Most Traveled Bridges in Idaho

The busiest bridge in Idaho carries 144,500 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
I 84 Ebl & Wbl over Ridenbaugh Canal	Ada	144,500	Fair	1966
I 84 over Ten Mile Creek	Ada	131,000	Fair	1965
I 84 Wbl & Ebl over I 84b ;garrity BLVD Ic	Canyon	111,000	Good	2011
I 84 Ebl & Wbl over Uprr;east Lateral Canal	Canyon	104,000	Good	2021
I 84 Ebl Wbl over Northside BLVD Ic	Canyon	84,500	Good	2021
I 184b Ebl & Wbl over S7403;uprr;franklin Ic	Ada	76,500	Good	2001
I 184b Ebl & Wbl over S7073;canal;cole RD	Ada	76,500	Fair	2001
I 184 Ebl over I 84 Wbl	Ada	68,500	Good	2001
I 84 Ebl Wbl over Sma 7923; Linden Road Gs	Canyon	68,000	Good	2022
I84 Ebl Wbl over Notus Canal	Canyon	68,000	Good	2022
I 90 Eb-wb;rmp Cd over Bnrr;post Falls Op	Kootenai	62,000	Fair	1977
SH 55;eagle Road over I 84 Eb-wb;eagle RD Ic	Ada	58,000	Fair	1990
I 84 ;us 20-26 over Stp 7773;10th AVE Ic	Canyon	58,000	Fair	1983
I 184;w Fairview over Settlers Canal	Ada	56,500	Fair	1967
I 84 Ebl over Phyllis Canal	Canyon	55,500	Good	2012
I 84 Wbl over Phyllis Canal	Canyon	55,500	Good	2012
I 84 Ebl over Uprr	Canyon	55,500	Good	2011
I 84 Wbl over Uprr	Canyon	55,500	Good	2011
I 84 over Farmers Sebree Canal	Canyon	53,500	Fair	1980
I 84 ;us 20-26 over Boise River;caldwell Br.	Canyon	53,500	Fair	1983
I 84 over SH 21;gowen RD Ic	Ada	52,000	Good	2015
SH 69 over Ten Mile Creek	Ada	49,500	Fair	1963
SH 55 over Uprr	Canyon	49,000	Good	2006
I 84 Ebl over New York Canal	Ada	45,750	Good	1968
I 84 Wbl over New York Canal	Ada	45,750	Good	1968
SH 55 over Boise River;s.channel	Ada	45,000	Good	1978
SH 55 over Boise River;n.channel	Ada	41,500	Good	1978
Sma7235;nw BLVD over I 90 Eb-wb;nw BLVD Ic	Kootenai	40,000	Fair	2001
US 20 over Porter Canal	Bonneville	38,000	Fair	1966
US 20 Ebl & Wbl over Snake R.;johns Hole Br.	Bonneville	38,000	Fair	1966
US 20 over Sma 7096;riverside Dr.ic	Bonneville	38,000	Fair	1969
US 20 Wbl & Ebl over Boise River	Ada	37,500	Fair	1990
US 20 Wbl & Ebl over Sma 9083;27th Street	Ada	37,500	Fair	1990
SH 44 over Willow Creek	Canyon	36,000	Fair	1953
SH 55 over Indian Creek	Canyon	36,000	Good	2006
SH 55 over I 84;karcher-midland Ic	Canyon	36,000	Good	2006
US 20 over Uprr;new York Canal	Ada	35,500	Fair	1970
Stp 9183;ten Mile over Future North Crossing	Ada	35,000	Fair	2011
US 20 over Sage Canal	Bonneville	34,500	Fair	1970
US 20 over Garfield Ucon Canal	Jefferson	34,500	Fair	1972
SH 69 over Ridenbaugh Canal	Ada	34,000	Fair	1990
Stp7220;state ST over Farmers Union Canal	Ada	34,000	Good	2019
SH 69 over Rawson Canal	Ada	33,500	Fair	1990
SH 44 over I 84 Eb-wb;middleton Ic	Canyon	33,500	Fair	1964
US 95 over I 90 E-wb;lincoln Way Ic	Kootenai	33,500	Fair	1960
US 20;broadway over I 84 Eb-wb;broadway Ic	Ada	33,000	Good	2015
US 93 over Perrine Coulee;bike Path	Twin Falls	33,000	Fair	2006
US 20 Wbl over Americana Blvd;15th St.	Ada	32,500	Fair	1992
I 90 Wbl over SH 41	Kootenai	32,500	Good	2024
I 90 Ebl over I 90 EB Off Ramp	Kootenai	32,500	Good	2023
