Most Traveled Bridges in Colorado

The busiest bridge in Colorado carries 261,000 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 25 Ml over Rtd Pedestrian Underpass	Denver	261,000	Fair	2003
I 25 Ml over SH 88 Ml W./belleview	Arapahoe	246,000	Fair	1958
Hov Ramp over I25 Access	Adams	242,000	Good	1993
I 25 Ramp over Hov Ramp R	Adams	242,000	Good	1998
I 25 Ml over Rr Spur	Denver	242,000	Fair	1949
I 25 Ml over Fox Street	Denver	242,000	Good	1949
I 25 Ml over Storm Drainage	Denver	242,000	Fair	1993
I 25 Ml over W. Myrtle Pl. / Rr	Denver	235,000	Fair	1956
I 25 Ml over 13th AVE	Denver	235,000	Fair	1956
Wbcolfax Rmp/i25ml over Bnsf Rr R	Denver	235,000	Good	1988
I 25 Ml over Orchard Road	Arapahoe	233,000	Fair	1958
I 25 Ml over 8th AVE	Denver	228,000	Fair	1958
I 25 Ml over I 225 Lrt	Denver	223,000	Good	2004
I25 Ml over Lrt	Denver	223,000	Fair	2004
I25 Ml S over I225 Ramp	Denver	221,000	Fair	2004
I25 Ramp over Speer Entrance	Denver	217,000	Good	2010
I 25 (rmp B) over Rr Spur	Denver	215,000	Fair	2014
I 25 Ml over Rr Spur	Denver	215,000	Fair	1958
Ramp To I 25 Ml over South Platte River R	Denver	215,000	Good	1987
Ramp To I 25 Ml over Bnsf Rr R	Denver	215,000	Good	1988
I 25 Ml over Highline Canal	Denver	213,000	Fair	1950
I 25 Ml over Yale AVE	Denver	213,000	Fair	1998
I 25 Ml over Dry Creek RD	Arapahoe	212,000	Fair	1987
I 25 Ml over SH 88 Ml East	Arapahoe	212,000	Good	2017
I 25 Ml over Ramp To I25 SB Walnut ST	Denver	212,000	Fair	1952
I 25 Ml over Rdwy Rr South Platte Rvr	Denver	212,000	Good	2011
SB I-25 On Ramp over Lrt	Denver	207,000	Good	2005
I 70 Ml over Havana ST Up Rr	Denver	205,000	Good	2016
I 70 Ml over Future Up Rr	Denver	205,000	Fair	2017
I 25 Ml Hov Lanes over Ramps To I 25/ I 70	Denver	200,000	Good	1989
I 25 Ml over 48th AVE Rr Spur	Denver	200,000	Fair	1992
Ramp To I 70 Ml over 48th AVE Rr Spur R	Denver	200,000	Fair	1993
I 25 Ml over 62nd AVE	Adams	196,000	Fair	1993
I 25 Ml over Up Rr	Adams	196,000	Fair	1993
I25 Ml over Brdwy Bnsf Uprr Rtd Lr	Denver	188,000	Fair	2002
I-25 Offramp over Lrt	Denver	188,000	Fair	2005
I 25 Ml over US 85 Ml	Denver	172,000	Good	2013
I 25 Ml over County Line Road	Arapahoe	171,000	Fair	1958
US 36 Ebnd Ml over I 25 Ml Ramps Hov Lanes	Adams	168,000	Good	1994
I 25 Ml over Pedestrian Underpass	Adams	154,000	Fair	1955
I 70 Ml over Sand Creek	Denver	147,000	Fair	2011
US 36 Hov over I25 Sbnd Ml And I25 Hov	Adams	144,000	Fair	1972
US 36 Ml over SH 224 Ml/n Broadway	Adams	144,000	Fair	1986
I 225 Ml over Tollgate Creek	Arapahoe	140,000	Good	1965
I 225 Ml over 13th AVE Bike Path/lrt	Arapahoe	140,000	Fair	1986
I 225 Ml over US 40 Ml	Arapahoe	140,000	Good	1988
I 225 Ramp over Pedestrian Underpass	Arapahoe	136,000	Fair	2003
US 6 Ramp B over I 25 Ml	Denver	136,000	Good	2014
US 6 Ml over Bnsf Rr And US 6 Ramp	Denver	136,000	Good	2014
US 6 Ml over South Platte River	Denver	136,000	Good	2014
US 6 Ml over I 25 Ml	Denver	136,000	Good	2014
US 6 Ramp over EB C-d Road	Denver	136,000	Good	2015
I 25 Ml over Farmers Highline Canal	Adams	135,000	Fair	1954
US 6 Ml over Bryant Street	Denver	134,000	Good	2014
US 6 Ramp To I-25 over Bryant Street	Denver	134,000	Good	2016
Ramp To I225 SB over I 225 Ml	Arapahoe	132,000	Good	2000
I 70 Ml over Zuni Street	Denver	130,000	Fair	1965
US 36 Ml over Pecos Street	Adams	129,000	Fair	2001
I 225 Ml over Goldsmith Gulch	Denver	128,000	Poor	1971
Ramp To I 25 Sbnd over Ramp To Park AVE R	Denver	125,500	Fair	1996
I25 NB To I70 Ramp over Globeville Road	Denver	125,500	Good	1996
I 225 Ml over Draw	Arapahoe	123,000	Fair	1971
I 25 Ml over Draw	El Paso	123,000	Fair	1959
I 25 Ml over US 24 Ml Fountain Crk	El Paso	123,000	Good	2017
Ramp To I 25 Nbnd over Clear Creek R	Adams	121,000	Good	1992
Ramp To I 25 Sbnd over Clear Creek R	Adams	121,000	Good	1992
I 225 Ml over 28th & 30th AVE Sand	Adams	121,000	Good	1990
I 225 Ml over Smith RD Up Rr	Adams	121,000	Fair	1994
I 25 Ml Nbnd over Clear Creek	Adams	121,000	Fair	1993
I 25 Ml Sbnd & Hov over Clear Creek	Adams	121,000	Fair	1993
I 225 Ml over Draw	Adams	121,000	Fair	1964
I 70 Ml over Bnsf Rr Up Rr Rtd Lr	Denver	121,000	Fair	1992
Ramp/washington ST over Ramp To SB I-25 R	Denver	121,000	Good	1993
I 25 Ml over Garden Of The Gods Road	El Paso	118,000	Fair	1988
I 70 Ml over Garrison Street	Jefferson	118,000	Fair	1967
I 70 Ml over Carr Street	Jefferson	118,000	Fair	1967
I 70 Ml over SH 121 Ml	Jefferson	118,000	Fair	1996
Ramp To I 25 Sbnd over Ramp To I 25 Nbnd R	Denver	117,500	Good	1988
Sbnd I25 Ramp H over Walnut Connector R	Denver	117,500	Good	2003
I 25 Ml over Big Dry Creek	Adams	116,000	Fair	1956
I 25 Ml over Happy Canyon Creek	Douglas	116,000	Fair	1999
I 25 Ml over Ridgegate PKWY	Douglas	116,000	Fair	2008
I 25 Ml over Clydesdale LN	Douglas	116,000	Fair	1999
6thavermp Toi25 NB over Ramp To 8th AVE R	Denver	114,000	Fair	1988
US 6 Ml over SH 95 Ml/sheridan Ave.	Jefferson	114,000	Good	2011
I-70 Ml over SH 72 Ml/ward Road	Jefferson	112,000	Good	2024
NB I-25 Ramp over I225 Ml	Denver	111,500	Good	2005
SB I-25 Ramp over Lrt	Denver	111,500	Good	2005
SB I-25 Offramp over Lrt	Denver	110,500	Good	2005
I 70 Ml Wbnd over Peoria Street	Denver	108,000	Good	2020
I 70 Ml Ebnd over Peoria Street	Denver	108,000	Good	2020
Ramp To I 25 Nbnd over Interchange Row R	Denver	107,500	Fair	1989
Eb6 Rmp. To I25 SB over Ramp To I 25 Sbnd R	Denver	107,500	Fair	1987
Ramp To I 25 Nbnd over US 6 Ml	Denver	107,500	Poor	1989
I 25 Sbnd Ramp over I 25 Ml	Denver	107,500	Good	1989
I25 EB Ramp A PKWY over Steets Ramps Rtd &	Denver	106,000	Fair	1988
I70 Ml over Light Rail	Jefferson	106,000	Fair	2010
I70 Ml over 40th Ave.	Jefferson	104,000	Good	2009
US 36 Ml over Lowell BLVD	Adams	103,000	Good	2014
I 25 Ml over Draw	Weld	102,000	Fair	2004
I25 Ml over Draw	Weld	102,000	Fair	2004
