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)

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

MCINTYRE ST

Unknown

Over: CLEAR CREEK, ACC RD-RR

0.1 MI SOUTH OF SH58, Jefferson, CO

Built 1971 ADT: 100

RICHMOND HILL ROAD

Unknown

Over: US 285 ML

NEAR CONIFER, Jefferson, CO

Built 2008 ADT: 17,000

ZEPHYR STREET

Unknown

Over: CHURCH RANCH BOULEVARD

.5 MI E OF WADSWORTH BLVD, Jefferson, CO

Built 1997 ADT: 38,920

PARK AVENUE

Fair

Over: BEAR CREEK

AT INTER. WITH SH 8, Jefferson, CO

Built 1926 Load: 6.5 t ADT: 220

JOYCE STREET

Fair

Over: RALSTON CREEK

0.06 MI NORTH OF 68TH AVE, Jefferson, CO

Built 1975 Load: 10.9 t ADT: 110

NFSR 543

Fair

Over: BUFFALO CREEK

4.4 MI FROM CR 126, Jefferson, CO

Built 1951 Load: 14.3 t ADT: 1

DUNRAVEN STREET

Fair

Over: VAN BIBBER CREEK

JUST NORTH OF 60TH PLACE, Jefferson, CO

Built 1972 Load: 14.8 t ADT: 160

SH 72 ML

Fair

Over: FARMERS HIGHLINE CANAL

INDIANA ST ABOUT 7800 N, Jefferson, CO

Built 1954 Load: 16.2 t ADT: 16,000

SH 121 ML

Fair

Over: CLEAR CREEK

S. edge 70, 76, ramp 121, Jefferson, CO

Built 1941 Load: 16.3 t ADT: 38,000

CANON STREET

Fair

Over: BEAR CREEK

AT INTER WITH SH 8, Jefferson, CO

Built 1945 Load: 16.3 t ADT: 102

NOLAN STREET

Fair

Over: RALSTON CREEK

0.06 MI N OF 58TH AVENUE, Jefferson, CO

Built 1950 Load: 17.2 t ADT: 576

KIPLING PARKWAY AR

Fair

Over: MASSEY DRAW AR

.1 MI N.OF JCT470&KIPLING, Jefferson, CO

Built 1987 Load: 17.7 t ADT: 49,000

74TH AVENUE

Fair

Over: CROKE CANAL

.1 MI W OF CARR STREET, Jefferson, CO

Built 1955 Load: 17.9 t ADT: 3,181

MAIN STREET

Fair

Over: DRAINAGE

W. OF KIPLING STREET, Jefferson, CO

Built 1942 Load: 18.1 t ADT: 1,100

CARR STREET

Fair

Over: RALSTON CREEK

JUST SOUTH OF BROOKS DR, Jefferson, CO

Built 1980 Load: 19.0 t ADT: 6,962

SH 8 ML

Fair

Over: STRAINS GULCH

0.75 MI S OF MORRISON, Jefferson, CO

Built 1935 Load: 19.1 t ADT: 4,000

KIPLING PARKWAY

Fair

Over: VAN BIBBER CREEK

JUST SOUTH OF 58TH AVENUE, Jefferson, CO

Built 1987 Load: 19.9 t ADT: 19,868

PIERCE ST

Fair

Over: WEIR GULCH

AT KENTUCKY AVENUE, Jefferson, CO

Built 1966 Load: 20.1 t ADT: 6,278

KIPLING STREET

Fair

Over: FARMERS HIGHLINE CANAL

0.1 MI NORTH OF 80TH AVE, Jefferson, CO

Built 1971 Load: 20.9 t ADT: 9,958

KIPLING STREET

Fair

Over: CROKE CANAL

0.15 MI NORTH OF 80TH AVE, Jefferson, CO

Built 1971 Load: 21.3 t ADT: 9,958

SH 72 ML

Fair

Over: VAN BIBBER CREEK

WARD RD, ARVADA, Jefferson, CO

Built 1972 Load: 21.4 t ADT: 28,000

SH 74 ML

Fair

Over: KERR GULCH

0.8 MI E OF KITTREDGE, Jefferson, CO

Built 1956 Load: 21.5 t ADT: 3,300

COUNTY ROAD 122

Fair

Over: SOUTH TURKEY CREEK

3 MI S OF TINYTOWN, Jefferson, CO

Built 1991 Load: 21.7 t ADT: 1,020

44TH AVENUE

Fair

Over: CLEAR CREEK

.71 MI EAST OF KIPLING, Jefferson, CO

Built 1974 Load: 21.7 t ADT: 13,333

COUNTY ROAD 122

Fair

Over: TURKEY CREEK

JUST SOUTH OF US285, Jefferson, CO

Built 1948 Load: 22.2 t ADT: 1,204

Related

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