Total Bridges
8,965
Public highway bridges in Colorado
State profile · Below national median SD
Colorado bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Colorado — drawn straight from the FHWA National Bridge Inventory.
- 8,965
- Public bridges
- 32.0%
- Good condition
- 4.3%
- Poor condition
- 4.3%
- Structurally deficient
Good Condition
32.0%
2,865 bridges rated 7-9
-18.0pp vs 50% benchmark
Poor Condition
4.3%
387 bridges rated 0-4
Structurally Deficient
4.3%
387 bridges flagged for repair priority
-2.7pp vs national avg 7.0%
Colorado vs national bridge condition
Colorado — Good condition share 32.0%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Colorado — Structurally deficient share 14.4%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Colorado (FHWA NBI)
Counties (64)
Adams 535 Alamosa 16 Arapahoe 391 Archuleta 44 Baca 106 Bent 68 Boulder 311 Broomfield 66 Chaffee 84 Cheyenne 61 Clear Creek 77 Conejos 62 Costilla 39 Crowley 28 Custer 20 Delta 64 Denver 458 Dolores 28 Douglas 263 Eagle 174 El Paso 686 Elbert 85 Fremont 137 Garfield 167 Gilpin 19 Grand 88 Gunnison 100 Hinsdale 31 Huerfano 94 Jackson 47 Jefferson 464 Kiowa 31 Kit Carson 130 La Plata 102 Lake 17 Larimer 559 Las Animas 207 Lincoln 129 Logan 182 Mesa 319 Mineral 26 Moffat 80 Montezuma 61 Montrose 118 Morgan 192 Otero 195 Ouray 39 Park 55 Phillips 27 Pitkin 62 Prowers 137 Pueblo 264 Rio Blanco 54 Rio Grande 71 Routt 96 Saguache 41 San Juan 13 San Miguel 59 Sedgwick 64 Summit 57 Teller 27 Washington 75 Weld 614 Yuma 49
Colorado vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Colorado on the same metric.
Bridges Needing Most Attention in Colorado
Six lowest-condition bridges in Colorado, ranked by composite NBI rating. Each is inspected at least every 24 months.
County Road 59
Structurally DeficientOver: N. Sterling Outlet Canal
0.3 Mi N of Co Rd 58, Logan, CO
Built 1940 Load: 1.4 t ADT: 6
COTTONWOOD ST
Structurally DeficientOver: NORTH CRESTONE CREEK
IN TOWN OF CRESTONE, Saguache, CO
Built 1991 Load: 2.3 t ADT: 65
CO Rd 32
Structurally DeficientOver: Feeder Ditch
0.28 MI E of Co Rd 75, Las Animas, CO
Built 1970 Load: 2.7 t ADT: 7
POTOMAC STREET
Structurally DeficientOver: OBRIAN CANAL
0.2 MILE NORTH OF SH 2, Adams, CO
Built 1940 Load: 3.8 t ADT: 190
88TH AVENUE
Structurally DeficientOver: KIOWA CREEK
0.1 MI E OF WOLF CREEK RD, Adams, CO
Built 1950 Load: 4.5 t ADT: 532
IRR# CO RD 500
PoorOver: CAT CREEK
NEAR CAMADO, Archuleta, CO
Built 1927 Load: 4.7 t ADT: 36
All Bridges in Colorado
US 287 ML
FairOver: SAND ARROYO
10 MILES NORTH OF CAMPO, Baca, CO
Built 1997 Load: 44.4 t ADT: 2,500
