700	59	11070	1571	57	279	61	6	112	964	39	53	5118	633
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.345	2590	13	2381	196	11	56	12	1	11	95	4	5	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.329	2480	12	2183	286	20	100	22	2	14	116	5	6	0	0
20	NORTH-WEST SOUTH-WEST LOOP	Municipal	0.218	2450	12	2240	198	10	48	11	1	12	106	4	5	0	0
20	NORTH-EAST SOUTH-EAST LOOP	Municipal	0.211	2020	10	1857	153	7	35	8	1	10	85	3	4	0	0
20	EAST LIMITS OF DYERSVILLE	Municipal	0.854	12400	56	10592	1751	71	348	77	8	119	1030	41	56	10590	1495
20	INTERSECTION WUCHTER ROAD	Rural	1.050	13000	59	11101	1840	75	366	81	8	125	1082	43	59	13650	1932
20	WEST LIMITS OF FARLEY	Rural	3.000	12000	54	10106	1840	75	366	81	8	125	1082	43	59	36000	5520
20	INTERSECTION OLDE CASTLE ROAD	Municipal	0.236	11500	52	9698	1751	71	348	77	8	119	1030	41	56	2714	413
20	1ST STREET INTERCHANGE	Municipal	1.026	10200	45	8404	1751	71	348	77	8	119	1030	41	56	10465	1797
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.230	1280	6	1210	63	6	30	7	1	2	17	1	1	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Municipal	0.218	1200	6	1147	47	3	17	4	0	2	19	1	1	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.280	670	3	597	70	5	26	6	1	3	26	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Municipal	0.193	720	3	645	72	5	26	6	1	3	28	1	1	0	0
20	EAST LIMITS OF FARLEY	Municipal	0.540	11400	51	9578	1771	70	344	76	8	122	1052	42	57	6156	956
20	CENTER AVENUE INTCHG (EPWORTH)	Rural	3.271	12900	59	10981	1860	74	361	79	8	128	1105	44	60	42196	6084
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.267	1480	8	1428	44	5	24	5	1	1	7	0	0	0	0
20	NORTH-EAST-SOUTH-EAST RAMP	Rural	0.263	1260	6	1202	51	6	28	6	1	1	9	0	0	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.261	640	3	595	41	4	17	4	0	2	13	1	1	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.237	640	3	583	54	5	27	6	1	1	12	0	0	0	0
20	CO RD Y21 INTERCHANGE (PEOSTA)	Rural	4.175	13800	65	12109	1626	69	337	74	8	109	940	38	52	57615	6789
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.267	3480	17	3276	186	13	65	14	1	9	76	3	4	0	0
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	3790	19	3582	189	14	67	15	2	9	76	3	4	0	0
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.267	1350	6	1150	194	11	55	12	1	11	94	4	5	0	0
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	1760	8	1516	236	15	71	16	2	13	110	4	5	0	0
20	JUNCTION THUNDER HILLS ROAD	Rural	1.497	18300	86	16152	2062	114	559	123	13	120	1035	42	57	27395	3087
20	JUNCTION CO RD D29	Rural	2.370	20900	100	18738	2062	114	559	123	13	120	1035	42	57	49533	4887
20	WEST LIMITS OF DUBUQUE	Rural	1.171	20800	99	18639	2062	114	559	123	13	120	1035	42	57	24357	2415
20	JUNCTION OLD HIGHWAY RD	Municipal	2.157	21900	106	19832	1962	108	532	117	12	114	984	40	55	47238	4232
20	JUNCTION IA 32	Municipal	0.424	26100	87	24060	1953	57	605	90	9	119	885	79	108	11066	828
20	JUNCTION CRESCENT RIDGE	Municipal	0.364	30300	101	28001	2198	64	686	102	10	133	992	89	121	11029	800
20	JUNCTION MERCER DR & WACKER DR	Municipal	0.618	31100	104	28797	2198	64	686	102	10	133	992	89	121	19220	1358
20	INTERSECTION CEDAR CROSS ROAD	Municipal	0.297	29000	96	26706	2198	64	686	102	10	133	992	89	121	8613	653
20	JUNCTION DEVON DRIVE	Municipal	0.684	37500	127	35175	2198	64	686	102	10	133	992	89	121	25650	1503
20	FREMONT AVENUE INTERCHANGE	Municipal	0.658	38000	129	35673	2198	64	686	102	10	133	992	89	121	25004	1446
20	GRANDVIEW AVENUE INTERCHANGE	Municipal	0.305	36700	124	34252	2324	66	705	105	10	144	1068	96	130	11194	709
20	N-E S-E W-E RAMP	Municipal	0.145	2930	10	2833	87	6	68	10	1	0	1	0	0	0	0
20	N-E S-E W-E RAMP CONN	Municipal	0.146	5600	20	5457	123	9	96	14	1	0	1	0	0	0	0
20	W-N W-S W-E RAMP	Municipal	0.192	3400	12	3259	130	10	102	15	2	0	1	0	0	0	0
20	N-W S-W E-W RAMP	Municipal	0.143	3400	12	3306	82	6	60	9	1	1	4	0	0	0	0
20	N-W S-W E-W RAMP CONN	Municipal	0.104	5100	18	4948	134	10	102	15	2	1	4	0	0	0	0
20	E-N E-S E-W RAMP	Municipal	0.199	2810	10	2721	79	6	59	9	1	0	4	0	0	0	0
20	HILL ST & BRYANT ST INTERCHANGE	Municipal	0.266	36700	124	34246	2330	66	709	106	11	144	1068	96	130	9762	620
20	W-N W-S N-E S-E LOOP	Municipal	0.081	4200	15	4089	96	7	72	11	1	1	4	0	0	0	0
20	N-W S-W E-N E-S LOOP S PT	Municipal	0.042	4360	15	4285	59	4	43	6	1	0	4	0	0	0	0
20	N-W S-W E-N E-S LOOP N PT	Municipal	0.056	4510	16	4427	67	4	47	7	1	1	6	1	1	0	0
20	JUNCTION BLUFF STREET	Municipal	0.605	39000	132	36637	2230	64	686	102	10	137	1016	91	124	23595	1349
20	INTERSECTION IA 946	Municipal	0.088	28500	95	26176	2230	64	686	102	10	137	1016	91	124	2508	196
20	EAST LIMITS OF DUBUQUE AT
20	ILLINOIS STATE LINE	Municipal	0.486	17800	60	16523	1217	33	348	52	5	78	579	52	71	8651	591
	ROUTE SUMMARY - RURAL		19.089	13558												255024	31481
	ROUTE SUMMARY - MUNICIPAL		13.143	18746												238573	19579