Most Traveled Bridges in Montana

The busiest bridge in Montana carries 35,914 vehicles per day. The table below ranks the state's bridges by average daily traffic — these are the structures where condition matters most, because a closure or weight restriction affects the largest number of commuters and freight haulers.

How this ranking works

Average daily traffic is reported by state transportation agencies and can trail real-world growth or detours. BridgeLookup uses it to rank likely disruption impact across comparable records.

Bridge	County	Daily Traffic	Condition	Year Built
N Reserve ST over Clark Fork R Flood Plain	Missoula	35,914	Fair	1977
N Reserve ST over Clark Fork River	Missoula	35,914	Fair	1975
Reserve ST over W Broadway St-rr	Missoula	29,572	Fair	1998
I90 over Mt Power Rr Spur	Yellowstone	29,488	Good	2023
Brooks St-us 12 over Bitterroot River	Missoula	28,185	Fair	1968
I 90 over City County Drain Ditch	Yellowstone	27,985	Fair	1966
I 90 over Grant Creek	Missoula	27,328	Good	1965
King AVE W over Bbwa Canal	Yellowstone	26,602	Fair	1994
N Seventh AVE over Int N 7th Ave-i 90	Gallatin	26,020	Fair	2014
US 93 over Stillwater River	Flathead	25,919	Fair	1996
US 191-huffine LN over Hyalite Creek	Gallatin	25,670	Fair	1956
Central AVE over Missouri River-ped Trail	Cascade	24,549	Good	1980
N 19th AVE over Int N 19th AVE	Gallatin	23,992	Fair	1994
Mullowney LN over Rr	Yellowstone	23,980	Good	2007
Mullowney LN over Rr	Yellowstone	23,980	Fair	2007
N Russel Street over Clark Fork River	Missoula	23,274	Good	2020
US 87 over Int Lockwood I 90	Yellowstone	23,199	Fair	1966
US 87 over Rr	Yellowstone	23,199	Fair	1993
US 87 over Yellowstone River	Yellowstone	23,199	Fair	1993
N00109 over US 2	Flathead	22,752	Good	2016
S Orange ST over Pedestrian-bike Path	Missoula	22,608	Good	2002
S Orange ST over Clark Fork River	Missoula	22,608	Fair	2003
IRR - US 2 over Flathead River	Flathead	22,220	Fair	1977
US 12-e Broadway S over Rattlesnake Creek	Missoula	21,390	Fair	1964
I 90 over Walking Path	Gallatin	21,232	Fair	2011
US 93 over Lolo Creek	Missoula	20,994	Good	1965
Lyndale Ave-us 12 over Great Northern Area	Lewis and Clark	20,397	Good	2003
US 93 Alternate over Foys Lake Road	Flathead	19,966	Good	2021
US 93 Bypass over Ashley Creek	Flathead	19,966	Good	2010
P00109 over Old Reserve Drive	Flathead	19,964	Good	2016
I 15 over Bell Creek	Silver Bow	19,755	Fair	1963
US 12 over Rr	Lewis and Clark	19,327	Good	1978
N Last Chance Gulc over Rr	Lewis and Clark	18,569	Good	2003
Madison St-us 12 over Clark Fork River	Missoula	18,393	Fair	1958
US 93 over Ashley Creek	Flathead	18,053	Fair	2001
Central AVE over Bbwa Canal	Yellowstone	17,985	Fair	1978
E Custer AVE over Int Custer Ave-i 15	Lewis and Clark	16,988	Good	2012
Spokane AVE over Whitefish River	Flathead	16,086	Good	1959
IRR - US 93 over Pablo Feeder Canal	Lake	15,997	Good	2006
Grand AVE over Bbwa Canal	Yellowstone	15,881	Fair	1981
