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%.

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.

All Bridges in Colorado

LOOKOUT MOUNTAIN R

Unknown

Over: I 70 ML

4.3 MI E OF JCT SH 74, Jefferson, CO

Built 1970 ADT: 470

CONIFR.TWN.CNTR.DR

Unknown

Over: SH 285 ML

Conifer, Jefferson, CO

Built 2005 ADT: 24,000

COUNTY ROAD 65

Unknown

Over: I 70 ML

4.9 MI E OF JCT US 6, Jefferson, CO

Built 1971 ADT: 5,605

I 70 ML WBND

Unknown

Over: SODA CREEK ROAD

2.4 MI W OF JCT SH 74, Jefferson, CO

Built 1971 ADT: 1,000

US 40 ML

Unknown

Over: I 70 ML

8.1 MI E OF JCT US 6, Jefferson, CO

Built 1973 ADT: 47,000

SH 74 ML

Unknown

Over: I 70 ML

AT JCT I 70 EL RANCHO, Jefferson, CO

Built 1973 ADT: 46,000

CO RD CHIEF HOSA

Unknown

Over: I 70 ML

0.6 MI E OF JCT SH 74, Jefferson, CO

Built 1972 ADT: 450

US 40 ML

Unknown

Over: I 70 ML

1.8 MI E OF JCT SH 74, Jefferson, CO

Built 1970 ADT: 62,000

RAMP TO SH 74 SBND

Unknown

Over: I 70 ML R

20 MI. W. OF DENVER, Jefferson, CO

Built 1993 ADT: 12,248

WOLFF AVE

Unknown

Over: US 285 ML

Conifer / Aspen Park, Jefferson, CO

Built 2003 ADT: 24,000

I 70 ML EBND

Unknown

Over: US 6 ML AND RAMP

1.2 MI E OF C470, Jefferson, CO

Built 1969 ADT: 30,000

I 70 ML WBND

Unknown

Over: US 6 ML

0.6 MI W OF JCT US 40, Jefferson, CO

Built 1969 ADT: 30,000

US 6 ML

Unknown

Over: SH 391 ML

6th / KIPLING IN LAKEWOOD, Jefferson, CO

Built 1965 ADT: 44,000

SH 8 ML

Unknown

Over: US 285 ML

2 MI SOUTH OF MORRISON, Jefferson, CO

Built 1967 ADT: 29,000

SIMMS STREET

Unknown

Over: US 6 ML

IN LAKEWOOD, Jefferson, CO

Built 1966 ADT: 37,923

I 70 ML EBND

Unknown

Over: COUNTY RD 93

Morrison-Red Rocks Int., Jefferson, CO

Built 1969 ADT: 7,200

I 70 ML WBND

Unknown

Over: COUNTY RD. 93

MORRISON INTCHNG, Jefferson, CO

Built 1969 ADT: 7,200

I 70 ML EBND

Unknown

Over: US 40 ML

0.6 MI E OF JCT US 6, Jefferson, CO

Built 1969 ADT: 29,000

I 70 ML WBND

Unknown

Over: US 40 ML

WEST OF DENVER, Jefferson, CO

Built 1969 ADT: 29,000

I 70 ML EBND

Unknown

Over: OLD GOLDEN ROAD

0.3 MI E OF JCT US 40, Jefferson, CO

Built 1968 ADT: 1,000

I 70 ML WBND

Unknown

Over: OLD GOLDEN ROAD

3.3 MI W OF JCT SH 58, Jefferson, CO

Built 1968 ADT: 1,000

ROONEY ROAD

Unknown

Over: I 70 ML

W side of C470 I70 INT., Jefferson, CO

Built 1969 ADT: 2,246

I 70 WB RAMP

Unknown

Over: US 6 ML

0.8MI W OF INDIANA ST, Jefferson, CO

Built 1969 ADT: 30,700

S. SIMMS ST

Unknown

Over: US 285 ML

IN DENVER, Jefferson, CO

Built 2003 ADT: 4,751

ALAMEDA PKWY

Unknown

Over: SH 470 ML

1.8 MI S OF I-70/C470 INT, Jefferson, CO

Built 1988 ADT: 10,350

SH 470 ML WBND

Unknown

Over: I 70 ML

JCT. I70 & 470, Jefferson, CO