SB I-25 Offramp over Lrt	Denver	101,000	Good	2006
US 6 Ml over Mcintyre Gulch	Jefferson	101,000	Fair	1942
US 6 Ml over SH 121 Ml	Jefferson	101,000	Poor	1972
US 6 Ml over Garrison Street	Jefferson	100,000	Good	2015
I 25 Sbnd Ml over University BLVD	Denver	98,500	Good	2003
I25 Nbnd Ml over University Blvd.	Denver	98,500	Good	2003
Eb76 Rmp To I25 NB over SH 53 Ml	Adams	98,000	Good	1993
I76 EB Ramp To I25 over SH 53 Ml R	Adams	98,000	Good	1993
I-25 SB On Ramp over Lrt	Denver	98,000	Good	2005
SH 470 Ml over Willow Creek	Douglas	95,000	Fair	1984
NB I-25 Onramp over I-25 Offramp To Broadway	Denver	94,000	Fair	2005
I 25 Ml over Wash	El Paso	94,000	Fair	1990
I 270 Ml over US 6 Ml	Adams	93,000	Fair	2000
I 70 Ml over SH 95 Ml	Jefferson	93,000	Fair	1966
Ramp To SH 121 Ml over Clear Creek R	Jefferson	92,000	Good	1980
US 6 Ml over SH 391 Ml	Jefferson	92,000	Fair	1965
I 25 Ml over Jackson Creek	El Paso	91,000	Fair	1953
I 25 Ml over Draw	El Paso	91,000	Fair	1926
I70 WB Offramp over 32nd AVE	Jefferson	91,000	Good	2021
I 25 Ml & Ramps over Channel Md-b	Weld	91,000	Good	2000
I 25 Ml And Fr Rds over Lower Boulder Ditch	Weld	91,000	Good	2000
I270 EB Rmptoi70eb over I70 EB Rmp To Cent Prk	Denver	90,500	Good	2012
Cntprk Rmptowb I70 over I70 WB Rmp To I270	Denver	90,500	Good	2012
I 70 Ml over Lowell BLVD	Denver	90,000	Fair	1966
I 70 Ml over Tennyson Street	Denver	90,000	Fair	1966
I25 Ml Nbnd over Poudre River Floodplain	Larimer	90,000	Good	2022
I25 Ml Sbnd over Poudre River Floodplain	Larimer	90,000	Good	2023
I25 Ml over Chey Crk/nv Ave/tejon	El Paso	88,000	Good	2002
I70 Ml over Apex Gulch	Jefferson	87,000	Fair	1968
I 70 Ml over Lena Gulch	Jefferson	87,000	Fair	1968
Ramp/denver W BLVD over Lena Gulch R	Jefferson	87,000	Fair	1986
I 25 Ml over Hillsboro Tributary	Larimer	86,000	Good	2020
I 25 Ml Nbnd over County Road 16	Larimer	86,000	Good	2022
I 25 Ml Sbnd over County Road 16	Larimer	86,000	Good	2023
SH 402 Ml over I25 Ml	Larimer	86,000	Good	2020
I 25 Ml Nbnd over SH 60 Ml	Weld	86,000	Good	2023
Ramp To I 25 Nbnd over County Line Road R	Arapahoe	85,500	Good	1991
Ramp To I 25 Sbnd over County Line Road R	Arapahoe	85,500	Good	1991
I 25 Nbnd Ramp over Ramp To County Line RD R	Douglas	85,500	Fair	1983
C470 EB Ramp To 25 over Lrt	Douglas	85,500	Fair	2005
I 76 Ml over Up Rr	Adams	84,000	Good	2011
I-76 Ml over SH 224 Ml (74th Ave)	Adams	84,000	Good	2010
I 76 Ml over York Street	Adams	84,000	Good	2023
I76 Onrmp From 270 over I270b Ramp To I76 WB	Adams	84,000	Fair	2003
Ramp To SB I25 over Dirty Woman Creek R	El Paso	84,000	Good	2004
I 25 Ml over Teachout Creek	El Paso	84,000	Fair	1926
I70 Wbnd Ml over Brighton BLVD	Denver	83,000	Good	2021
I 25 Ml Sbnd over Weld County Road 46	Weld	83,000	Good	2022
Wolfensberger RD over East Plum Creek	Douglas	82,000	Fair	2003
SH 470 Ml over Highline Canal	Douglas	81,000	Good	1984
US 85 To C470 Ramp over Erickson Blvd.	Douglas	81,000	Good	2012
