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
E-470 NB
UnknownOver: I76, BNSFRR, CAMERON DR
35.44 MI FROM I25, Adams, CO
Built 2001 ADT: 39,000
E-470 SB
UnknownOver: I76, BNSFRR, CAMERON DR
35.44 MI FROM I25, Adams, CO
Built 2001 ADT: 39,000
SABLE ROAD/SH 2
UnknownOver: E-470
36.27 MI FROM I25, Adams, CO
Built 2002 ADT: 8,900
E-470 CONNECTOR
UnknownOver: US 85 ML
37.72 MI FROM I25, Adams, CO
Built 2001 ADT: 38,000
E-470 NB
UnknownOver: US85, UPRR, FULTON DITCH
37.83 MI FROM I25, Adams, CO
Built 2001 ADT: 38,000
E-470 SB
UnknownOver: US85, UPRR, FULTON DITCH
37.83 MI FROM I25, Adams, CO
Built 2002 ADT: 38,000
US 85 CONNECTOR
UnknownOver: E-470
38.38 MILES FROM I25, Adams, CO
Built 2001 ADT: 30,000
BRIGHTON BLVD
UnknownOver: E-470
38.47 MI FROM I25, Adams, CO
Built 2001 ADT: 30,000
E-470 NB
UnknownOver: Riverdale RD and Ditch
39.51 MI FROM I25, Adams, CO
Built 2001 ADT: 3,933
E-470 SB
UnknownOver: Riverdale RD and Ditch
39.51 MI FROM I25, Adams, CO
Built 2001 ADT: 7,550
QUEBEC STREET
UnknownOver: E-470 ML
41.57 MI FROM I25, Adams, CO
Built 2001 ADT: 30,000
E-470 NB
UnknownOver: Holly Street
42.61 MI FROM I25, Adams, CO
Built 2001 ADT: 2,882
E-470 SB
UnknownOver: Holly Street
42.61 MI FROM I25, Adams, CO
Built 2001 ADT: 2,882
COLORADO BLVD
UnknownOver: E-470 ML
43.66 MI FROM I25, Adams, CO
Built 2001 ADT: 30,000
E-470 NB
UnknownOver: York Street
44.83 MI FROM I25, Adams, CO
Built 2003
E-470 SB
UnknownOver: York Street
44.83 MI FROM I25, Adams, CO
Built 2003
WASHINGTON STREET
UnknownOver: E-470 ML
4.587 MI FROM I25, Adams, CO
Built 2001 ADT: 27,000
NB E470 TO SBI25
UnknownOver: I25, E470 ML, RAMPS
46.36 MI FROM I25, Adams, CO
Built 2003 ADT: 135,000
E-470 RAMP F
UnknownOver: I25, NWP
SB I25 TO SB E470, Adams, CO
Built 2003 ADT: 4,000
I 225 ML
UnknownOver: US 40 ML
IN AURORA, Adams, CO
Built 1988 ADT: 48,000
GUN CLUB RD/E470
UnknownOver: I 70 ML
0.5 MI E OF JCT US 40, Adams, CO
Built 1973 ADT: 9,934
POWHATON ROAD
UnknownOver: I 70 ML
2.7 MI E OF JCT US 40, Adams, CO
Built 1976 ADT: 27,000
SH 36 ML
UnknownOver: I 70 ML
3.6 MI E OF JCT US 40, Adams, CO
Built 1976 ADT: 21,000
I 70 BUS SPUR
UnknownOver: I 70 ML
WATKINS INTERCHANGE, Adams, CO
Built 1960 ADT: 22,000
COUNTY ROAD
UnknownOver: I 70 ML
1 MI E OF JCT SH 79, Adams, CO
Built 1959 ADT: 1,555
SH 79 ML
UnknownOver: I 70 ML
11.4 MI E OF JCT US 36, Adams, CO
Built 1959 ADT: 24,000
COMMUNITY CENTR DR
UnknownOver: I-25
112th OVER I-25, Adams, CO
Built 2004 ADT: 119,000
136TH AVENUE
UnknownOver: I-25 ML
136TH AVE OVER I-25, Adams, CO
Built 2004 ADT: 84,200
144TH AVE
UnknownOver: EAST FRONTAGE RD
0.1 MI E OF I-25, Adams, CO
Built 2006
144TH AVENUE
UnknownOver: I-25 ML
144TH AVE OVER I25, Adams, CO
Built 2007 ADT: 84,200
144TH AVE
UnknownOver: WEST FRONTAGE RD
0.10 MI W OF I-25, Adams, CO
Built 2006
Ireland Way
UnknownOver: E-470
7.78 MI FROM I25, Arapahoe, CO
Built 1996 ADT: 46,000
Gartrell Road
UnknownOver: E-470
8.90 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 7,400
E-470 NB
UnknownOver: Arapahoe Road
9.83 MI FROM I25, Arapahoe, CO
Built 1996 ADT: 300
E-470 SB
UnknownOver: Arapahoe Road
9.83 MI FROM I25, Arapahoe, CO
Built 1996 ADT: 300
Smoky Hill Road
UnknownOver: E-470
10.66 MI FROM I25, Arapahoe, CO
Built 1996 ADT: 29,000
E-470 NB
UnknownOver: Quincy Avenue
13.31 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 12,920
E-470 SB
UnknownOver: Quincy Avenue
13.31 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 2,000
Hampden Avenue
UnknownOver: E-470
14.32 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 6,300
Jewell Avenue
UnknownOver: E-470
16.35 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 10,000
State Highway 30
UnknownOver: E-470
17.58 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 19,000
6th Parkway
UnknownOver: E-470
18.91 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 38,000
E-470 Ramp H
UnknownOver: I-70, Colfax, E470 ML
E-470/I-70 Int., Arapahoe, CO
Built 2007 ADT: 4,800
E-470 NB
UnknownOver: I-70
20.50 MI FROM I25, Arapahoe, CO
Built 2006 ADT: 39,000
E-470 SB
UnknownOver: I-70
20.50 MI FROM I25, Arapahoe, CO
Built 2006 ADT: 39,000
E-470 NB
UnknownOver: Smith Road & UPRR
21.01 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 3,000
E-470 SB
UnknownOver: Smith Road & UPRR
21.01 MI FROM I25, Arapahoe, CO
Built 1997 ADT: 3,000
US 285 ML
UnknownOver: SOUTH PLATTE RVR, RDWY
IN SHERIDAN, Arapahoe, CO
Built 1960
US 85ML
UnknownOver: HAMPDEN AVENUE
SHERIDAN/ENGLEWOOD, Arapahoe, CO
Built 1961 ADT: 64,000
RIO GRANDE ST
UnknownOver: US 88 ML
LITTLETON, Arapahoe, CO
Built 1980 ADT: 32,000
Showing 101-150 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 |