Jefferson County, CO

464 public highway bridges

Jefferson County Bridge Snapshot

Jefferson County, Colorado contains 464 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.3% are rated “Good,” 50% “Fair,” 3.9% “Poor,” and 3.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CO are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

464
Total Bridges
29.3%
Good
3.9%
Poor
3.9%
Structurally Deficient

Condition Distribution

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

All Bridges (464)

VIRGIL COURT

Good

Over: LOCAL DRAINAGE

0.2 MI S OF 60TH AVE, Jefferson, CO

Built 1994 Load: 32.7 t ADT: 207

SOUTH VALLEY ROAD

Good

Over: DEER CREEK TRIBUTARY

1.5 MI S OF KEY CARYL AVE, Jefferson, CO

Built 1975 Load: 32.7 t ADT: 1,801

YOUNGFIELD ST

Good

Over: WEAVER CREEK

0.5 MI S OF QUINCY, Jefferson, CO

Built 1980 Load: 32.7 t ADT: 1,665

WASHINGTON AVENUE

Good

Over: CLEAR CREEK

JUST S OF 10TH STREET, Jefferson, CO

Built 2003 Load: 32.7 t ADT: 6,904

ILLINOIS STREET

Good

Over: KINNEY RUN

0.4 MI S OF 24TH STREET, Jefferson, CO

Built 2004 Load: 32.7 t ADT: 137

CARR STREET

Good

Over: LOCAL DRAINAGE

0.1 MI SO OF CHATFIELD, Jefferson, CO

Built 1985 Load: 32.7 t ADT: 1,189

W. CHATFIELD AVE

Good

Over: WILLOW CREEK

0.5 mi W. of Wadsworth, Jefferson, CO

Built 2010 Load: 32.7 t ADT: 9,714

QUINCY AVENUE

Good

Over: WEAVER CREEK

0.15 MI E OF SIMMS AVE, Jefferson, CO

Built 2012 Load: 32.7 t ADT: 7,474

WEAVER DRIVE

Good

Over: LILLEY GULCH

0.3 MI E OF PIERCE CT, Jefferson, CO

Built 1972 Load: 32.7 t ADT: 1,204

PIERCE STREET

Good

Over: DUTCH CREEK

0.2 MI N OF COAL MINE RD, Jefferson, CO

Built 1971 Load: 32.7 t ADT: 13,773

MARINA RD

Good

Over: BEAR CREEK

NEAR ENT BEAR CREEK PK, Jefferson, CO

Built 1984 Load: 32.7 t ADT: 141

WESTMOOR CIRCLE

Good

Over: BIG DRY CREEK

135 FT S OF WESTMOOR DR, Jefferson, CO

Built 1998 Load: 32.7 t ADT: 4,453

EATON STREET

Good

Over: BIG BULL CREEK

S OF 110TH AVENUE, Jefferson, CO

Built 1975 Load: 32.7 t ADT: 2,331

SHERIDAN BLVD

Good

Over: MID. BR. HYLAND CREEK

JUST N OF 104TH AVE, Jefferson, CO

Built 1987 Load: 32.7 t ADT: 32,178

SH 470 ML WBND

Good

Over: KEN CARYL RD

10.2 MI S. OF I 70, Jefferson, CO

Built 1987 Load: 32.8 t ADT: 29,000

HOGBACK ROAD

Good

Over: TURKEY CREEK

1.0 MI E OF CO 8, Jefferson, CO

Built 2018 Load: 33.0 t ADT: 220

KIPLING STREET

Good

Over: VAN BIBBER CREEK

JUST SOUTH OF 58TH AVENUE, Jefferson, CO

Built 2006 Load: 33.1 t ADT: 279

I 70 ML EBND

Good

Over: CLEAR CREEK

.4 MI EAST OF JCT. SH 121, Jefferson, CO

Built 1967 Load: 33.7 t ADT: 46,000

US 6 ML

Good

Over: GARRISON STREET

IN LAKEWOOD, Jefferson, CO

Built 2015 Load: 34.0 t ADT: 100,000

SIMMS STREET

Good

Over: RALSTON CREEK

0.3 MI S OF 72ND AVENUE, Jefferson, CO

Built 1990 Load: 34.3 t ADT: 9,302

KIPLING STREET

Good

Over: BEAR CREEK

.5 MI S OF MORRISON RD, Jefferson, CO

Built 2006 Load: 34.3 t ADT: 4,249

MILLER STREET

Good

Over: VAN BIBBER CREEK

JUST S OF 58TH AVENUE, Jefferson, CO

Built 2007 Load: 34.5 t ADT: 95

COUNTY ROAD 122

Good

Over: SOUTH TURKEY CREEK

3.75 MI SOUTH OF TINYTOWN, Jefferson, CO

