Iowa DOT

Volume of Traffic on the Primary Road System

Route	2011	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2011				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	9100	43	7568	1489	68	292	85	9	122	852	26	34	4232	692
20	IA 136 INTERCHANGE	Municipal	0.403	8900	42	7397	1461	67	286	84	9	120	836	26	34	3587	589
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.335	2100	11	1919	170	17	72	21	2	7	48	1	1	704	57
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.329	1850	9	1672	168	8	35	10	1	13	94	3	4	609	55
20	NORTH-WEST SOUTH-WEST LOOP	Municipal	0.218	2060	11	1941	108	11	46	13	1	4	30	1	1	449	24
20	NORTH-EAST SOUTH-EAST LOOP	Municipal	0.211	2030	10	1835	184	12	49	14	2	13	88	3	4	428	39
20	EAST LIMITS OF DYERSVILLE	Municipal	0.363	9200	43	7564	1592	73	312	91	10	131	911	28	36	3340	578
20	INTERSECTION WUCHTER ROAD	Rural	1.541	9400	44	7733	1623	74	318	93	10	133	929	28	36	14485	2501
20	WEST LIMITS OF FARLEY	Rural	3.000	11600	56	9920	1623	74	318	93	10	133	929	28	36	34800	4869
20	INTERSECTION OLDE CASTLE ROAD	Municipal	0.236	11300	54	9653	1592	73	312	91	10	131	911	28	36	2667	376
20	1ST STREET INTERCHANGE	Municipal	1.026	10700	51	9056	1592	73	312	91	10	131	911	28	36	10978	1633
20	EAST-SOUTH WEST-SOUTH RAMP *	Municipal	0.230	1040	5	970	65	8	33	10	1	2	11	0	0	239	15
20	NORTH-EAST SOUTH-EAST RAMP *	Municipal	0.218	1030	6	978	47	5	22	7	1	1	10	0	0	225	10
20	WEST-NORTH WEST-SOUTH RAMP *	Municipal	0.280	540	3	489	49	6	24	7	1	1	10	0	0	151	14
20	NORTH-WEST SOUTH-WEST RAMP *	Municipal	0.193	510	3	462	46	5	22	7	1	1	9	0	0	98	9
20	EAST LIMITS OF FARLEY	Municipal	0.540	11800	57	10132	1610	82	350	102	11	126	877	27	35	6372	869
20	CENTER AVENUE INTCHG (EPWORTH)	Rural	3.271	12100	59	10400	1640	83	356	104	11	128	894	27	35	39579	5364
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.267	1040	5	934	101	11	48	14	2	3	21	1	1	278	27
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.317	1140	5	909	226	31	131	38	4	3	18	1	1	361	72
20	WEST-NORTH WEST-SOUTH RAMP *	Rural	0.261	430	2	398	30	2	7	2	0	2	16	0	0	112	8
20	NORTH-WEST SOUTH-WEST RAMP *	Rural	0.280	450	2	403	44	4	16	5	1	2	16	0	0	126	12
20	CO RD Y21 INTERCHANGE (PEOSTA)	Rural	4.175	12900	63	11196	1640	83	356	104	11	128	894	27	35	53858	6847
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.267	2440	13	2271	156	10	42	12	1	11	75	2	3	651	42
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	2500	13	2329	157	12	52	15	2	9	63	2	2	653	41
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.267	1170	6	1020	145	10	44	13	1	9	63	2	2	312	39
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	1380	7	1248	125	8	33	10	1	9	61	2	2	368	33
20	JUNCTION THUNDER HILLS ROAD	Rural	1.497	15300	77	13681	1541	85	363	106	11	115	803	25	32	22904	2307
20	JUNCTION CO RD D29	Rural	2.370	17200	88	15570	1541	85	363	106	11	115	803	25	32	40764	3652
20	WEST LIMITS OF DUBUQUE	Rural	1.200	18900	97	17260	1541	85	363	106	11	115	803	25	32	22680	1849
20	JUNCTION OLD HIGHWAY RD	Municipal	2.128	19800	102	18182	1513	83	357	104	11	113	788	24	31	42134	3220
20	JUNCTION IA 32	Municipal	0.424	23500	59	21716	1726	65	571	113	20	135	658	68	97	9964	732
20	JUNCTION CRESCENT RIDGE	Municipal	0.364	26300	66	24243	1991	74	653	129	23	157	764	79	112	9573	725
20	JUNCTION MERCER DR & WACKER DR	Municipal	0.618	28500	72	26437	1991	74	653	129	23	157	764	79	112	17613	1230
20	INTERSECTION CEDAR CROSS ROAD	Municipal	0.297	28400	71	26337	1991	74	653	129	23	157	764	79	112	8435	591
20	JUNCTION DEVON DRIVE	Municipal	0.684	35600	91	33489	2021	76	675	134	24	157	764	79	112	24350	1382
20	FREMONT AVENUE INTERCHANGE	Municipal	0.658	30100	76	28003	2021	76	675	134	24	157	764	79	112	19806	1330
20	GRANDVIEW AVENUE INTERCHANGE	Municipal	0.126	35100	90	33305	1704	57	505	100	18	145	704	72	103	4423	215
20	N-E S-E W-E RAMP	Municipal	0.145	3190	8	3117	65	5	46	9	2	0	2	0	0	463	9
20	N-E S-E W-E RAMP CONN	Municipal	0.146	5600	15	5483	102	8	73	14	3	1	3	0	0	818	15
20	W-N W-S W-E RAMP	Municipal	0.192	3160	8	3095	57	4	39	8	1	1	3	0	0	607	11
20	N-W S-W E-W RAMP	Municipal	0.143	3180	8	3099	72	5	46	9	2	1	7	1	1	455	10
20	N-W S-W E-W RAMP CONN	Municipal	0.104	5200	14	5079	107	8	72	14	3	1	7	1	1	541	11
20	E-N E-S E-W RAMP	Municipal	0.199	2770	7	2697	65	5	40	8	1	2	8	1	1	551	13
20	HILL ST & BRYANT ST INTERCHANGE	Municipal	0.445	34800	89	33040	1670	54	480	95	17	145	704	72	103	15486	743
20	W-N W-S N-E S-E LOOP	Municipal	0.081	3880	10	3739	131	11	97	19	3	0	1	0	0	314	11
20	N-W S-W E-N E-S LOOP S PT	Municipal	0.042	3650	10	3593	48	4	32	6	1	1	3	0	0	153	2
20	N-W S-W E-N E-S LOOP N PT	Municipal	0.056	3860	10	3793	57	4	39	8	1	1	3	0	0	216	3
20	JUNCTION BLUFF STREET	Municipal	0.605	36400	92	33930	2378	105	927	183	33	160	777	80	114	22022	1439
20	INTERSECTION IA 946	Municipal	0.088	32900	82	30440	2378	105	927	183	33	160	777	80	114	2895	209
20	EAST LIMITS OF DUBUQUE AT
20	ILLINOIS STATE LINE	Municipal	0.500	18800	47	17278	1476	63	556	110	20	103	500	51	73	9400	738
	ROUTE SUMMARY - RURAL		19.706	11984												236163	28355
	ROUTE SUMMARY - MUNICIPAL		12.627	17428												220066	16907