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)

SH 93 ML

Fair

Over: AGGREGATE ROAD

3 MI NO OF JCT SH 72, Jefferson, CO

Built 1999 Load: 40.8 t ADT: 16,000

SH 470 ML WBND

Fair

Over: DUTCH CREEK

.5 MI S. OF BOWLES, Jefferson, CO

Built 1988 Load: 42.0 t ADT: 29,000

I70 ML

Fair

Over: Light Rail

JUST N OF 6TH AVENUE, Jefferson, CO

Built 2010 Load: 42.1 t ADT: 106,000

EATON ST

Fair

Over: SLOANS LAKE DRAINAGE

.1 MI S OF 18TH AVE, Jefferson, CO

Built 1982 Load: 42.4 t ADT: 753

WELCH AVENUE

Fair

Over: BEAR CREEK

S OF HWY 74 IN KITTREDGE, Jefferson, CO

Built 1988 Load: 43.2 t ADT: 537

RAMP TO I 70 EBND

Fair

Over: CLEAR CREEK, BP R

RAMP FROM SH121 TO EB I70, Jefferson, CO

Built 1981 Load: 43.5 t ADT: 46,000

SH 121 ML

Fair

Over: RALSTON CREEK

JUST N. OF RALSTON RD, Jefferson, CO

Built 1996 Load: 46.0 t ADT: 41,000

MCINTYRE ST

Fair

Over: FARMERS HIGHLINE CANAL

MCINTYRE/67TH/LUPINE CIR, Jefferson, CO

Built 1994 Load: 46.3 t ADT: 223

COUNTY ROAD 73

Fair

Over: BEAR CREEK

AT JCT W/ HWY 74, Jefferson, CO

Built 2003 Load: 46.3 t ADT: 15,760

SH 58 ML

Fair

Over: CO.RD,RR SPUR

EAST OF GOLDEN, Jefferson, CO

Built 2010 Load: 46.7 t ADT: 19,000

COUNTY ROAD 126

Fair

Over: SOUTH PLATTE RIVER

AT THE TOWN OF DECKERS, Jefferson, CO

Built 1997 Load: 46.9 t ADT: 944

MILLER STREET

Fair

Over: LENA GULCH

JUST SOUTH OF 38TH AVE, Jefferson, CO

Built 1981 Load: 47.9 t ADT: 243

SH 72 ML

Fair

Over: COAL CREEK

2.3 MI W OF JCT SH 93, Jefferson, CO

Built 1939 Load: 48.6 t ADT: 5,100

PARFET STREET

Fair

Over: LENA GULCH

.7 MI N OF 32ND AVENUE, Jefferson, CO

Built 1986 Load: 48.8 t ADT: 746

ALKIRE STREET

Fair

Over: CROKE CANAL

0.8 MI N OF 72ND AVE, Jefferson, CO

Built 1992 Load: 49.2 t ADT: 4,326

SIMMS STREET

Fair

Over: LEYDEN CREEK

0.15 MI S. OF 72ND AVE, Jefferson, CO

Built 2007 Load: 49.4 t ADT: 10,304

DEPEW ST

Fair

Over: SLOANS LAKE DRAINAGE

JUST S OF 18TH AVENUE, Jefferson, CO

Built 1982 Load: 50.3 t ADT: 2,639

HARLAN CIRCLE

Fair

Over: SANDERSON GULCH

0.05 MI NORTH OF JEWELL, Jefferson, CO

Built 2002 Load: 50.8 t ADT: 245

COUNTY ROAD 74

Fair

Over: UPPER BEAR CREEK

1.4 MI W JCT EVRGN LAKE, Jefferson, CO

Built 1992 Load: 51.3 t ADT: 1,436

SHADY LANE

Fair

Over: BEAR CREEK

IN IDLEDALE, Jefferson, CO

Built 1987 Load: 51.6 t ADT: 117

NEWCOMBE COURT

Fair

Over: VAN BIBBER CREEK

JUST NORTH OF 58TH AVE, Jefferson, CO

Built 1979 Load: 52.1 t ADT: 379

SH 95 ML

Fair

Over: LAKEWOOD GULCH

IN LAKEWOOD, Jefferson, CO

Built 1955 Load: 52.6 t ADT: 33,000

MCINTYRE STREET

Fair

Over: FARMERS HIGHLINE CANAL

1.6 MI N OF 44TH AVE, Jefferson, CO

Built 2019 Load: 53.1 t ADT: 17,056

US 285 ML

Fair

Over: TURKEY CREEK

BELOW 285 & C470 INTE, Jefferson, CO

Built 1968 Load: 54.2 t ADT: 39,000

92ND AVENUE

Fair

Over: FARMERS HIGHLINE CANAL

0.2 MI W OF PIERCE ST, Jefferson, CO

Built 1985 Load: 54.3 t ADT: 10,995