I 90 Wbl over I 90 EB Off Ramp	Kootenai	32,500	Good	2024
I 90 Ebl over I 90 EB On Ramp	Kootenai	32,500	Good	2023
I 90 Wbl over I 90 EB On Ramp	Kootenai	32,500	Good	2024
I 90 Wbl over SH 41	Kootenai	32,500	Good	2024
I 90 Ebl over SH 41	Kootenai	32,250	Good	2023
I 90 Wbl over SH 41;sh 41 Ic	Kootenai	32,250	Fair	1971
I 90 Ebl over SH 41	Kootenai	32,250	Good	2023
US 20 over Uprr	Bonneville	32,000	Fair	1966
US 20 Wbl & Ebl over Sma 7076;lindsay Blvd.ic	Bonneville	32,000	Fair	1966
Stp 7446;sunnyside over Idaho Canal	Bonneville	32,000	Fair	2004
SH 44 over Canyon Creek	Canyon	32,000	Fair	1956
I 90 Wbl over Spokane River	Kootenai	32,000	Fair	1976
I 90 Ebl over Spokane River	Kootenai	32,000	Fair	1976
Stc8223;northside over Indian Creek	Canyon	31,500	Good	1968
US 93 over Snake River; Perrine Br.	Twin Falls	31,500	Fair	1976
I 90 Wbl over Huetter Road Gs	Kootenai	31,250	Fair	1971
I 90 Ebl over Huetter Road Gs	Kootenai	31,250	Fair	1971
I 90 Ebl over Atlas Road Gs	Kootenai	31,250	Fair	1971
I 90 Wbl over Atlas Road Gs	Kootenai	31,250	Fair	1971
I 90 Ebl over Pedestrian/bike Path	Kootenai	31,250	Fair	1971
I 90 Wbl over Pedestrian/bike Path	Kootenai	31,250	Poor	1971
I 90 Ebl over S 8505;pleasant View Ic	Kootenai	31,000	Fair	1976
I 90 Wbl over S 8505;pleasant View Ic	Kootenai	31,000	Fair	1976
I 90 Ebl over I 90b;post Falls Ic	Kootenai	31,000	Fair	1977
I 90 Wbl over I 90b;post Falls Ic	Kootenai	31,000	Fair	1977
Sand Hollow Road over I 84;sand Hollow RD Gs	Canyon	30,500	Fair	1962
Stp 7446;sunnyside over Sand Creek	Bonneville	30,000	Good	2002
Sma 7113; Curtis over Settlers Canal	Ada	29,000	Fair	2000
I 15 Nbl & Sbl over Ross Fork Creek	Bingham	29,000	Good	2023
Stc8223;northside over Uprr;nampa Rr Overpass	Canyon	29,000	Fair	1968
US 20 over Burgess Canal	Jefferson	28,500	Fair	1975
US 20 Eb-wb over SH 48;rigby Gs	Jefferson	28,500	Fair	1976
I 184 Ebl Connectr over US 20-26;boise Rv Slough	Ada	28,250	Fair	1991
I 184 Wbl Connectr over US 20-26;boise Rv Slough	Ada	28,250	Fair	1991
US 20; I 84b over Boise River;broadway Br	Ada	28,000	Fair	2016
US 20 Ebl over Americana Blvd;15th St.	Ada	28,000	Fair	1992
Nhs 7433;vista AVE over I 84 Eb-wb;vista AVE Ic	Ada	28,000	Fair	2010
Nhs 7433;vista AVE over New York Canal	Ada	28,000	Fair	1973
S 25 E; S Hitt RD over Sand Creek	Bonneville	27,500	Poor	1994
US 20 over Willow Creek	Bonneville	27,000	Fair	1970
US 20 over Anderson Canal	Bonneville	27,000	Fair	1970
I 84b over Indian Creek	Canyon	26,500	Fair	1951
US 20 ;i 84b over Ridenbaugh Canal	Ada	26,000	Fair	1970
I 84 Ebl over Uprr; Gowen Spur	Ada	26,000	Good	2015
I 84 Wbl over Uprr; Gowen Spur	Ada	26,000	Good	2015
I 84 Ebl over Uprr	Ada	26,000	Good	1969
I 84 Wbl over Uprr	Ada	26,000	Good	1969
I 184 over I 84;flying Wye Ic	Ada	26,000	Good	2000
Sma 9183;ten Mile over Ten Mile Drain	Ada	26,000	Good	1990
Sma 7563;overland over Ridenbaugh Canal	Ada	26,000	Fair	1991
I 15 over Riverside Canal	Bingham	26,000	Good	2019
Sma 7406;pancheri over Porter Canal	Bonneville	26,000	Fair	1998
Sma 7406;pancheri over Snake River	Bonneville	26,000	Fair	1971
Stp 7446;sunnyside over Butte Arm Canal	Bonneville	26,000	Good	2003
I 84b;centennial W over Uprr;indian Cr;caldwell	Canyon	26,000	Fair	1983
Sma8513;id Cntr RD over Phyllis Canal	Canyon	26,000	Fair	1987
I 84b over Snake River;overland Br	Cassia	26,000	Fair	2001
I 90 Ebl & Wbl over Stc7405; Penn AVE Gs	Kootenai	25,500	Good	2020
Stc 3856; Franklin over Five Mile Creek	Ada	25,000	Good	2004
SH 55 over Wilson Drain	Canyon	25,000	Fair	1973
SH 55 over Elijah Drain	Canyon	25,000	Fair	1973
Sma 7113;curtis RD over I 184b;curtis RD Ic	Ada	24,500	Fair	1968
Overland/cole Road over I 84;cole/overland Ic	Ada	24,500	Fair	1996
Stp8393;franklin B over I 84;franklin BLVD Ic	Canyon	24,500	Fair	2000
I 84 over N Canal	Jerome	24,500	Fair	1966
US 30 Ebl Spur over Snake R;fruitland Bridge	Payette	24,500	Good	1967
Sma7553;federal Wy over US 20 26;federal Way Ic	Ada	24,000	Fair	1970
Stp 9463;five Mile over Ridenbaugh Canal	Ada	24,000	Good	1995
Sma9463;five Mile over I 84;five Mile RD Gs	Ada	24,000	Fair	1966
US 20 over I 15 Nb-sb;johns Hole Ic	Bonneville	24,000	Good	1962
Sma 7406;17th ST over Idaho Canal	Bonneville	24,000	Good	1969
Rossi Street over Loggers Creek	Ada	23,500	Fair	1979
Sma 7563;overland over Ten Mile Creek	Ada	23,000	Fair	1986
Sma9803;maple Grve over Ridenbaugh Canal	Ada	23,000	Good	2008
Sma9803;maple Grve over Finch Lateral	Ada	23,000	Fair	2008
Sma9803;maple Grve over I 84;maple Grove RD Gs	Ada	23,000	Good	1989
I 84b over Phyllis Canal	Canyon	23,000	Good	1970
I 84 over C Canal	Jerome	23,000	Fair	1966
I 84 Ebl over Notus Canal	Canyon	22,750	Good	1964
Stp 7403;franklin over Ridenbaugh Canal	Ada	22,500	Fair	1995
Sma9213;veterans P over Boise River	Ada	22,500	Fair	1984
Sma9213;veterans P over Boise River;n Channel	Ada	22,500	Fair	1985
Sma9213;veterans P over Farmers Union Canal	Ada	22,500	Fair	1985
US 91 ;quinn Rd. over Uprr;quinn Road Op	Bannock	22,500	Good	1986
Sma 7406;17th ST over Butte Arm Canal	Bonneville	22,500	Fair	1959
Front Street over I 84b;nampa 11th AVE Up	Canyon	22,500	Good	2003
SH 69;meridian RD over I 84;sh 69 Meridian Ic	Ada	22,000	Good	2015
Sma 9773;linder RD over Phyllis Canal	Ada	22,000	Fair	1990
Sma 9773;linder RD over Boise River;s.channel	Ada	22,000	Fair	1993
Sma 9773;linder RD over Boise R;middle Channel	Ada	22,000	Fair	1991
Sma 9773;linder RD over Boise River;n. Channel	Ada	22,000	Good	1992
Sma 8963;eagle RD over Ridenbaugh Canal	Ada	22,000	Fair	2011
Stp7933;franklin R over Notus Canal	Canyon	22,000	Good	2009
Stp8393;franklin B over Phyllis Canal	Canyon	22,000	Fair	1963
I84 Ebl Wbl over B-4 Canal	Minidoka	22,000	Good	2024
Sma7344;bryden Cyn over Snake R;high/southway Br	Nez Perce	22,000	Fair	1982
Sma 9183;ten Mile over Five Mile Creek	Ada	21,500	Fair	2020
Sma9243;victory RD over Five Mile Creek	Ada	21,500	Good	1992
SH 69 over Kuna Canal	Ada	21,000	Fair	1990
SH 69 over Mason Crk;feeder Canal	Ada	21,000	Fair	1990