Main Street
FairOver: Local Drainage
0.1 Mi N of 2nd Street, Broomfield, CO
Built 1987 Load: 44.4 t ADT: 10,974
COUNTY ROAD U50
FairOver: SURFACE CREEK
1.7 MI W OF SH 65, Delta, CO
Built 1994 Load: 44.4 t ADT: 106
US 34 ML
FairOver: BIG THOMPSON RIVER
14 MI E OF ESTES PARK, Larimer, CO
Built 1936 Load: 44.4 t ADT: 4,900
US 50 ML
FairOver: CHICOSA CREEK
3.2 MI W. OF FOWLER, Pueblo, CO
Built 1986 Load: 44.4 t ADT: 4,200
SH 22 ML
FairOver: FULTON CANAL
.1MI W OF JCT US 85, Adams, CO
Built 1972 Load: 44.5 t ADT: 4,000
I 25 ML
FairOver: UP RR
0.8 MI SO OF JCT I-76, Adams, CO
Built 1993 Load: 44.5 t ADT: 196,000
SH 2 ML
FairOver: BNSF RR
.2 MI S OF JCT I76, Adams, CO
Built 1999 Load: 44.5 t ADT: 16,034
COUNTY ROAD 17
FairOver: SAND ARROYO
0.1 MI S OF CR R, Baca, CO
Built 1935 Load: 44.5 t ADT: 32
SH 96 ML
FairOver: BOB CREEK
1.4 MI EAST OF CROWLEY, Crowley, CO
Built 1964 Load: 44.5 t ADT: 2,500
SH 65 ML
FairOver: SURFACE CREEK
3.4 MI N OF ORCHARD CITY, Delta, CO
Built 1957 Load: 44.5 t ADT: 5,700
19TH ST RAMP
FairOver: PRIVATE PARKING LOT ACCE
SE OF 20TH HOV/DUT RAMP, Denver, CO
Built 1994 Load: 44.5 t ADT: 2,200
PERRY ST
FairOver: WEIR GULCH
NORTH OF 1ST AVENUE, Denver, CO
Built 1976 Load: 44.5 t ADT: 5,284
I 70 ML EBND
FairOver: SPRING CREEK
0.2 MI W OF VONA, Kit Carson, CO
Built 1970 Load: 44.5 t ADT: 4,500
County Road 37
FairOver: Rabbit Creek
1.3 Mi N of Co Rd 74E, Larimer, CO
Built 1981 Load: 44.5 t ADT: 103
COUNTY RD 18.3
FairOver: PURGATOIRE RIVER
0.1 MI S SH 12, Las Animas, CO
Built 1998 Load: 44.5 t ADT: 243
I 70 ML WBND
FairOver: KYLE RR
1.1 MI W OF JCT US 40, Lincoln, CO
Built 1975 Load: 44.5 t ADT: 6,000
US 160 ML
FairOver: S FK RIO GRANDE RIVER
AT SOUTH FORK, Rio Grande, CO
Built 1981 Load: 44.5 t ADT: 4,800
12th Ave/14th St
FairOver: Greeley No. 3 Ditch
12th Ave/14th Street, Weld, CO
Built 1986 Load: 44.5 t ADT: 2,263
County Road 84S
FairOver: South St. Vrain Creek
0.1 Mi S of St Hwy 7, Boulder, CO
Built 1990 Load: 44.6 t ADT: 637
COUNTY ROAD 123
FairOver: EIGHT MILE CREEK
0.7 MI E OF CR 67, Fremont, CO
Built 1991 Load: 44.6 t ADT: 812
COUNTY ROAD FF
FairOver: SANGRE DE CRISTO CK
4.4 MI W OF SH 159, Costilla, CO
Built 2013 Load: 44.7 t ADT: 16
I 70 ML EBND
FairOver: BAIR RANCH RD, DRAW
BAIR RANCH REST AREA, Garfield, CO
Built 1985 Load: 44.7 t ADT: 8,500
US 34 ML
FairOver: BIG THOMPSON RIVER
2 MI W OF LOVELAND, Larimer, CO
Built 2005 Load: 44.7 t ADT: 8,300
10 Ave/15 St
FairOver: Greeley No. 3 Ditch
At Int 10th/15 Street, Weld, CO
Built 1985 Load: 44.7 t ADT: 2,309
CNTY RD 2 MI LANE
FairOver: HOOPER LATERAL
.9 MI E OF CR 102, Alamosa, CO
Built 1995 Load: 44.8 t ADT: 50
