Jefferson County, CO

464 public highway bridges

Jefferson County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Jefferson County, Colorado contains 464 public highway bridges. Roughly 29.3% are rated “Good,” 50% “Fair,” and 3.9% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

464
Total Bridges
29.3%
Good
50%
Fair
3.9%
Poor Condition

Condition Distribution

Good
29.3% (136)
Fair
50% (232)
Poor
3.9% (18)

All Bridges (464)

I70 ML

Fair

Over: APEX GULCH

JUST E OF COLFAX EXIT, Jefferson, CO

Built 1968 Load: 99.9 t ADT: 87,000

US 6 ML

Fair

Over: DRAW

1.0 MI E OF INDIANA AVE, Jefferson, CO

Built 1947 Load: 99.9 t ADT: 63,000

SH 121 ML

Fair

Over: PED UNDERPASS,DRAW

0.2 MI NO OF JCT SH 470, Jefferson, CO

Built 1964 Load: 99.9 t ADT: 20,000

SH121 ML-WADSWORTH

Fair

Over: DUTCH CREEK

.2 MI. S. OF COAL MINE RD, Jefferson, CO

Built 1965 Load: 99.9 t ADT: 29,000

SH 121 ML

Fair

Over: DEER CREEK

2.0 MI S OF JCT SH 470, Jefferson, CO

Built 1968 Load: 99.9 t ADT: 23,000

US 285 ML & RAMP

Fair

Over: PARMALEE GULCH

AT INDIAN HILLS RD INTERS, Jefferson, CO

Built 1993 Load: 99.9 t ADT: 27,000

US 285 ML

Fair

Over: ELK CREEK

SHAFFERS CROSSING, Jefferson, CO

Built 1958 Load: 99.9 t ADT: 17,000

ELDRIDGE STREET

Fair

Over: WEAVER CREEK

0.6 mi S. of Quincy Ave, Jefferson, CO

Built 2012 Load: 99.9 t ADT: 1,067

W. QUINCY AVENUE

Fair

Over: WEAVER CREEK

0.3 MI N of BELLEVIEW AVE, Jefferson, CO

Built 2006 Load: 99.9 t ADT: 9,838

COLLINS AVENUE

Fair

Over: LAKEWOOD GULCH

0.1 MI E OF SIMMS ST, Jefferson, CO

Built 1997 Load: 99.9 t ADT: 2,008

US 6 ML

Good

Over: CLEAR CREEK

0.1 Mi S of SH58, Jefferson, CO

Built 1999 Load: 14.5 t ADT: 28,000

COUGAR ROAD

Good

Over: DEER CREEK

2.7 MI W OF SH75, Jefferson, CO

Built 1969 Load: 18.1 t ADT: 889

RAMP TO SH 470 WBD

Good

Over: BEAR CREEK R

SE CRNR OF MORRISON RD. I, Jefferson, CO

Built 1989 Load: 19.3 t ADT: 39,500

US 285 ML

Good

Over: CONIFER ROAD

2 MI NE OF CONIFER, Jefferson, CO

Built 2002 Load: 21.4 t ADT: 23,000

US 285 ML

Good

Over: KENNEDY GULCH RD

1/2 MI W OF CONIFER, Jefferson, CO

Built 2002 Load: 22.0 t ADT: 26,000

92ND LANE

Good

Over: FARMERS HIGHLINE CANAL

JUST N OF 92 AVENUE, Jefferson, CO

Built 1995 Load: 22.5 t ADT: 609

41ST AVENUE

Good

Over: LENA GULCH

JUST E OF KIPLING, Jefferson, CO

Built 1981 Load: 22.7 t ADT: 411

RESEARCH ROAD

Good

Over: LENA GULCH

0.1 mi N of S Golden Rd, Jefferson, CO

Built 2012 Load: 23.3 t ADT: 2,445

RAMP TO SH 470 EBD

Good

Over: BEAR CREEK R

SW CRNR OF MORRISON RD.IN, Jefferson, CO

Built 1989 Load: 24.7 t ADT: 39,500

DEER CRK CANYON RD

Good

Over: DEER CREEK

1.4 MI E OF PHILLIPSBURG, Jefferson, CO

Built 1969 Load: 27.0 t ADT: 2,820

BEECH STREET

Good

Over: RALSTON CREEK

0.3 MI SOUTH OF 72ND AVE, Jefferson, CO

Built 1978 Load: 27.3 t ADT: 1,714

US 285 ML

Good

Over: PLEASANT PARK RD.

