Iowa DOT

Volume of Traffic on the Primary Road System

Route	2009	Rural/Municipal	Section length (miles)	Annual average daily traffic	Vehicle classification distribution of annual average daily traffic											Average daily vehicle miles
	2009				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
21	7 Black Hawk COUNTY
21	INTERSECTION CO RD D46	Rural	3.007	1500	17	1337	146	9	37	13	2	20	59	4	2	4511	439
21	INTERSECTION CO RD D35	Rural	4.039	1890	21	1686	183	14	59	22	3	20	59	4	2	7634	739
21	SOUTH LIMITS OF WATERLOO	Rural	1.502	2640	31	2426	183	14	59	22	3	20	59	4	2	3965	275
21	INTERSECTION EAST ORANGE ROAD	Municipal	0.505	2640	31	2426	183	14	59	22	3	20	59	4	2	1333	92
21	US 20 INTERCHANGE *	Municipal	1.822	4940	49	4663	227	16	80	42	4	15	64	5	2	9001	414
	ROUTE SUMMARY - RURAL		8.548	1885												16110	1453
	ROUTE SUMMARY - MUNICIPAL		2.327	4441												10334	506