Built 1987 ADT: 90,000

SH 470 ML EBND

Unknown

Over: I 70 ML

I 70 AND SH 470 INTERSECT, Jefferson, CO

Built 1987 ADT: 90,000

RAMP TO SH470 EBND

Unknown

Over: SH W470 ML R

I70 WBND to 470 EBND RAMP, Jefferson, CO

Built 1988 ADT: 23,000

SH 470 ML WBND

Unknown

Over: SH 8, BEAR CREEK

MORRISON RD. INTERCHANGE, Jefferson, CO

Built 1989 ADT: 11,000

SH 470 ML EBND

Unknown

Over: SH 8, BEAR CREEK

MORRISON RD. INTERCHANGE, Jefferson, CO

Built 1989 ADT: 11,000

DENVER WEST BLVD

Unknown

Over: I 70 ML

0.9 MI E OF JCT US 40, Jefferson, CO

Built 1996 ADT: 23,250

SH 470 ML EBND

Unknown

Over: SH 121-WADSWORTH BLVD

13.9 MI E - JCT SH 470 +, Jefferson, CO

Built 1987 ADT: 24,000

SH 470 ML WBND

Unknown

Over: SH 121-WADSWORTH BLVD

3.2 MI W - JCT US 85 + SH, Jefferson, CO

Built 1987 ADT: 24,000

SH 470 ML WBND

Unknown

Over: US 285 ML

2 MI S OF MORRISON, Jefferson, CO

Built 1988 ADT: 28,000

SH 470 ML EBND

Unknown

Over: US 285 ML

2 MI S OF MORRISON, Jefferson, CO

Built 1988 ADT: 28,000

QUINCY AVE

Unknown

Over: SH 470 ML

0.5 MI SE OF SH470+US285, Jefferson, CO

Built 1989 ADT: 7,906

ROONEY ROAD

Unknown

Over: SB C470 TO WB I70 RMP

I70 RAMP AT ROONEY RD., Jefferson, CO

Built 2004 ADT: 8,400

BOWLES AVE

Unknown

Over: SH 470 ML

1.1 MI S OF BELLEVIEW, Jefferson, CO

Built 1990 ADT: 4,800

US 6 ML

Unknown

Over: SH 121 ML

IN LAKEWOOD, Jefferson, CO

Built 1972 ADT: 56,000

US 285 ML

Unknown

Over: KIPLING PARKWAY

1.5 MI W OF JCT SH 121, Jefferson, CO

Built 1991 ADT: 44,000

US 285 ML

Unknown

Over: ESTES ST

HAMPDEN .75 MI E OF SH 39, Jefferson, CO

Built 1991

US 285 ML

Unknown

Over: COUNTY ROAD 60

0.9 MI E OF JCT SH 8, Jefferson, CO

Built 2008

US 285 ML

Unknown

Over: WILLOW SPRINGS ROAD

0.3 MI E OF JCT SH 8, Jefferson, CO

Built 2008

PARMALEE GULCH RD.

Unknown

Over: US 285 ML

2.5 MILES SW OF SH 8, Jefferson, CO

Built 1993 ADT: 22,000

JCT 470W

Unknown

Over: US 40 ML & LENA GULCH

I 70 TO US 6, Jefferson, CO

Built 1999 ADT: 10,000

SH 470 RAMP

Unknown

Over: US 6 ML

NEAR GOLDEN, Jefferson, CO

Built 1999 ADT: 39,100

SH 470 ML

Unknown

Over: RAMP & BIKE PATH R

RAMP TO SB470/6TH AVE EAS, Jefferson, CO

Built 1999 ADT: 39,100

US 285 ML NBND

Unknown

Over: SH 121 ML

HAMPDEN/WADSWORTH, Jefferson, CO

Built 2012 ADT: 67,000

US 6 ML

Unknown

Over: SH 95 ML/SHERIDAN AVE.

IN LAKEWOOD, Jefferson, CO

Built 2011 ADT: 52,000

US 285 ML SBND

Unknown

Over: SH 121 ML

HAMPDEN/WADSWORTH, Jefferson, CO

Built 2012 ADT: 46,000

Showing 551-600 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.

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.

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.