Bridges in Colorado

8,990Total Bridges

3,035Good

5,538Fair

417Poor

Bridge Conditions in Colorado

Colorado has 8,990 bridges tracked in the National Bridge Inventory. Of these, 417 (4%) are rated as poor condition — meaning at least one major component has significant deterioration. The average bridge in Colorado is 43 years old.

Colorado Bridge Facts

Total Bridges	8,990
Good Condition	3,035
Fair Condition	5,538
Poor Condition	417
Average Bridge Age	43 years
Longest Bridge	7169.0 ft

Longest Bridges in Colorado

I 70 Ml Wbnd over Hillside7169.0 ftFair US 40 Ml over I25 Rdwy Rr S Platte Rvr4382.9 ftFair 20th ST Hov over Roads | River | Rr3522.0 ftFair I 70 Ml Wbnd over French Creek3133.5 ftGood 8th Avenue over Bnsf Rr | Navajo ST | Os2370.1 ftFair

Counties in Colorado

Adams544 bridges41 poor Alamosa15 bridges Arapahoe392 bridges21 poor Archuleta45 bridges2 poor Baca105 bridges8 poor Bent69 bridges2 poor Boulder321 bridges7 poor Broomfield60 bridges1 poor Chaffee83 bridges4 poor Cheyenne61 bridges Clear Creek77 bridges5 poor Conejos63 bridges8 poor Costilla38 bridges Crowley27 bridges1 poor Custer20 bridges1 poor Delta64 bridges2 poor Denver457 bridges9 poor Dolores27 bridges3 poor Douglas264 bridges6 poor Eagle173 bridges13 poor El Paso685 bridges19 poor Elbert85 bridges5 poor Fremont137 bridges11 poor Garfield167 bridges2 poor Gilpin18 bridges Grand88 bridges5 poor Gunnison101 bridges5 poor Hinsdale32 bridges Huerfano94 bridges2 poor Jackson47 bridges2 poor Jefferson468 bridges30 poor Kiowa31 bridges2 poor Kit Carson130 bridges2 poor La Plata105 bridges1 poor Lake17 bridges2 poor Larimer562 bridges12 poor Las Animas205 bridges30 poor Lincoln127 bridges10 poor Logan182 bridges16 poor Mesa321 bridges6 poor Mineral26 bridges Moffat80 bridges5 poor Montezuma60 bridges5 poor Montrose117 bridges3 poor Morgan193 bridges6 poor Otero196 bridges16 poor Ouray39 bridges1 poor Park55 bridges3 poor Phillips26 bridges5 poor Pitkin65 bridges Prowers138 bridges18 poor Pueblo265 bridges12 poor Rio Blanco56 bridges2 poor Rio Grande73 bridges Routt97 bridges7 poor Saguache40 bridges3 poor San Juan12 bridges1 poor San Miguel59 bridges1 poor Sedgwick65 bridges1 poor Summit63 bridges5 poor Teller27 bridges1 poor Washington76 bridges3 poor Weld608 bridges21 poor Yuma47 bridges2 poor

