Jackson County, CO

47 public highway bridges

Jackson County Bridge Snapshot

Jackson County, Colorado contains 47 public highway bridges in the FHWA National Bridge Inventory. Roughly 31.9% are rated “Good,” 63.8% “Fair,” 4.3% “Poor,” and 4.3% 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.

47
Total Bridges
31.9%
Good
4.3%
Poor
4.3%
Structurally Deficient

Condition Distribution

Good
31.9% (15)
Fair
63.8% (30)
Poor
4.3% (2)
SD
4.3% (2)

All Bridges (47)

County Road 24

Fair

Over: Little Grizzly Creek

2.7 Mi W of St Hwy 14, Jackson, CO

Built 1977 Load: 12.6 t ADT: 113

County Road 6W

Fair

Over: W Channel Michigan River

1.5 Mi W of St Hwy 125, Jackson, CO

Built 1970 Load: 15.5 t ADT: 179

County Road 12W

Fair

Over: N Fork N Platte River

11.9 Mi W of St Hwy 14, Jackson, CO

Built 1980 Load: 15.5 t ADT: 50

County Road 12E

Fair

Over: Canadian River

11.0 Mi E of St Hwy 14, Jackson, CO

Built 1985 Load: 15.9 t ADT: 42

County Road 5

Fair

Over: Chedsey Creek

0.2 Mi N of CR 24, Jackson, CO

Built 1962 Load: 18.6 t ADT: 20

County Road 12E

Fair

Over: Michigan River

0.9 Mi E of St Hwy 125, Jackson, CO

Built 1978 Load: 19.6 t ADT: 147

SH 14 ML

Fair

Over: GRIZZLY CREEK

17 MI NE OF JCT US 40, Jackson, CO

Built 1950 Load: 20.9 t ADT: 1,300

County Road 12W

Fair

Over: N Fork N Platte River

8.0 Mi W of St Hwy 14, Jackson, CO

Built 1985 Load: 21.8 t ADT: 110

County Road 1

Fair

Over: Crosby Creek

2.5 Mi S of CR 24, Jackson, CO

Built 1987 Load: 21.8 t ADT: 9

SH 14 ML

Fair

Over: COLORADO CREEK

6.1 MI E OF US 40, Jackson, CO

Built 1949 Load: 22.7 t ADT: 1,300

County Road 8

Fair

Over: Canadian River

2.9 Mi E St Hwy 125, Jackson, CO

Built 1996 Load: 23.4 t ADT: 22

SH 14 ML

Fair

Over: ARAPAHOE CREEK

10.1 MI N OF US 40, Jackson, CO

Built 1950 Load: 23.6 t ADT: 1,300

SH 14 ML

Fair

Over: GRIZZLY CREEK

10 MI W OF WALDEN, Jackson, CO

Built 1949 Load: 23.9 t ADT: 1,300

County Road 21I

Fair

Over: Illinois River

0.4 Mi E of St Hwy 125, Jackson, CO

Built 1980 Load: 25.8 t ADT: 57

County Road 41

Fair

Over: N. Fork Michigan River

1.3 Mi E of S.H. 14, Jackson, CO

Built 2006 Load: 25.9 t ADT: 184

County Road 34

Fair

Over: Buffalo Creek

0.8 Mi E of St Hwy 14, Jackson, CO

Built 1989 Load: 26.8 t ADT: 46

County Road 30

Fair

Over: Michigan River

0.4 Mi E of St Hwy 14, Jackson, CO

Built 1990 Load: 28.2 t ADT: 184

SH 125 ML

Fair

Over: WILLOW CREEK

35 MI N OF GRANBY, Jackson, CO

Built 1955 Load: 28.9 t ADT: 220

County Road 12W

Fair

Over: Hell Creek

8.2 Mi W of St Hwy 14, Jackson, CO

Built 1986 Load: 29.3 t ADT: 110

County Road 21

Fair

Over: Michigan River

0.1 Mi W of St Hwy 14, Jackson, CO

Built 1983 Load: 30.0 t ADT: 158

County Road 32

Fair

Over: Illinois River

0.9 Mi E of St Hwy 125, Jackson, CO

Built 1995 Load: 32.6 t ADT: 64

County Road 18

Fair

Over: Mallon Ditch

3.3 Mi W of Co Rd 12W, Jackson, CO

