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)

CENTER AVENUE

Poor

Over: DRAINAGE

W. OF KIPLING STREET, Jefferson, CO

Built 1942 Load: 22.7 t ADT: 1,100

I 70 ML

Poor

Over: HARLAN STREET

IN WHEATRIDGE, Jefferson, CO

Built 1967 Load: 25.9 t ADT: 92,000

I 70 ML EBND

Poor

Over: MOSS STREET, W 7TH AVE

0.3 MI E OF JCT US 6, Jefferson, CO

Built 1969 Load: 26.3 t ADT: 35,000

I 76 ML EBND

Poor

Over: CLEAR CREEK

1.4 M E OF JCT SH 121, Jefferson, CO

Built 1984 Load: 27.4 t ADT: 38,000

I 70 ML WBND

Poor

Over: WEST 20TH AVE

2 MI W OF JCT SH 58, Jefferson, CO

Built 1968 Load: 28.2 t ADT: 45,500

AVENUE F

Poor

Over: BEAR CREEK

S OF SH 74 IN KITTREDGE, Jefferson, CO

Built 1987 Load: 28.4 t ADT: 540

COUNTY ROAD 67

Poor

Over: SOUTH PLATTE RIVER

5 MI NORTH OF DECKERS, Jefferson, CO

Built 1990 Load: 29.8 t ADT: 725

WARD ROAD

Poor

Over: RALSTON CREEK

JUST NORTH OF 70TH AVE, Jefferson, CO

Built 1969 Load: 32.7 t ADT: 15,435

SH 391 ML

Poor

Over: CLEAR CREEK

KIPLING 0.65 MI S OF I70, Jefferson, CO

Built 1969 Load: 32.7 t ADT: 37,000

I 76 ML EBND

Poor

Over: MARSHALL STREET

.75 MI E. OF WADSWORTH, Jefferson, CO

Built 1980 Load: 44.3 t ADT: 38,000

I 76 ML WBND

Poor

Over: CLEAR CREEK

1.1 M W OF JCT SH 95, Jefferson, CO

Built 1984 Load: 47.6 t ADT: 38,000

I 76 ML WBND

Poor

Over: MARSHALL STREET

IN ARVADA, Jefferson, CO

Built 1980 Load: 52.8 t ADT: 38,000

YOUNGFIELD CT

Poor

Over: LOCAL DRAINAGE

N OF ALAMEDA AT PARK SER., Jefferson, CO

Built 1975 Load: 99.9 t ADT: 1,460

KENTUCKY DR

Poor

Over: WEIR GULCH

1/2 BLK W OF PIERCE ST, Jefferson, CO

Built 1970 Load: 99.9 t ADT: 5,467

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.