Highway traffic counts, Butte County

86,000 vehicles a day on the busiest counted stretch (SR 99 at Chico, Jct. Rte. 32 East). 16,100 a day on SR 32 at Chico, On Eighth Street At Pine Street.

Annual average daily traffic (AADT) from Caltrans: vehicles per day on each side of a count point, listed by route and postmile (south to north, west to east).

Up to dateUpdated Oct 21, 2026, 8:16 AM (6 days ago)Refreshed weekly (Caltrans publishes one count year at a time)Source

DownloadJSON CSVpublic record (Caltrans)

86,000vehicles a day on the busiest counted stretch (SR 99 at Chico, Jct. Rte. 32 East)

16,100a day on SR 32 at Chico, On Eighth Street At Pine Street

29,500a day on SR 99 at Chico, Skyway Overcrossing

104count points on 6 state routes in Butte County

The records

Route	Postmile	Location	Vehicles/day before	Vehicles/day after	Peak hour	Peak month, daily
SR 32	0	Glenn/Butte County Line	—	13,500	1,400	14,100
SR 32	4.18	Meridian Road	13,300	13,300	1,400	14,100
SR 32	5.022	Muir Avenue	13,300	13,200	1,400	14,100
SR 32	6.238	East/North Lindo Ave	17,100	13,600	1,450	14,600
SR 32	6.457	West Lindo Avenue	17,000	17,200	1,600	17,800
SR 32	7.11	West Eighth Avenue	17,700	17,700	1,750	17,900
SR 32	7.79	West Sacramento Avenue	18,100	19,500	1,900	21,700
SR 32	R8.367	Chico, West First Street	22,100	18,700	1,650	20,300
SR 32	R8.655	Chico, West Fifth Street	19,600	22,100	2,000	24,300
SR 32	R8.869	Chico, On Ninth Street At Walnut Street	11,800	—	1,350	14,000
SR 32	R8.869R	Chico, On Ninth Street At Walnut Street, Begin Right Alignment	—	8,800	900	10,400
SR 32	R8.905L	Chico, On Eighth Street At Walnut Street, Begin Left Alignment	—	13,800	1,300	17,100
SR 32	R9.006R	Chico, On Ninth Street At Orange Street	9,200	8,800	900	10,400
SR 32	R9.038L	Chico, On Eighth Street At Orange Street	13,800	12,500	960	15,200
SR 32	R9.133R	Chico, On Ninth Street At Ivy Street	10,000	9,200	950	10,800
SR 32	R9.171L	Chico, On Eighth Street At Ivy Street	13,600	14,000	1,150	17,100
SR 32	9.4L	Chico, On Eighth Street At Pine Street	17,900	16,100	1,200	21,100
SR 32	9.41R	Chico, On Ninth Street At Pine Street	20,100	15,000	1,450	16,400
SR 32	9.46L	Chico, On Eighth Street At Cypress Street	16,500	17,900	1,500	23,600
SR 32	9.46R	Chico, On Ninth Street At Cypress Street	15,800	20,100	1,900	21,400
SR 32	R9.461R	Chico, On Ninth Street At Broadway	11,300	10,000	1,050	10,900
SR 32	R9.504L	Chico, On Eighth Street At Broadway	14,500	13,600	1,100	16,600
SR 32	R9.571L	Chico, On 8Th St At Main St	14,500	16,100	1,200	21,100
SR 32	R9.571R	Chico, On 9Th St At Main St	11,300	20,100	1,900	21,400
SR 32	10.187L	Chico, On Eighth Street At Fir Street	10,300	16,500	1,450	20,200
SR 32	10.187R	Chico, On Ninth Street At Fir Street	17,500	15,800	1,500	18,400
SR 32	10.735	Chico, Approximately Half Mile East Of Fir Street	—	18,700	1,750	23,100
SR 32	10.735R	Chico, Approximately Half Mile East Of Fir Street, End Right Alignment	8,100	—	750	9,400
SR 32	11.01	Chico, Forest Avenue	13,100	18,700	1,750	23,100
SR 32	11.27	Chico, El Monte Avenue	11,200	13,900	1,350	16,300
SR 32	11.704	Bruce Road	13,900	8,500	1,250	12,000
SR 32	15.211	Chico, Humbolt Road	4,050	8,500	1,200	12,000
SR 32	R23.866	Forest Ranch, Nopel Avenue	2,200	2,850	420	4,250
SR 32	R36.926	Lomo, Humbolt Road	1,800	2,000	210	2,550
SR 32	37.749	Butte/Tehama County Line	1,900	—	160	2,100
SR 70	0	Yuba/Butte County Line	—	31,500	2,750	34,500
SR 70	1.01	Lower Honcut Road	14,500	16,500	1,500	17,900
SR 70	4.06	East Gridley Road/Stimpson Lane	15,300	18,100	1,650	20,400
SR 70	9.06	Welsh/Palermo Roads	17,100	17,200	1,750	17,500
SR 70	11.531	Marysville Baggett Road	17,200	18,600	1,700	19,300
SR 70	13.901	Oroville, Jct. Rte. 162	19,500	23,800	2,150	24,900
SR 70	14.61	Oroville, Montgomery Street	24,200	30,500	2,700	31,500