Built 1986 Load: 32.7 t ADT: 146

County Road 26

Fair

Over: Mutual Ditch

0.2 Mi W of St Hwy 14, Jackson, CO

Built 1993 Load: 32.9 t ADT: 75

County Road 20

Fair

Over: Roaring Fork River

5.3 Mi W of Co Rd, Jackson, CO

Built 1983 Load: 34.6 t ADT: 25

County Road 5

Fair

Over: Roaring Fork River

0.2 Mi So of Co Rd, Jackson, CO

Built 1980 Load: 36.8 t ADT: 62

SH 14 ML

Fair

Over: MICHIGAN RIVER

19 MI E. OF WALDEN, Jackson, CO

Built 1978 Load: 39.1 t ADT: 490

County Road 12W

Fair

Over: North Platte River

6.7 Mi W of St Hwy 14, Jackson, CO

Built 1993 Load: 40.8 t ADT: 180

SH 125 ML

Fair

Over: CANADIAN RIVER

0.3 MI N OF COWDREY, Jackson, CO

Built 1981 Load: 45.4 t ADT: 940

County Road 6W

Fair

Over: South Fork Big Creek

18.3 Mi W St Hwy 125, Jackson, CO

Built 1977 Load: 50.1 t ADT: 130

County Road 12E

Fair

Over: Michigan River Overflow

1.3 Mi E of St Hwy 125, Jackson, CO

Built 2013 Load: 99.9 t ADT: 147

NFSR 740.1

Good

Over: S. FORK MICHIGAN RIVER

3.1 MI S. OF S.H. 14, Jackson, CO

Built 1983 Load: 17.5 t ADT: 17

NFSR 615.1

Good

Over: NEWCOMB CREEK

3.8 MI N OF JCT 60/615, Jackson, CO

Built 2001 Load: 18.8 t ADT: 50

NFSR 496

Good

Over: ENCAMPMENT RIVER

3.7 MI. SE OF HOG PARK CG, Jackson, CO

Built 1967 Load: 24.3 t ADT: 216

NFSR 660.1

Good

Over: S. FORK BIG CREEK

AT BIG CREEK LAKE CG, Jackson, CO

Built 1977 Load: 26.2 t ADT: 48

County Road 18

Good

Over: North Platte River

0.1 Mi W of Co Rd 9, Jackson, CO

Built 1991 Load: 32.9 t ADT: 163

County Road 28

Good

Over: Buffalo Creek

2 MI E of St Hwy 14, Jackson, CO

Built 1989 Load: 32.9 t ADT: 45

SH 125 ML

Good

Over: NORTH PLATTE RIVER

16 MILES NORTH OF WALDEN, Jackson, CO

Built 1986 Load: 33.1 t ADT: 420

NFSR 106.1

Good

Over: EAST BRANCH WILLOW CREEK

1.4 MI INT 106 & SH 125, Jackson, CO

Built 2012 Load: 35.0 t ADT: 50

ROAD

Good

Over: MICHIGAN RIVER

NO DATA ENTERED, Jackson, CO

Built 2023 Load: 37.6 t ADT: 50

NFSR 780.1

Good

Over: S. FORK MICHIGAN RIVER

3.7 MI S. OF S.H. 14, Jackson, CO

Built 1984 Load: 43.1 t ADT: 17

County Road 6W

Good

Over: North Platte River

2.1 MI W of St Hwy 125, Jackson, CO

Built 2003 Load: 46.7 t ADT: 172

NFSR 770.1

Good

Over: S. FORK MIGHIGAN RIVER

4.5 MI. S. OF S.H. 14, Jackson, CO

Built 1966 Load: 48.3 t ADT: 17

SH 14 ML

Good

Over: GRIZZLY CREEK

8.5 MI NE OF JCT US 40, Jackson, CO

Built 2005 Load: 63.0 t ADT: 1,300

SH 125 ML

Good

Over: ILLINOIS RIVER

0.7 MI NORTH OF JCT SH 14, Jackson, CO

Built 1993 Load: 70.4 t ADT: 2,200

SH 125 ML

Good

Over: MICHIGAN RIVER

N. EDGE OF WALDEN, Jackson, CO

Built 2012 Load: 79.7 t ADT: 2,400

County Road 27

Poor

Over: Illinois River

0.6 Mi N of St Hwy 125, Jackson, CO

Built 1980 Load: 10.2 t ADT: 108

County Road 6W

Poor

Over: Michigan River

1.3 Mi W of St Hwy 125, Jackson, CO

Built 1958 Load: 26.6 t ADT: 179

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