Poor Condition Bridges in Colorado

Bridge	County	Length	Traffic	Year
I 225 Ml over Goldsmith Gulch	Denver	24.9 ft	128,000	1971
Ramp To I 25 Nbnd over US 6 Ml	Denver	1378.3 ft	107,500	1989
US 6 Ml over SH 121 Ml	Jefferson	190.0 ft	101,000	1972
SH 35 Ml over Sand Creek	Denver	331.4 ft	60,000	1962
I 70 Ml Wbnd over SH 391 Ml	Jefferson	172.9 ft	57,000	1967
I 70 Ml Ebnd over SH 391 Ml	Jefferson	172.9 ft	57,000	1967
I 70 WB Ramp over US 6 Ml	Jefferson	340.6 ft	53,000	1969
I 270 Ml Wbnd over South Platte River	Adams	308.1 ft	48,500	1969
I 270 Ml Ebnd over South Platte River	Adams	309.1 ft	48,500	1969
I 270 Ml Wbnd over Ditch RD Burlington Cana	Adams	219.2 ft	48,500	1969
I 270 Ebnd over E 64th AVE Burlington C	Adams	220.1 ft	48,500	1969
I 270 Ml Wbnd over SH 265 Ml Up Rr Bnsf Rr	Adams	369.1 ft	48,500	1969
I 270 Ml Wbnd over Service RD Bnsf Rr	Adams	338.3 ft	48,500	1970
US 285 Ml over Little Dry Creek	Arapahoe	124.0 ft	46,000	1955
I 70 Ml Wbnd over West 20th AVE	Jefferson	143.0 ft	45,500	1968
Ramp To US 6 Ml over Clear Creek R	Clear Creek	161.4 ft	41,000	1959
SH 6 Ml over Sand Creek	Adams	362.2 ft	40,000	1940
I 76 Ml Wbnd over Clear Creek	Jefferson	401.2 ft	38,000	1984
I 76 Ml Ebnd over Clear Creek	Jefferson	400.9 ft	38,000	1984
I 76 Ml Ebnd over Marshall Street	Jefferson	130.9 ft	38,000	1980
I 76 Ml Wbnd over Marshall Street	Jefferson	139.1 ft	38,000	1980
I 76 Ml Ebnd over Ramp To SH 121 Ml	Jefferson	172.9 ft	38,000	1982
I 76 Ml Wbnd over Ramp To SH 121 Ml	Jefferson	157.5 ft	38,000	1982
I 76 Ml Ebnd over I 70 Ml Wbnd	Jefferson	202.4 ft	38,000	1982
I 70 Ml over Clear Creek	Clear Creek	28.9 ft	37,000	1965
SH 391 Ml over Clear Creek	Jefferson	156.5 ft	37,000	1969
I 70 Ml Wbnd over County Rd. 93	Jefferson	198.2 ft	35,000	1969
I 70 Ml Wbnd over US 40 Ml	Jefferson	379.3 ft	35,000	1969
I 70 Ml Ebnd over Moss Street W 7th AVE	Jefferson	103.3 ft	35,000	1969
Broadway over Little Dry Creek	Arapahoe	59.4 ft	31,496	1935
US 50 Ml over Fountain Creek	Pueblo	403.9 ft	30,000	1958
SH 177 Ml over Little Dry Creek	Arapahoe	70.9 ft	29,000	1965
Sh6 Ditch Rider RD over Burlington Canal SR	Adams	77.4 ft	27,925	1948
88th Avenue over South Platte River	Adams	229.7 ft	25,590	1960
SH 121 Ml Sbnd over US 287 Ml Rr Spur	Broomfield	467.8 ft	25,000	1972
Speer BLVD Sbnd over I 25 Ml	Denver	257.5 ft	23,671	1952
I 70 Ml Wbnd over US 6 Clear Creek	Clear Creek	542.3 ft	23,500	1959
US 85 Ml over I 25 Ml	El Paso	256.2 ft	22,000	1956
US 85 Ml over Fountain Creek	El Paso	337.6 ft	22,000	1965
SH 88 Ml over Bear Creek	Arapahoe	94.2 ft	21,000	1966
Alameda AVE over I 225 Ml	Arapahoe	202.1 ft	20,060	1969
SH 392 Ml over Cache La Poudre River	Larimer	215.9 ft	19,000	1959
Tower Road over Third Creek	Adams	40.4 ft	18,738	1970
Platte Avenue over Shooks Run	El Paso	23.3 ft	18,034	1902
US 36 Ml Wbnd over Boulder Creek	Boulder	96.5 ft	18,000	1952
Ramp To I 70 Ebnd over I 70 Ml R	Jefferson	320.5 ft	17,000	1968
US 34 Ml Wbnd over US 85 Bus RT	Weld	232.6 ft	16,500	1962
US 34 EB over Up Rr	Weld	188.0 ft	16,500	1962
Circle Drive EB over Fountain Creek \| Ped Pat	El Paso	355.6 ft	16,339	1963