SR 70	15.425	Oroville, Grand Avenue	30,500	21,500	2,000	22,400
SR 70	15.72	Oroville, Nelson Road	21,700	26,500	2,400	30,500
SR 70	16.627	Garden Drive	26,500	28,000	3,100	35,000
SR 70	20.096	Jct. Route 149	35,000	10,400	1,150	13,300
SR 70	R21.87	Jct. Route 191	6,300	2,650	310	3,250
SR 70	23.95	Coal Canyon Road	2,650	2,050	220	2,100
SR 70	26.47	Pentz Road	2,050	1,650	190	1,700
SR 70	34.01	Pinkston/Big Bend Roads	1,300	1,050	160	1,250
SR 70	48.076	Butte/Plumas County Line	1,100	—	200	1,200
SR 99	0	Sutter/Butte County Line	—	17,300	1,600	17,700
SR 99	2.79	Live Oak Gridley Road	14,000	14,800	1,250	15,300
SR 99	R3.746	Archer Avenue	14,400	14,500	1,600	17,400
SR 99	4.121	Gridley, Wilson Street	14,400	14,500	1,650	18,400
SR 99	4.38	Gridley, Spruce Street	16,200	18,300	2,650	18,900
SR 99	7.69	Biggs Highway	14,100	11,800	1,200	14,100
SR 99	11.159	Jct. Rte. 162 West	11,900	11,500	1,150	13,800
SR 99	13.161	Jct. Rte. 162 East	11,500	9,500	1,050	12,900
SR 99	16.19	Nelson Shippee Road	11,400	9,500	900	11,800
SR 99	R22.533R	Jct. Rte 149	19,100	21,300	1,900	22,200
SR 99	23.863	Pentz Road	17,200	19,800	2,200	22,100
SR 99	26.04	Neal Highway	23,800	24,600	2,550	25,500
SR 99	R30.603	Chico, Skyway Overcrossing	28,500	29,500	2,950	31,500
SR 99	R31.498	East 20Th Street	47,500	65,000	6,300	69,000
SR 99	R32.445	Chico, Jct. Rte. 32 East	65,000	86,000	8,100	90,000
SR 99	R33.282	Chico, East First Avenue	86,000	60,000	5,600	65,000
SR 99	R34.245	Chico, Cohasset Highway	60,000	49,500	4,600	53,000
SR 99	R34.927	East Avenue	26,000	36,500	4,050	47,500
SR 99	R36.305	Eaton Avenue	19,900	21,400	2,000	22,600
SR 99	38.79	Wilson Landing Road	16,200	10,100	1,150	12,300
SR 99	40.22	Keefer Road	11,600	11,900	890	13,900
SR 99	44.32	Broyles Road	15,200	15,100	1,500	17,500
SR 99	45.975	Butte/Tehama County Line	15,100	—	1,500	16,200
SR 149	R0	Jct. Rte. 70	—	25,000	3,350	28,000
SR 149	R3.107	Shippee Lt/Openshaw Rt	22,100	22,100	2,950	23,000
SR 162	0	Glenn/Butte County Line	—	1,800	220	2,100
SR 162	6.66	Richvale South Highway	1,800	1,300	120	1,800
SR 162	R9.726	Jct. Rte. 99	1,250	3,250	320	3,900
SR 162	14.03	Oroville, Larkin Road	2,600	8,900	1,150	9,700
SR 162	14.96	Oroville, 12Th Street	8,600	12,600	1,450	13,900
SR 162	15.831	Oroville, Jct. Rte. 70	12,600	26,000	3,400	29,500
SR 162	16.017	Feather River Boulevard	26,000	25,000	2,800	28,500
SR 162	17.142	Oroville, Lincoln Street	24,200	24,200	2,950	26,500
SR 162	17.553	On Olive Highway, South Of Oroville Dam Boulevard	24,200	22,900	2,800	25,000
SR 162	18.006	Oroville, Lower Wyandote Road	22,900	18,800	1,750	19,700
SR 162	18.457	Foothill Boulevard	17,300	11,700	1,350	13,100
SR 162	20.449	Oroville Quincy Highway	12,000	10,700	1,150	11,600
SR 162	20.49	Oakvale Avenue	10,700	9,800	1,000	10,800
SR 162	21.264	Canyon Drive	9,800	7,300	700	8,000
SR 162	21.457	Hillcrest Avenue	7,300	5,300	490	6,100
SR 162	22.899	Kelly Ridge Road	5,400	4,450	440	5,300
SR 162	24.194	Forbestown Road	4,100	1,650	170	2,100
SR 162	24.56	Loafer Creek Campground	1,600	1,300	140	1,700
SR 162	31.07	Foreman Road	1,300	—	140	1,700
SR 191	R0	Jct. Rte 70	—	4,000	500	4,300
SR 191	0.5	O'Neal Rd N - Rt	4,000	4,000	500	4,300
SR 191	3.53	Durham-Pentz Road	4,000	4,100	500	4,350
SR 191	3.925	Butte College Drive	4,200	4,200	500	4,250
SR 191	8.655	Paradise, Airport Road	4,300	4,300	510	4,350
SR 191	10.08	Easy Street	4,300	4,350	510	4,400
SR 191	11.13	Paradise, Bushman Road	4,350	4,450	530	4,500
SR 191	11.386	Paradise, Pearson Road	4,450	4,450	530	4,500
SR 191	11.387	End Route	4,450	—	530	4,500

"Before" and "after" are the counts on the lower- and higher-postmile side of the point. Caltrans counts most points by sampling and adjusts to a yearly average; the layer does not state its count year.