Built 2000 Load: 34.5 t ADT: 1,031

NELSON STREET

Good

Over: LENA GULCH

.1 MI SOUTH OF 38TH AVE, Jefferson, CO

Built 1986 Load: 34.7 t ADT: 514

MCINTYRE STREET

Good

Over: CROKE CANAL

0.2 MI N OF 44TH AVENUE, Jefferson, CO

Built 1988 Load: 35.4 t ADT: 25,056

W 44TH AVENUE

Good

Over: CROKE CANAL

.1 MILE W OF McINTYRE, Jefferson, CO

Built 1995 Load: 35.5 t ADT: 5,243

I 70 ML EBND

Good

Over: 32ND AVE

5.0 MI E of C-470, Jefferson, CO

Built 2023 Load: 35.6 t ADT: 45,500

I 70 ML WBND

Good

Over: 32ND AVE

5.0 MI E of C-470, Jefferson, CO

Built 2023 Load: 35.6 t ADT: 45,000

EB I70 ML

Good

Over: WILDLIFE CROSSING

2.9 MI E OF JCT SH74, Jefferson, CO

Built 2023 Load: 35.6 t ADT: 41,000

WB I70 ML

Good

Over: WILDLIFE CROSSING

2.9 MI E of JCT SH74, Jefferson, CO

Built 2023 Load: 35.6 t ADT: 41,000

US 40 ML

Good

Over: SODA CREEK

6.2 MI E OF JCT US 6, Jefferson, CO

Built 2000 Load: 36.0 t ADT: 480

US 6 ML

Good

Over: DRAW

7.3 MI E OF JCT I 70, Jefferson, CO

Built 1949 Load: 36.6 t ADT: 7,500

MOORE STREET

Good

Over: LENA GULCH

200 FT S OF 38TH AVENUE, Jefferson, CO

Built 1986 Load: 36.7 t ADT: 263

DEPEW STREET

Good

Over: LOCAL DRAINAGE

.1 MILE SO OF CANYON DR, Jefferson, CO

Built 1981 Load: 37.0 t ADT: 708

COUNTY ROAD 122

Good

Over: SOUTH TURKEY CREEK

3.8 MI SOUTH OF TINYTOWN, Jefferson, CO

Built 1999 Load: 37.2 t ADT: 931

S UPHAM ST

Good

Over: SANDERSON GULCH

0.1 MI W OF S UPHAM CT, Jefferson, CO

Built 2017 Load: 37.7 t ADT: 893

19TH ST

Good

Over: US 6 ML

1.0 MI S of SH58, Jefferson, CO

Built 2017 Load: 38.2 t ADT: 2,000

EMERG. ACCESS RD

Good

Over: WEAVER CREEK

E OF APTS SW KIPLING ST, Jefferson, CO

Built 2002 Load: 38.3 t ADT: 9

SH 74 ML

Good

Over: COLD SPRING GULCH

2 MI SE OF KITTREDGE, Jefferson, CO

Built 1999 Load: 38.5 t ADT: 3,300

SH 470 ML EBND

Good

Over: KEN CARYL RD

10.2 MI E - JCT I70 + SH, Jefferson, CO

Built 1987 Load: 38.5 t ADT: 29,000

SH 74 EBND

Good

Over: TROUBLESOME CREEK

S OF BERGEN PARK, Jefferson, CO

Built 1996 Load: 38.6 t ADT: 8,500

US 285 ML NBND

Good

Over: PIERCE STREET

1 MI W OF JCT SH 95, Jefferson, CO

Built 2010 Load: 38.6 t ADT: 27,500

US 285 ML SBND

Good

Over: PIERCE STREET

1 MI W OF JCT SH 95, Jefferson, CO

Built 2010 Load: 38.6 t ADT: 27,500

SIMMS STREET

Good

Over: NORTH COON CREEK

0.2 MI SOUTH OF BELLEVIEW, Jefferson, CO

Built 2002 Load: 38.6 t ADT: 13,889

104TH AVE

Good

Over: S. BRANCH HYLAND CREEK

.5 MI W OF SHERIDAN BLVD, Jefferson, CO

Built 1991 Load: 38.6 t ADT: 25,211

I 70 ML WBND

Good

Over: CLEAR CREEK

ARVADA, Jefferson, CO

Built 1995 Load: 38.7 t ADT: 46,000

RAMP TO US 285 NBD

Good

Over: PARMALEE GULCH R

INDIAN HILLS RD INTSCTN, Jefferson, CO

Built 1993 Load: 38.7 t ADT: 13,500

MILLER STREET

Good

Over: VAN BIBBER CREEK

JUST NORTH OF 58TH AVE, Jefferson, CO

Built 1979 Load: 38.9 t ADT: 782

SH 58 ML

Good

Over: FORD STREET, WASH

IN GOLDEN, Jefferson, CO

Built 2013 Load: 39.2 t ADT: 18,000

GARRISON STREET

Good

Over: RALSTON CREEK

JUST S OF BROOKS DR, Jefferson, CO

Built 2013 Load: 39.4 t ADT: 3,986

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial