State profile · Below median Poor share

Colorado bridge safety

Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Colorado, based on the FHWA National Bridge Inventory.

8,965
Public bridges
32.0%
Good condition
4.3%
Poor condition

Data updated May 2026

Total Bridges

8,965

Public highway bridges in Colorado

Good Condition

32.0%

2,865 bridges rated 7-9

-18.0pp vs 50% benchmark

Poor Condition

4.3%

387 bridges whose lowest applicable component is rated 0-4

-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 - Poor-condition share 14.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Colorado35.3%59.9%GoodFairPoor
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 by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Colorado on the same metric.

TN

Tennessee

3.97% top marginal rate
Structure
Progressive
Burden @ $100K
$20,426

MD

Maryland

4.27% top marginal rate
Structure
Progressive
Burden @ $100K
$5,527
Selected

CO

Colorado

4.32% top marginal rate
Structure
Progressive
Burden @ $100K
$8,965

OR

Oregon

4.46% top marginal rate
Structure
Progressive
Burden @ $100K
$8,310

OH

Ohio

4.54% top marginal rate
Structure
Progressive
Burden @ $100K
$26,753

Bridges Needing Most Attention in Colorado

Six lowest-condition bridges in Colorado, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

County Road 59

Poor

Over: N. Sterling Outlet Canal

0.3 Mi N of Co Rd 58, Logan, CO

Built 1940 Load: 1.4 t ADT: 6

COTTONWOOD ST

Poor

Over: NORTH CRESTONE CREEK

IN TOWN OF CRESTONE, Saguache, CO

Built 1991 Load: 2.3 t ADT: 65

CO Rd 32

Poor

Over: Feeder Ditch

0.28 MI E of Co Rd 75, Las Animas, CO

Built 1970 Load: 2.7 t ADT: 7

POTOMAC STREET

Poor

Over: OBRIAN CANAL

0.2 MILE NORTH OF SH 2, Adams, CO

Built 1940 Load: 3.8 t ADT: 190

88TH AVENUE

Poor

Over: KIOWA CREEK

0.1 MI E OF WOLF CREEK RD, Adams, CO

Built 1950 Load: 4.5 t ADT: 532

IRR# CO RD 500

Poor

Over: CAT CREEK

NEAR CAMADO, Archuleta, CO

Built 1927 Load: 4.7 t ADT: 36

All Bridges in Colorado

COUNTY ROAD AA

Good

Over: EMPIRE CANAL

1.2 MI W OF SH 285, Conejos, CO

Built 1999 Load: 38.8 t ADT: 64

CRYSTAL VALLEY PKW

Good

Over: SELLARS GULCH

0.1 MI W OF LAKE GULCH RD, Douglas, CO

Built 1999 Load: 38.8 t ADT: 5,296

County Road 42

Good

Over: Elk River

0.9 Mi W of Co Rd 44, Routt, CO

Built 1989 Load: 38.8 t ADT: 222

County Road 35

Good

Over: Larimer and Weld Canal

0.8 Mi N of Co Rd 78, Weld, CO

Built 1992 Load: 38.8 t ADT: 437

WB MONTVIEW BLVD

Good

Over: WESTERLY CREEK

0.26 MI E OF YOSEMITE, Adams, CO

Built 2014 Load: 38.9 t ADT: 10,906

I 70 ML WBND

Good

Over: SMITH ROAD, UP RR

4.3 MI E OF JCT I 225, Adams, CO

Built 2014 Load: 38.9 t ADT: 17,000

US 40 ML

Good

Over: TOLLGATE CREEK

IN AURORA, Arapahoe, CO

Built 2015 Load: 38.9 t ADT: 38,000

US 50 ML

Good

Over: LUBERS DRAW

18 ME E OF LAS ANIMAS, Bent, CO

Built 2004 Load: 38.9 t ADT: 2,300

SH 101 ML

Good

Over: DRAW

1.4 MI NO OF TOONERVILLE, Bent, CO

Built 2020 Load: 38.9 t ADT: 70

Flagstaff Rd CR56

Good

Over: HIllside Slide

1.0 Mi W of Baseline Rd, Boulder, CO

Built 2014 Load: 38.9 t ADT: 2,463

SH 119 ML, E.Bnd

Good

Over: LEFT HAND CREEK

3.6 MI NE OF SH 52, Boulder, CO

Built 2003 Load: 38.9 t ADT: 24,000

Anderson Hill St

Good

Over: James Creek

200 Ft S of Main St, Boulder, CO

Built 2016 Load: 38.9 t ADT: 117

Martin Street

Good

Over: Left Hand Creek

0.2 MI S Ken Pratt Blvd, Boulder, CO

Built 2016 Load: 38.9 t ADT: 2,572

SH 92 ML

Good

Over: GUNNISON RIVER

6.4 MI NE OF DELTA, Delta, CO

Built 2022 Load: 38.9 t ADT: 5,000

PLUM CREEK PARKWAY

Good

Over: EAST PLUM CREEK

JUST E OF I-25, Douglas, CO

Built 2009 Load: 38.9 t ADT: 31,996

I 25 ML NBND

Good

Over: BLACK SQUIRREL CREEK

3.7 MI N OF JCT SH 83 ML, El Paso, CO

Built 2014 Load: 38.9 t ADT: 46,000

I 25 ML SBND

Good

Over: BLACK SQUIRREL CREEK

6.8 MI S OF JCT SH 105 ML, El Paso, CO

Built 2014 Load: 38.9 t ADT: 46,000

US 24 ML

Good

Over: BLACK SQUIRREL CREEK

7.1 MI E OF FALCON, El Paso, CO

Built 2012 Load: 38.9 t ADT: 7,400

MILLER STREET

Good

Over: VAN BIBBER CREEK

JUST NORTH OF 58TH AVE, Jefferson, CO

Built 1979 Load: 38.9 t ADT: 782

I 25 ML SBND

Good

Over: BIG THOMPSON RIVER

0.7 MI SO OF JCT US 34, Larimer, CO

Built 2022 Load: 38.9 t ADT: 34,000

I 25 ML NBND

Good

Over: BIG THOMPSON RIVER

1.3 MI N OF JCT SH 402, Larimer, CO

Built 2021 Load: 38.9 t ADT: 34,000

I 25 SERVICE RD

Good

Over: BIG THOMPSON RIVER SR

1.3 MI N OF JCT SH 402, Larimer, CO

Built 2020 Load: 38.9 t ADT: 3,911

County Rd 25E

Good

Over: Redstone Creek

0.4 MI N of Swanson R. Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 138

County Rd 25E

Good

Over: Redstone Creek

0.5 MI S of Lazuli Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 99

County Rd 25E

Good

Over: Redstone Creek

0.2 MI N of Lazuli Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 99

County Rd 25E

Good

Over: Redstone Creek

Lazuli Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 68

County Rd 25E

Good

Over: Redstone Creek

0.2 MI N of Lazuli Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 44

County Rd 25E

Good

Over: Redstone Creek

0.9 MI N of Lazuli Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 18

County Rd 25E

Good

Over: Redstone Creek

1.5 MI N of Lazuli Rd, Larimer, CO

Built 2017 Load: 38.9 t ADT: 14

County Rd 43

Good

Over: N. Fork Big Thompson

2.0 MI E of Horseshoe Rd, Larimer, CO

Built 2016 Load: 38.9 t ADT: 585

Waltonia Road

Good

Over: Big Thompson River

20 ft S of US 34, Larimer, CO

Built 2018 Load: 38.9 t ADT: 107

US 350 ML

Good

Over: BLACKWELL ARROYO

10.2 MILES FROM JCT 160, Las Animas, CO

Built 2015 Load: 38.9 t ADT: 710

I 25 RAMP

Good

Over: SB ONRAMP FRM COMM. ST.

IN TRINIDAD, Las Animas, CO

Built 2011 Load: 38.9 t ADT: 16,000

SH 90 ML

Good

Over: DOLORES RIVER

0.4 MI E OF BEDROCK, Montrose, CO

Built 2017 Load: 38.9 t ADT: 340

SH 39 ML

Good

Over: SOUTH PLATTE RIVER

6.6 MI N OF JCT US 34, Morgan, CO

Built 1996 Load: 38.9 t ADT: 640

I 76 ML EBND+NBND

Good

Over: COUNTY ROAD

1 MI W OF FT MORGAN, Morgan, CO

Built 2005 Load: 38.9 t ADT: 8,000

I 25 ML SBND

Good

Over: SCROGGS ARROYO

2.5 MI N OF COLORAD CITY, Pueblo, CO

Built 2003 Load: 38.9 t ADT: 7,500

COUNTY ROAD 273

Good

Over: GREENHORN CREEK

Just S of SH 165, Pueblo, CO

Built 2019 Load: 38.9 t ADT: 537

COUNTY RD 38FF

Good

Over: MIDDLE CREEK

8.9 MI N OF SH 114, Saguache, CO

Built 1992 Load: 38.9 t ADT: 53

14TH STREET

Good

Over: CEMENT CREEK

IN TOWN OF SILVERTON, San Juan, CO

Built 1993 Load: 38.9 t ADT: 647

I 25 SERVICE RD

Good

Over: LITTLE THOMPSON RIVER SR

6.7 MI NO OF JCT SH 56, Weld, CO

Built 2013 Load: 38.9 t ADT: 2,400

SH 60 ML

Good

Over: LITTLE THOMPSON RIVER

5.8 MI E OF JCT I 25, Weld, CO

Built 2019 Load: 38.9 t ADT: 9,600

County Road 49

Good

Over: Box Elder Creek

1.3 MI N of CR 22, Weld, CO

Built 2017 Load: 38.9 t ADT: 4,747

COUNTY ROAD 240

Good

Over: RED CREEK

JUST N OF MI MARKER 10, La Plata, CO

Built 2001 Load: 39.0 t ADT: 2,952

US 160 BYPASS

Good

Over: PURGATOIRE RIVER

0.5 MI E OF I 25 IN TRINI, Las Animas, CO

Built 1988 Load: 39.0 t ADT: 3,700

County Road 55

Good

Over: Iliff Platte Valley Ditc

1.4 Mi N of US Hwy 138, Logan, CO

Built 1989 Load: 39.0 t ADT: 126

COUNTY ROAD 24

Good

Over: PERSIGO WASH

0.6 MI NORTH OF RD J, Mesa, CO

Built 2010 Load: 39.0 t ADT: 1,212

County Road Q

Good

Over: Bijou Canal

At Junct. with Co Rd 10, Morgan, CO

Built 1991 Load: 39.0 t ADT: 1,617

COUNTY ROAD 31U

Good

Over: MIRAMONTE RES SPILLWAY

AT MIRAMONTE STATE REC AR, San Miguel, CO

Built 1965 Load: 39.0 t ADT: 94

I 70 ML WBND

Good

Over: DRAW

2.6 MI W ELBERT-LINCOLN C, Elbert, CO

Built 1972 Load: 39.1 t ADT: 5,500

Showing 7,451-7,500 of 8,965 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.