MILL STREET
FairOver: NORTH CLEAR CREEK
INTERSECTION WITH SH119, Gilpin, CO
Built 1994 Load: 44.8 t ADT: 2,123
County Road 627
FairOver: Colorado River
1.4 Mi East of US Hwy 34, Grand, CO
Built 1999 Load: 44.8 t ADT: 4
COUNTY ROAD 290
FairOver: CHALK CREEK
.1 MI SW OF CR 162, Chaffee, CO
Built 1986 Load: 44.9 t ADT: 117
COUNTY ROAD 15
FairOver: CONEJOS RIVER
2.0 MI N OF CR G, Conejos, CO
Built 1996 Load: 44.9 t ADT: 38
COUNTY ROAD 4
FairOver: ARKANSAS RIVER
AT HOWARD, Fremont, CO
Built 1998 Load: 44.9 t ADT: 130
MAPLE GROVE ROAD
FairOver: SPRING CREEK
.4 MI W OF CR 61, Montrose, CO
Built 1980 Load: 44.9 t ADT: 376
56TH AVENUE
FairOver: IRONDALE GULCH
JUST EAST OF CHAMBERS RD, Denver, CO
Built 2000 Load: 45.0 t ADT: 17,525
PALMER DIVIDE ROAD
FairOver: ELK CREEK
1.5 MI E OF HIGHWAY 83, Douglas, CO
Built 1995 Load: 45.0 t ADT: 924
CTY RD 17/FDR 600
FairOver: DEEP CR
NO DATA ENTERED, Eagle, CO
Built 1960 Load: 45.0 t ADT: 166
County Road 8
FairOver: Bijou Canal
0.5 Mi N of Co Rd U, Morgan, CO
Built 2002 Load: 45.0 t ADT: 80
County Road R
FairOver: Beaver Creek
0.5 Mi E of Co Rd 28, Morgan, CO
Built 1987 Load: 45.0 t ADT: 1,112
I 225 ML SBND
FairOver: PEDESTRIAN UNDERPASS
IN AURORA, Arapahoe, CO
Built 2002 Load: 45.1 t ADT: 68,000
I 225 ML NBND+RAMP
FairOver: ULSTER ST.
IN DENVER, Denver, CO
Built 1976 Load: 45.1 t ADT: 69,000
DRANSFELDT ROAD
FairOver: SULPHUR GULCH
.2 MI S OF MAIN STREET, Douglas, CO
Built 2000 Load: 45.1 t ADT: 8,479
US 160 ML
FairOver: ANIMAS RIVER
INT. OF 550 & 160, La Plata, CO
Built 1968 Load: 45.1 t ADT: 17,000
COUNTY ROAD 11
FairOver: WEST DRY CREEK
7 MI S OF SH 10, Otero, CO
Built 1991 Load: 45.1 t ADT: 3
CR 201/SILOAM RD
FairOver: PECK CREEK
6.5 MI N OF SH 78, Pueblo, CO
Built 1991 Load: 45.1 t ADT: 127
ESCONDIDA DRIVE
FairOver: SOUTH FORK RIO GRANDE R.
560 ft S OF HIGHWAY 160, Rio Grande, CO
Built 1998 Load: 45.1 t ADT: 137
COUNTY ROAD 210
FairOver: SOUTH ARKANSAS RIVER
.2 MI S OF US50, Chaffee, CO
Built 1987 Load: 45.2 t ADT: 132
DECATUR STREET
FairOver: WEIR GULCH
DECATUR BTWN BARBERRY/9TH, Denver, CO
Built 1981 Load: 45.2 t ADT: 5,426
East Riverside Dr
FairOver: Big Thompson River
0.1 Mi S of Elkhorn Ave., Larimer, CO
Built 1979 Load: 45.2 t ADT: 6,668
COUNTY ROAD CC
FairOver: CATLIN CANAL
.2 MI E of CR 21, Otero, CO
Built 2016 Load: 45.2 t ADT: 257
County Road 128E
FairOver: North Boulder Creek
3.9 Mi E of St Hwy 72, Boulder, CO
Built 1994 Load: 45.3 t ADT: 80
I 70 ML
FairOver: CLEAR CREEK
3.4 MI E OF JCT SH 103, Clear Creek, CO
Built 1999 Load: 45.3 t ADT: 47,000
Showing 4,901-4,950 of 8,965 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |