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	31 Dubuque COUNTY
20	WEST LIMITS OF DYERSVILLE	Rural	0.465	9200	48	7644	1508	72	295	85	9	124	858	28	36	4278	701
20	IA 136 INTERCHANGE	Municipal	0.403	8900	47	7393	1460	69	286	82	9	120	831	27	35	3587	588
20	EAST-NORTH EAST-SOUTH RAMP	Municipal	0.335	2100	12	1917	170	17	72	21	2	7	48	2	2	704	57
20	WEST-NORTH WEST-SOUTH RAMP	Municipal	0.329	1850	11	1671	168	8	35	10	1	14	93	3	4	609	55
20	NORTH-WEST SOUTH-WEST LOOP	Municipal	0.218	2060	12	1940	108	11	45	13	1	4	30	1	1	449	24
20	NORTH-EAST SOUTH-EAST LOOP	Municipal	0.211	2030	12	1834	184	12	49	14	2	13	88	3	4	428	39
20	EAST LIMITS OF DYERSVILLE	Municipal	0.363	9200	48	7561	1591	76	311	89	10	131	905	30	38	3340	578
20	INTERSECTION WUCHTER ROAD	Rural	1.541	9500	49	7807	1644	78	321	92	10	136	936	31	39	14640	2533
20	WEST LIMITS OF FARLEY	Rural	3.000	11800	64	10092	1644	78	321	92	10	136	936	31	39	35400	4932
20	INTERSECTION OLDE CASTLE ROAD	Municipal	0.236	11300	61	9648	1591	76	311	89	10	131	905	30	38	2667	375
20	1ST STREET INTERCHANGE	Municipal	1.026	10700	57	9052	1591	76	311	89	10	131	905	30	38	10978	1632
20	EAST-SOUTH WEST-SOUTH RAMP *	Municipal	0.230	1040	6	969	65	8	33	10	1	2	11	0	0	239	15
20	NORTH-EAST SOUTH-EAST RAMP *	Municipal	0.218	1030	6	977	47	5	22	6	1	1	10	0	0	225	10
20	WEST-NORTH WEST-SOUTH RAMP *	Municipal	0.280	540	3	488	49	6	24	7	1	1	10	0	0	151	14
20	NORTH-WEST SOUTH-WEST RAMP *	Municipal	0.193	510	3	461	46	5	22	6	1	1	9	0	0	98	9
20	EAST LIMITS OF FARLEY	Municipal	0.540	11800	64	10128	1608	85	349	100	11	126	872	29	37	6372	868
20	CENTER AVENUE INTCHG (EPWORTH)	Rural	3.271	12300	67	10572	1661	88	360	103	11	131	900	30	38	40233	5433
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.267	1050	6	942	102	12	49	14	2	3	21	1	1	280	27
20	EAST-NORTH EAST-SOUTH RAMP*	Rural	0.317	1160	6	925	229	32	133	38	4	3	18	1	1	368	73
20	WEST-NORTH WEST-SOUTH RAMP *	Rural	0.261	440	3	408	30	2	7	2	0	2	16	1	1	115	8
20	NORTH-WEST SOUTH-WEST RAMP *	Rural	0.280	460	3	413	44	4	16	5	1	2	16	1	1	129	12
20	CO RD Y21 INTERCHANGE (PEOSTA)	Rural	4.175	13100	72	11367	1661	88	360	103	11	131	900	30	38	54693	6935
20	EAST-NORTH EAST-SOUTH RAMP	Rural	0.267	2470	15	2297	158	10	42	12	1	11	75	2	3	659	42
20	NORTH-EAST SOUTH-EAST RAMP	Rural	0.261	2530	15	2356	159	13	53	15	2	9	63	2	2	660	41
20	WEST-NORTH WEST-SOUTH RAMP	Rural	0.267	1190	7	1037	147	11	45	13	1	9	63	2	2	318	39
20	NORTH-WEST SOUTH-WEST RAMP	Rural	0.267	1400	8	1265	127	8	33	10	1	9	61	2	2	374	34
20	JUNCTION THUNDER HILLS ROAD	Rural	1.497	15500	88	13851	1561	89	367	105	12	117	809	27	35	23204	2337
20	JUNCTION CO RD D29	Rural	2.370	17400	100	15739	1561	89	367	105	12	117	809	27	35	41238	3700
20	WEST LIMITS OF DUBUQUE	Rural	1.200	19100	110	17428	1561	89	367	105	12	117	809	27	35	22920	1873
20	JUNCTION OLD HIGHWAY RD	Municipal	2.128	19800	115	18173	1511	86	356	102	11	114	783	26	33	42134	3215
20	JUNCTION IA 32	Municipal	0.424	23500	61	21713	1724	68	580	103	17	141	653	69	94	9964	731
20	JUNCTION CRESCENT RIDGE	Municipal	0.364	26300	68	24241	1989	77	663	118	19	164	758	80	109	9573	724
20	JUNCTION MERCER DR & WACKER DR	Municipal	0.618	28500	74	26434	1989	77	663	118	19	164	758	80	109	17613	1229
20	INTERSECTION CEDAR CROSS ROAD	Municipal	0.297	28400	74	26334	1989	77	663	118	19	164	758	80	109	8435	591
20	JUNCTION DEVON DRIVE	Municipal	0.684	35600	94	33484	2019	80	686	122	20	164	758	80	109	24350	1381
20	FREMONT AVENUE INTERCHANGE	Municipal	0.658	30100	79	28000	2019	80	686	122	20	164	758	80	109	19806	1329
20	GRANDVIEW AVENUE INTERCHANGE	Municipal	0.305	35100	94	33301	1702	60	513	91	15	151	698	74	100	10706	519
20	N-E S-E W-E RAMP	Municipal	0.145	3190	9	3116	65	5	47	8	1	0	2	0	0	463	9
20	N-E S-E W-E RAMP CONN	Municipal	0.146	5600	15	5482	102	9	74	13	2	1	3	0	0	818	15
20	W-N W-S W-E RAMP	Municipal	0.192	3160	9	3094	57	5	40	7	1	1	3	0	0	607	11
20	N-W S-W E-W RAMP	Municipal	0.143	3180	9	3099	72	5	47	8	1	1	7	1	1	455	10
20	N-W S-W E-W RAMP CONN	Municipal	0.104	5200	14	5079	107	9	73	13	2	1	7	1	1	541	11
20	E-N E-S E-W RAMP	Municipal	0.199	2770	8	2697	65	5	41	7	1	2	8	1	1	551	13
20	HILL ST & BRYANT ST INTERCHANGE	Municipal	0.266	34800	93	33036	1668	57	487	87	14	151	698	74	100	9257	444
20	W-N W-S N-E S-E LOOP	Municipal	0.081	3880	10	3738	131	11	98	17	3	0	1	0	0	314	11
20	N-W S-W E-N E-S LOOP S PT	Municipal	0.042	3650	10	3591	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	11	3792	57	5	39	7	1	1	3	0	0	216	3
20	JUNCTION BLUFF STREET	Municipal	0.605	36400	95	33925	2376	110	942	168	27	167	771	81	110	22022	1437
20	INTERSECTION IA 946	Municipal	0.088	32900	85	30435	2376	110	942	168	27	167	771	81	110	2895	209
20	EAST LIMITS OF DUBUQUE AT
20	ILLINOIS STATE LINE	Municipal	0.500	18800	49	17276	1474	66	564	101	16	107	496	52	71	9400	737
	ROUTE SUMMARY - RURAL		19.706	12154												239509	28720
	ROUTE SUMMARY - MUNICIPAL		12.627	17432												220120	16895