C470 EB Ramp To 25 over I 25 SH 470 Ml R	Douglas	80,000	Fair	1985
I 25 Ml Sbnd over SH 470 Ml	Douglas	80,000	Good	1990
I25 Ml Nbnd over SH 470 Ml	Douglas	80,000	Good	1990
E470wb Ramp To 25 over I 25 SH 470 Ml R	Douglas	80,000	Fair	1991
Ramp/i 70 Ml Ebnd over Lincoln Street	Denver	78,500	Fair	1991
Ramp/i 70 Ml Wbnd over Lincoln Street	Denver	78,500	Fair	1991
Rmp/i25nb To I70wb over Ramp To I-25 Sbnd R	Denver	78,500	Good	1993
I70 Ml EB over Washington St/s Platte R	Denver	78,500	Good	2001
US 85ml over Little Dry Creek	Arapahoe	78,000	Fair	1977
I70 Ml Ebnd over Drir	Denver	77,500	Good	2020
I 70 Ml Wbnd over SH 35 Ml	Denver	77,500	Good	2020
I 70 Ml Ebnd over SH 35 Ml	Denver	77,500	Good	2020
Pecos Rmp To I76wb over Bnsf Rr Rtd Light Rail	Adams	77,000	Good	1989
Ramp To Pecos ST over Bnsf Rr Rtd Light Rail	Adams	77,000	Good	1989
US 36 Ml over South Boulder Creek	Boulder	77,000	Good	1951
US 36 Ml over Davidson Ditch	Boulder	77,000	Good	2015
I 25 Ml over SH 29 Ml	El Paso	77,000	Good	2000
SH 83 Ml over Cherry Crk Dam Spillway	Arapahoe	76,000	Fair	1976
SH 83 Ml over Over Vaughn Way	Arapahoe	76,000	Fair	2003
Ramp/evans AVE SE over Ramp To Evans Ave[se] R	Denver	76,000	Good	1986
NW Ramp To W Evans over S Santa Fe Dr/us 85	Denver	76,000	Fair	1986
I 76 Ml over Arvada Channel	Jefferson	76,000	Fair	1982
I70 NB Rmp .75 Mi. over Globeville Rmp-nb I25	Denver	75,500	Fair	1994
I 25 Ml over East Plum Creek	Douglas	75,000	Good	2021
I 76 Ml over 96th AVE	Adams	74,000	Fair	1976
I 76 Ml over Washington Street	Adams	74,000	Fair	1990
SH 83 Ml/parker RD over Hampden Ave.	Arapahoe	74,000	Good	2003
SH 83 Ramp over Pedestrian/bikeway	Arapahoe	74,000	Fair	2003
I70 Ml Wbnd over Drir	Denver	74,000	Good	2020
US 36 Ml over Promenade Dr.	Jefferson	74,000	Fair	2006
US 36 Ml over Bnsf Rr	Jefferson	74,000	Fair	2017
I70 Ml Wbnd over Monaco Street	Denver	73,500	Good	2020
I70 Ml Ebnd over Monaco Street	Denver	73,500	Good	2020
I70 Ebnd Ml over Brighton BLVD	Denver	73,000	Good	2022
I 270 Ml Ebnd over I 70 Ml	Denver	73,000	Good	2019
Ramp To I 70 Ebnd over South Platte River	Denver	73,000	Good	2001
I70 Ml Ebnd over Bnsf\|city Street\|ltrail	Denver	73,000	Fair	2003
I70 Ml Wbnd over City Streets\|rr\|lr	Denver	73,000	Good	2003
I70 Ml WB over Washington St/s Platte R	Denver	73,000	Good	2003
Wbnd I70 Off Ramp over South Platte River	Denver	73,000	Good	2003
Ramp To US 36 WB over I 25 Sbml Hov Lanes	Adams	72,000	Fair	1998
SH 470 Ml over Massey Draw/c470 Trail	Jefferson	72,000	Fair	1968
I 25 Ml Serv. Rd. over Draw	Weld	72,000	Fair	1961
I225 Ml Sbnd over SH 30 Ml	Arapahoe	70,000	Fair	2004
Sh470 Ml over E. Fr Road/rooney Road	Jefferson	70,000	Fair	1988
WB Pena Boulevard over Future Picadilly Road \|	Denver	69,239	Fair	1992
EB Pena Boulevard over Future Picadilly Road \|	Denver	69,239	Fair	1992
Pena Boulevard over Second Creek \| W Plaza C	Denver	69,239	Fair	1992