Conifer, Jefferson, CO

Built 2003 Load: 27.4 t ADT: 25,000

OLD GOLDEN ROAD

Good

Over: LENA GULCH

East of Noble Road, Jefferson, CO

Built 2014 Load: 29.2 t ADT: 17,591

SHERIDAN BLVD

Good

Over: BIG DRY CREEK

0.2 MI S OF 112TH AVENUE, Jefferson, CO

Built 1995 Load: 29.4 t ADT: 28,771

KIPLING STREET

Good

Over: FARMERS HIGHLINE CANAL

JUST SOUTH OF 86TH PKWY, Jefferson, CO

Built 1984 Load: 29.7 t ADT: 8,443

SH 470 ML EBND

Good

Over: BELLEVIEW AVE

1.2 MI S OF JCT SH 285, Jefferson, CO

Built 1990 Load: 30.0 t ADT: 31,500

US 6 ML

Good

Over: MAYHEM GULCH

1.8 MI E OF JCT SH 119, Jefferson, CO

Built 1950 Load: 30.4 t ADT: 7,500

EB 86TH PARKWAY

Good

Over: CROKE CANAL

0.1 MI WEST OF KIPLING, Jefferson, CO

Built 1984 Load: 31.4 t ADT: 7,964

YOUNGFIELD ST

Good

Over: CLEAR CREEK

.79 MI N OF W 32ND AVENUE, Jefferson, CO

Built 1988 Load: 31.6 t ADT: 14,909

VANCE ST

Good

Over: LAKEWOOD GULCH

BTWN HIGHLAND DR & 9TH AV, Jefferson, CO

Built 1967 Load: 31.7 t ADT: 348

I 76 EBND

Good

Over: 52ND AVE

.4 MI E OF MARSHALL-I76, Jefferson, CO

Built 1983 Load: 31.8 t ADT: 38,000

WBND SH 74 ML

Good

Over: TROUBLESOME CREEK

S OF BERGEN PARK, Jefferson, CO

Built 1995 Load: 31.8 t ADT: 8,500

SH 470 ML WBND

Good

Over: KIPLING PARKWAY

12.4 MI S OF I 70, Jefferson, CO

Built 1986 Load: 31.8 t ADT: 24,500

MCINTYRE STREET

Good

Over: FARMERS HIGHLINE CANAL

JUST S OF 52ND DRIVE, Jefferson, CO

Built 2001 Load: 31.8 t ADT: 22,206

I70 WB OFFRAMP

Good

Over: 32ND AVE

AT 32ND AVENUE, Jefferson, CO

Built 2021 Load: 32.4 t ADT: 91,000

US 6 RAMP

Good

Over: EB C-D ROAD

EBND ON RAMP, Jefferson, CO

Built 2015 Load: 32.4 t ADT: 136,000

SH 74 ML

Good

Over: TROUBLESOME CREEK

WEST EDGE OF KITTREDGE, Jefferson, CO

Built 1959 Load: 32.6 t ADT: 6,000

COUNTY ROAD 65

Good

Over: SODA CREEK

1.3 MI SO OF I 70, Jefferson, CO

Built 1978 Load: 32.7 t ADT: 4,517

70TH AVENUE

Good

Over: FARMERS HIGHLINE CANAL

0.3 MI E OF QUAKER STREET, Jefferson, CO

Built 1993 Load: 32.7 t ADT: 231

CARR DRIVE

Good

Over: FARMERS HIGHLINE CANAL

.25 MI NORTH OF 74TH AVE, Jefferson, CO

Built 1975 Load: 32.7 t ADT: 3,900

CARR DRIVE

Good

Over: CROKE CANAL

.30 MI NORTH OF 74TH AVE, Jefferson, CO

Built 1975 Load: 32.7 t ADT: 3,900

DEFRAME CT

Good

Over: LOCAL DRAINAGE

JUST S OF WYNDHAM PARK, Jefferson, CO

Built 1999 Load: 32.7 t ADT: 64

INDIANA STREET

Good

Over: BIG DRY CREEK

.25 MI N OF CANDELAS PKWY, Jefferson, CO

Built 2019 Load: 32.7 t ADT: 20,390

OAK STREET

Good

Over: VAN BIBBER CREEK

JUST SOUTH OF 58TH AVE, Jefferson, CO

Built 2001 Load: 32.7 t ADT: 2,067

VANCE DRIVE

Good

Over: LITTLE DRY CREEK

0.1 MI SOUTH OF 80TH AVE, Jefferson, CO

Built 1975 Load: 32.7 t ADT: 2,608

COUNTY ROAD 122

Good

Over: SOUTH TURKEY CREEK

2 MI SOUTH OF TINYTOWN, Jefferson, CO

Built 2000 Load: 32.7 t ADT: 1,690

SH 95 ML

Good

Over: PEDESTRIAN UNDERPASS

JUST S OF US36, Jefferson, CO

Built 2023 Load: 32.7 t ADT: 31,000

US 285 ML

Good

Over: WILDLIFE CROSSING

NEAR CONIFER, Jefferson, CO

Built 2009 Load: 32.7 t ADT: 19,000

50TH AVENUE

Good

Over: FARMERS HIGHLINE CANAL

.5 MI W OF MCINTYRE, Jefferson, CO

Built 1972 Load: 32.7 t ADT: 3,277

INDIANA ST

Good

Over: CROKE CANAL

.4 MI N OF 52ND AVE, Jefferson, CO

Built 2008 Load: 32.7 t ADT: 3,405

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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.