Circle Drive EB over Rdwy \| Uprr \| Bnsf Rr \|	El Paso	484.9 ft	16,339	1963
SH 95 Ml Nbnd over Bear Creek	Denver	107.3 ft	15,500	1961
SH 95 Ml Sbnd over Bear Creek	Denver	107.3 ft	15,500	1961
Ward Road over Ralston Creek	Jefferson	53.5 ft	15,435	1969
US 34 Ml Ebnd over Ramp To Us85 SB 8th AVE	Weld	225.1 ft	15,000	1968
SH 7 Ml Wbnd over Boulder Creek	Boulder	102.7 ft	15,000	1938
SH 96 Ml over Up Rr Fountain Crk	Pueblo	611.2 ft	15,000	1954
Plum Creek Parkway over Sellars Gulch	Douglas	64.6 ft	14,950	1987
Mcintyre Street over SH 58 Ml	Jefferson	205.1 ft	14,684	1973
I 70 Ml Wbnd over US 6 Rr Eagle River	Eagle	1126.0 ft	14,500	1971
I 70 Ml Wbnd over County Roads 26n 105	Adams	94.2 ft	13,000	1960
I 70 Ml Ebnd over County Roads 26n 105	Adams	94.2 ft	13,000	1960
I 70 Ml Wbnd over County Roads 28n 113	Adams	94.2 ft	13,000	1960
I 70 Ml Ebnd over County Roads 28n 113	Adams	94.2 ft	13,000	1960
I 70 Ml Wbnd over County Roads 31n 125	Adams	94.2 ft	13,000	1960
I 70 Ml Ebnd over County Roads 31n 125	Adams	94.2 ft	13,000	1960
Mckay Road over South Platte River	Adams	182.1 ft	12,861	1965
US 34 Ml Wbnd over Barnes Inlet Canal	Larimer	43.3 ft	12,500	1933
US 85 Ml Sbnd over South Platte River	Weld	952.1 ft	12,500	1955
York Street over I 270 Ml	Adams	285.1 ft	11,998	1970
23rd Avenue over I 25 Ml	Denver	255.9 ft	11,261	1952
US 85 Ml Nbnd over Cache La Poudre River	Weld	252.0 ft	11,000	1962
US 40 Ml over Crooked Creek	Grand	21.0 ft	11,000	1941
US 85 Ml over Fountain Creek	El Paso	567.6 ft	11,000	1930
I 70 Ml Wbnd over US 40 Frontage RD	Arapahoe	93.5 ft	10,527	1965
Orchard RD over Highline Canal	Arapahoe	35.8 ft	10,077	1965
I 70 Wbnd over Timber Creek	Eagle	315.6 ft	10,000	1977
I 70 Ml Wbnd over Black Gore Creek	Eagle	354.0 ft	10,000	1977
I 70 Ml Wbnd over Corral Creek	Summit	380.9 ft	10,000	1979
I 70 Ml Ebnd over Smith Gulch	Summit	272.6 ft	10,000	1977
I 70 Ml Ebnd over Guller Gulch	Summit	411.1 ft	10,000	1977
I 70 Ml Ebnd over Polk Creek	Eagle	732.0 ft	10,000	1978
I 70 Ml Ebnd over US 40 Frontage Road	Arapahoe	93.5 ft	9,839	1965
Perry Street over US 6 Ml	Denver	90.9 ft	9,607	1964
Dahlia Street over I 76 Ml	Adams	289.4 ft	9,516	1967
Henderson Road over South Platte River	Adams	241.1 ft	9,367	1970
3rd AVE WB over Gw Rr	Boulder	123.7 ft	9,116	1974
US 285 Ml over Draw	Chaffee	20.3 ft	8,600	1957
US 50 Service RD over Bnsf Rr Ar	Pueblo	253.0 ft	8,600	1953
I 70 Ml Ebnd over Colorado River	Eagle	440.3 ft	8,500	1980
I 70 Ml Wbnd over Colorado River	Eagle	438.3 ft	8,500	1980
County Road 63.1 over I 25 Ml	Las Animas	275.9 ft	8,500	1958
Ordnance Road over US 50 Ml	Pueblo	228.7 ft	8,400	1953
York Street over South Platte River	Adams	305.4 ft	8,359	1963
SH 141 Ml over Colorado River	Mesa	290.4 ft	8,300	1968
US 40 Ml over I 70 Ml Clear Creek	Clear Creek	329.7 ft	7,900	1965
Rock Creek PKWY over Community Ditch	Boulder	35.1 ft	7,760	2000
El Paso Street over Platte Avenue	El Paso	50.2 ft	7,042	1939
US 50 Ml Wbnd over Six Mile Creek	Fremont	49.9 ft	7,000	1949
I 25 Nbnd over Graneros Creek	Pueblo	95.8 ft	7,000	1948
Lincoln Avenue over Dry Creek	Larimer	29.9 ft	6,817	1948