US 93 over Mill Creek	Ravalli	15,852	Good	2011
S Billings BLVD over Sep Billings Blvd-i 90	Yellowstone	15,780	Fair	1963
I 90 over Int Airway BLVD	Gallatin	15,554	Fair	2014
I 90 over Int Airway BLVD	Gallatin	15,554	Fair	2014
I 90 over Sep Valley Center Spur	Gallatin	15,554	Fair	1966
I 90 over Sep E Valley Center Spur	Gallatin	15,554	Fair	1966
US 12 over Prickly Pear Creek	Lewis and Clark	15,333	Good	1978
I 90 over Greenough Dr-rattlesnake	Missoula	15,284	Fair	1966
I 90 over Greenough Dr-rattlesnake	Missoula	15,284	Fair	1966
I 90 EB over Int Van Buren Street	Missoula	15,284	Good	1964
I 90 WB over Int Van Buren Street	Missoula	15,284	Fair	1964
I 90 over Hogan Slough	Yellowstone	15,229	Fair	1959
Baker AVE over Rr	Flathead	15,102	Fair	1994
I-90 E&w over Abandoned Railroad	Silver Bow	15,011	Good	2019
I 15 over Sep Boulder Ave-rr	Lewis and Clark	14,810	Fair	2016
I 15 over Sep Boulder Ave-rr	Lewis and Clark	14,810	Fair	2017
I 90 over Yellowstone River	Yellowstone	14,744	Fair	2022
I-90 over Yellowstone River	Yellowstone	14,744	Fair	2023
S Montana ST over Silver Bow Creek	Silver Bow	14,718	Fair	1970
US 93 over Corvallis Canal	Ravalli	14,714	Good	1980
E Custer AVE over Helena Valley Canal	Lewis and Clark	14,653	Good	2012
US 93 over Bitterroot River	Ravalli	14,573	Fair	2005
US 93 over Blodgett Creek	Ravalli	14,573	Fair	2008
15th ST N-us 87 over Missouri R-rivers Trail	Cascade	14,369	Fair	1962
Cedar ST over Int Cedar St-i 15	Lewis and Clark	14,368	Fair	2002
9th ST N over Missouri River	Cascade	14,024	Fair	1996
US 93 over S Fork Bear Creek	Ravalli	13,924	Fair	2011
US 93 over N Fork Bear Creek	Ravalli	13,924	Good	2011
US 93 over Sweathouse Creek	Ravalli	13,924	Good	2010
6th ST SW over Sun River	Cascade	13,800	Fair	1980
S 40 over Whitefish River	Flathead	13,795	Good	1975
IRR - US 2 over Stillwater River	Flathead	13,680	Fair	1966
IRR - US 2 over Stillwater River	Flathead	13,680	Fair	1966
US 87-mt 3-mt 200 over Missouri River-u5205-rr	Cascade	13,666	Fair	1983
US 89-mt 3-mt 200 over Missouri River-u5205-rr	Cascade	13,666	Fair	1951
I 90 over Int Reserve Street	Missoula	13,664	Fair	1966
I 90 over Int Reserve Street	Missoula	13,664	Poor	1966
I 90 over Sep Coal Mine Road	Missoula	13,664	Good	1966
I 90 over Sep Coal Mine Road	Missoula	13,664	Fair	1966
Mullowney LN over Laurel Road	Yellowstone	13,348	Fair	2007
I 90 over Harvey Creek	Granite	13,081	Good	1970
I 90 over Drainage	Granite	13,081	Good	1971
I 90 over Sep Bearmouth Road	Granite	13,081	Good	1970
I 90 over Clark Fork River	Granite	13,081	Poor	1970
I 90 over Rattler Gulch	Granite	13,081	Fair	1971
US 93 over Church Drive	Flathead	12,960	Fair	2008
US 93 over Church Drive	Flathead	12,960	Fair	2008
S 35 over Spring Creek	Flathead	12,793	Fair	1966
S Shiloh RD over Bbwa Canal	Yellowstone	12,688	Fair	2000
I 315s over Int I 15	Cascade	12,651	Fair	1967
I 90 over Int Mossmain Road-p 4	Yellowstone	12,397	Fair	1964
I 90 over Int Mossmain Road-p 4	Yellowstone	12,397	Fair	1964
I 90 over Bbwa Canal	Yellowstone	12,397	Fair	1964
I 90 over Bbwa Canal	Yellowstone	12,397	Fair	1964
I 90 over Sep S 56th ST W	Yellowstone	12,397	Fair	1961
I 90 over Sep S 56th ST W	Yellowstone	12,397	Fair	1961
I 90 over Canyon Creek	Yellowstone	12,397	Fair	1959
I 90 over Canyon Creek	Yellowstone	12,397	Good	1959
US 310 over Rr	Yellowstone	12,394	Fair	2014
US 212 over Yellowstone River	Yellowstone	12,394	Good	1997
I 90 over Cove Irrigation Ditch	Stillwater	12,321	Good	1970
Central AVE W over Int Central AVE W-i 15	Cascade	12,316	Fair	1967
Bench BLVD over Alkali Creek	Yellowstone	12,314	Good	2011
I 90 over Spring Creek	Sweet Grass	12,306	Fair	1980
I 90 over Sep Airway BLVD	Missoula	12,090	Good	1997
I 90 over Sep Airway BLVD	Missoula	12,090	Good	1997
I 90 over Int Orange Street	Missoula	12,078	Good	1966
I 90 over Int Orange Street	Missoula	12,078	Good	1966
Prospect Ave-us 12 over Int Capitol-i 15	Lewis and Clark	12,054	Fair	1961
Prospect Ave-us 12 over Int Capitol-i 15	Lewis and Clark	12,054	Fair	1961
US 93 over Sweeney Creek	Ravalli	12,007	Good	2005
I 90 over Clark Fork River	Granite	11,802	Fair	1970
Second ST over Whitefish River	Flathead	11,777	Fair	2013
I 90 over Lost Creek	Deer Lodge	11,628	Fair	1978
US 93 over Wildlife Underpass	Ravalli	11,313	Good	2005
US 93 over Wildlife Underpass	Ravalli	11,313	Good	2006
US 93 over South Bass Creek	Ravalli	11,313	Good	2005
US 93 over North Bass Creek	Ravalli	11,313	Good	2005
Old HWY 312 over Five Mile Creek 183	Yellowstone	11,260	Good	2005
Old HWY 312 over Bbwa Canal 166	Yellowstone	11,260	Good	2005
Old HWY 312 over Bbwa Canal 167	Yellowstone	11,260	Fair	2005
S Higgins AVE over Clark Fork R-ped Paths	Missoula	11,197	Fair	1962
N Montana AVE over Helena Valley Canal	Lewis and Clark	11,167	Fair	1958
N Montana AVE over Ten Mile Creek	Lewis and Clark	11,167	Good	2004
S 35 over Flathead River	Flathead	11,074	Fair	1994
US 93 over Wildlife Crossing	Lake	10,897	Good	2007
US 93 over Wildlife Crossing	Lake	10,897	Good	2007
US 93 over Agricultural Crossing	Lake	10,897	Good	2007
S 84-norris RD over Gallatin River	Gallatin	10,845	Fair	1987
I 90 over Int Exit 396	Stillwater	10,845	Fair	1963
I 90 over Work Creek	Sweet Grass	10,845	Fair	1972
I 15 over Int Rocker	Silver Bow	10,824	Fair	1968
I 15 over Int Rocker	Silver Bow	10,824	Fair	1968
E Kagy BLVD over Bozeman Creek	Gallatin	10,757	Fair	1984
I 90 over Dempsey Creek	Powell	10,708	Fair	1973
I 90 over Sep N Rouse Ave-rr	Gallatin	10,616	Fair	2011
I 90 over Sep N Rouse Ave-rr	Gallatin	10,616	Fair	2010
I 90 over Sep L Street	Gallatin	10,616	Fair	1968
I 90 over Sep L Street	Gallatin	10,616	Fair	1968
I 90 over Rr	Gallatin	10,616	Fair	1971
E Airport RD over 6th AVE N Bypass 21	Yellowstone	10,544	Fair	2009
Canyon Ferry RD over Prickly Pear Creek	Lewis and Clark	10,503	Good	2001
I 90 over Rr	Missoula	10,499	Fair	1966
I 90 over Rr	Missoula	10,499	Fair	1966
I 90 over Sep Butler Creek Road	Missoula	10,499	Fair	1966
I 90 over Sep Butler Creek Road	Missoula	10,499	Fair	1966
I 90 over Jr Grade Sep	Powell	10,463	Fair	1961
I 90 over Jr Grade Sep	Powell	10,463	Fair	1961
US 93 over Skalkaho Creek	Ravalli	10,438	Fair	1984
I 90 over Willow Creek	Deer Lodge	10,417	Fair	1978
Wicks LN over Bbwa Canal	Yellowstone	10,387	Fair	1988
I 90 over Whitetail Creek	Silver Bow	10,349	Fair	1965
I 90 over Int E Missoula	Missoula	10,294	Fair	1964
I 90 over Int E Missoula	Missoula	10,294	Fair	1964
I 90 over Clark Fork River	Missoula	10,294	Fair	1965
I 90 over Clark Fork River	Missoula	10,294	Fair	1965
I 90 over Deer Creek Road	Missoula	10,294	Fair	1964
I 90 over Deer Creek Road	Missoula	10,294	Good	1964
I 90 over Sep Juniper Dr-clark Fk	Missoula	10,294	Fair	1965
I 90 over Sep Juniper Dr-clark Fk	Missoula	10,294	Fair	1965
US 191 Fh 42 over Gallatin River	Gallatin	10,221	Fair	1958
Aronson AVE over Alkali Creek 202	Yellowstone	10,114	Good	2008
Aronson AVE over Bbwa Canal 203	Yellowstone	10,114	Fair	2008
I 90 over Int Johnson Lane	Yellowstone	10,081	Fair	1967
I 90 over Int Johnson Lane	Yellowstone	10,081	Fair	1967
US 93 over Big Creek	Ravalli	10,026	Fair	2010
US 93 over Mccalla Creek	Ravalli	10,026	Fair	2010
US 93 over Mccalla Creek	Ravalli	10,026	Fair	2008
US 93 over Kootenai Creek	Ravalli	10,026	Fair	2008
Central AVE Ramp over Underpass Avenue	Yellowstone	9,943	Fair	1977
Zoo DR over Shiloh Interchange 014	Yellowstone	9,917	Fair	2001
I 15 over Int S Montana Street	Silver Bow	9,878	Fair	1961
I 15 over Int S Montana Street	Silver Bow	9,878	Fair	1961
I 90 over Rr	Gallatin	9,819	Fair	1971
I 90 over Int E Bozeman-p 50	Gallatin	9,819	Fair	1971
I 90 over Int E Bozeman-p 50	Gallatin	9,819	Fair	1971
I 90 over Sep Fort Ellis Road	Gallatin	9,819	Fair	1971
I 90 over Sep Fort Ellis Road	Gallatin	9,819	Fair	1971
I 90 over Int Bear Canyon	Gallatin	9,819	Fair	1962
I 90 over Int Bear Canyon	Gallatin	9,819	Fair	1962
I 90 over Rr	Gallatin	9,819	Fair	2006
I 90 over Rr	Gallatin	9,819	Fair	2006
I 90 over Madison River-rr	Gallatin	9,762	Fair	1964
I 90 over Madison River-rr	Gallatin	9,762	Fair	1964
I 90 over Darlington Ditch	Gallatin	9,762	Fair	1963
I 90 over Darlington Ditch	Gallatin	9,762	Fair	1963
I 90 over Madison River Overflow	Gallatin	9,762	Fair	1963
I 90 over Madison River Overflow	Gallatin	9,762	Fair	1963
I 90 over Madison Road	Gallatin	9,762	Fair	1963
I 90 over Madison Road	Gallatin	9,762	Fair	1963
I 90 over Int Logan	Gallatin	9,762	Fair	1963
I 90 over Int Logan	Gallatin	9,762	Good	1963
Lone Mountain Trl over W Fork W Gallatin 001	Gallatin	9,730	Fair	1972
Lone Mountain Trl over Middle Fk W Gallatin 004	Gallatin	9,730	Fair	1979
I 90 over Manhattan South RD	Gallatin	9,726	Fair	1964
I 90 over Manhattan South RD	Gallatin	9,726	Fair	1964
I 90 over Camp Creek	Gallatin	9,726	Good	1965
I 90 over Camp Creek	Gallatin	9,726	Good	1965
I 90 over Baker Creek	Gallatin	9,726	Good	1965
I 90 over Baker Creek	Gallatin	9,726	Good	1965