Stp 9183;ten Mile over I 84; Ten Mile RD Ic	Ada	21,000	Good	2011
US 12 over US 12;snake River	Nez Perce	21,000	Fair	1939
US 12 over Clearwater River;bnrr	Nez Perce	21,000	Fair	1951
Stp8973;orchard ST over I 84 Eb-wb;orchard ST Ic	Ada	20,500	Good	2010
Sma7553;federal Wy over New York Canal	Ada	20,500	Fair	1989
Sma9783;locust Grv over I 84;locust Grove Gs	Ada	20,500	Fair	2008
I 15b ;broadway ST over Snake River;broadway St.	Bonneville	20,500	Fair	1981
Sma7316;holmes AVE over Idaho Canal	Bonneville	20,500	Fair	1990
I 90 over Potlatch Hill Rd. Gs	Kootenai	20,500	Fair	1992
Nhs 7433;vista AVE over Ridenbaugh Canal	Ada	20,000	Fair	1947
Sma8353;16th AVE over Uprr;1st ST N	Canyon	20,000	Fair	1969
Sma8353;16th AVE N over Indian Creek	Canyon	20,000	Fair	1969
US 95 over Wildlife Crossing	Kootenai	20,000	Good	2012
SH 33 over Rexburg Canal	Madison	20,000	Fair	1938
US 20 over Phyllis Canal	Ada	19,500	Good	2023
Sma 9183;ten Mile over Ridenbaugh Canal	Ada	19,500	Fair	1993
Stp 9183;ten Mile over Tasa Drive	Ada	19,500	Fair	2011
Sma7013;cloverdale over Ridenbaugh Canal	Ada	19,500	Fair	2005
Sma7013;cloverdale over I 84;cloverdale RD Gs	Ada	19,500	Good	2019
Sma7013;cloverdale over Ridenbaugh Canal	Ada	19,500	Fair	1992
SH 55 over Deer Flat Canal	Canyon	19,500	Fair	1973
SH 55 over Phyllis Canal	Canyon	19,500	Good	1973
Nhs 7773;10th AVE over City St;uprr;caldwell Op	Canyon	19,500	Poor	1956
US 20 Ebl & Wbl over Parks Lewisville Canal	Jefferson	19,500	Fair	1975
US 95 over Payette River	Payette	19,500	Fair	1968
I 15 Sbl over I 86 WB Ramp	Bannock	19,250	Good	2024
I 15 Nbl over I 86 WB Ramp	Bannock	19,250	Good	2023
I 15 Sbl over I 86 EB Ramp	Bannock	19,250	Good	2024
I 15 Sbl over Stp7041;chubbuck Road	Bannock	19,250	Good	2024
Stp7343;orchard ST over I 184b;orchard ST Gs	Ada	19,000	Fair	1968
I 15 Nbl over I 15b;pocatello Creek Ic	Bannock	19,000	Fair	1999
I 15 Sbl over I 15b;pocatello Creek Ic	Bannock	19,000	Fair	1998
US 20; Franklin RD over I 84;franklin RD Ic	Canyon	19,000	Good	2008
Sma 8383;lone Star over Phyllis Canal	Canyon	19,000	Fair	1973
I 86 Ebl over I 84 Wbl	Cassia	19,000	Good	2020
I 84 over 250 North Rd.gs	Gooding	19,000	Fair	1972
I 84 over W-26 Canal	Gooding	19,000	Fair	1972
Abbott Road over US 95;abbott RD Ic	Kootenai	19,000	Good	2013
SH 74 over Rock Creek	Twin Falls	19,000	Good	1993
Sma 7093;meridian over Five Mile Creek	Ada	18,500	Good	1991
US 95 over Pend Oreille R;sandpoint	Bonner	18,500	Fair	1981
US 2 over Sand Creek	Bonner	18,500	Good	1973
Sma 7406; Pancheri over I 15 Nb-sb; Pancheri Gs	Bonneville	18,500	Good	2012
Stp8393;franklin B over Phyllis Canal	Canyon	18,500	Fair	1963
Stp8393;franklin B over Phyllis Canal	Canyon	18,500	Fair	1963
I 90 over Bennett Bay;sunnyside RD	Kootenai	18,500	Fair	1991
I 90 over Timothy Ln;evergreen Gs	Kootenai	18,500	Fair	1992
I 90 over Blue Creek Bay West Gs	Kootenai	18,500	Fair	1992
SH 16 over Phyllis Canal	Ada	18,000	Good	2014
SH 16 over Boise River	Ada	18,000	Good	2014