58TH AVENUE

Fair

Over: VAN BIBBER CREEK

AT INTERSECTION OF NELSON, Jefferson, CO

Built 1979 Load: 55.1 t ADT: 14,687

58TH AVENUE

Fair

Over: VAN BIBBER CREEK

JUST WEST OF KIPLING PKWY, Jefferson, CO

Built 1979 Load: 55.2 t ADT: 14,429

SIMMS STREET

Fair

Over: FARMERS HIGHLINE CANAL

1.56 MI N OF 64TH AVE, Jefferson, CO

Built 1987 Load: 55.4 t ADT: 12,247

SH 391 ML

Fair

Over: LENA GULCH

N SIDE OF 39TH AVE, Jefferson, CO

Built 1981 Load: 56.2 t ADT: 37,000

RAMP TO SH 470 EBD

Fair

Over: ROONEY RD

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

Built 1987 Load: 58.7 t ADT: 35,000

SH 121 ML

Fair

Over: BURNS DRAW

3.4 MI S OF JCT SH 470, Jefferson, CO

Built 1968 Load: 62.8 t ADT: 22,000

72ND AVENUE

Fair

Over: FARMERS HIGHLINE CANAL

0.5 MI WEST OF INDIANA ST, Jefferson, CO

Built 1995 Load: 63.7 t ADT: 6,062

US6RMP &UNIONB

Fair

Over: LIGHT RAIL

UNION BLVD S OF 6TH/US 6, Jefferson, CO

Built 2010 Load: 64.8 t ADT: 63,000

SIMMS STREET

Fair

Over: CROKE CANAL

1.50 MI NORTH OF 64TH AVE, Jefferson, CO

Built 1995 Load: 69.4 t ADT: 12,247

SH 121 ML

Fair

Over: HIGHLINE CANAL

South of 92ND AVE., Jefferson, CO

Built 1968 Load: 81.6 t ADT: 43,000

SH 58 ML

Fair

Over: CROKE CANAL

EAST OF GOLDEN, Jefferson, CO

Built 1970 Load: 89.8 t ADT: 19,000

SH 93 ML

Fair

Over: TUCKER GULCH

1 MI NO OF JCT SH 58, Jefferson, CO

Built 1996 Load: 89.8 t ADT: 24,000

SH 74 ML

Fair

Over: SAWMILL GULCH

IN IDLEDALE, Jefferson, CO

Built 1999 Load: 89.8 t ADT: 3,300

US 285 ML

Fair

Over: NORTH TURKEY CREEK

6 MI W OF C470, Jefferson, CO

Built 1948 Load: 89.8 t ADT: 26,000

US 6 ML

Fair

Over: DRAW

1 Mi W of SH470, Jefferson, CO

Built 1951 Load: 89.8 t ADT: 32,000

SH 74 ML

Fair

Over: GAME CROSSING

NEAR BERGEN PARK, Jefferson, CO

Built 1996 Load: 90.8 t ADT: 18,000

EL DIENTE ST

Fair

Over: VAN BIBBER CREEK

0.1 M N OF 58TH AVENUE, Jefferson, CO

Built 1999 Load: 94.9 t ADT: 908

58TH AVE AND IND

Fair

Over: VAN BIBBER CREEK

.10 MI W OF INDEPENDENCE, Jefferson, CO

Built 2006 Load: 99.9 t ADT: 21,216

64TH PARKWAY

Fair

Over: S BLDR DIVERSION CANAL

0.3 MI EAST OF SH 93, Jefferson, CO

Built 2000 Load: 99.9 t ADT: 6,792

64TH AVENUE

Fair

Over: LOCAL DRAINAGE

1.1 MI EAST OF SH 93, Jefferson, CO

Built 2000 Load: 99.9 t ADT: 183

HARLAN STREET

Fair

Over: LITTLE DRY CREEK

0.2 MI SOUTH OF 80TH AVE, Jefferson, CO

Built 1970 Load: 99.9 t ADT: 2,165

SH 58 ML

Fair

Over: ARAPAHOE DITCH

1.6 MI E OF JCT SH 93, Jefferson, CO

Built 1970 Load: 99.9 t ADT: 19,000

SH 93 ML

Fair

Over: LEYDEN GULCH

6.3 MILES N. SH 58, Jefferson, CO

Built 1999 Load: 99.9 t ADT: 17,000

SH 93 ML

Fair

Over: RALSTON RESERVOIR OVRFLW

5.3 MI N OF JCT SH 58, Jefferson, CO

Built 1984 Load: 99.9 t ADT: 19,000

SH 8 ML

Fair

Over: DRAW

IN MORRISON, Jefferson, CO

Built 1934 Load: 99.9 t ADT: 4,000
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.