Carbon County, WY

207 public highway bridges

Carbon County Bridge Snapshot

Carbon County, Wyoming contains 207 public highway bridges in the FHWA National Bridge Inventory. Roughly 32.4% are rated “Good,” 42% “Fair,” 6.8% “Poor,” and 6.8% 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 WY 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.

207
Total Bridges
32.4%
Good
6.8%
Poor
6.8%
Structurally Deficient

Condition Distribution

Good
32.4% (67)
Fair
42% (87)
Poor
6.8% (14)
SD
6.8% (14)

All Bridges (207)

WYO 230

Good

Over: Cow Creek

Saratoga - Colo Line, Carbon, WY

Built 1963 Load: 32.7 t ADT: 1,304

WYO 70

Good

Over: Cottonwood Creek

Baggs - Riverside, Carbon, WY

Built 1948 Load: 32.7 t ADT: 613

WYO 72

Good

Over: Slough Creek

I-80 to Elk Mountain, Carbon, WY

Built 1975 Load: 32.7 t ADT: 365

Cb Cnty Rd 320

Good

Over: Sand Creek

13 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1985 Load: 32.7 t ADT: 11

WYO 487

Good

Over: Sand Creek

Medicine Bow-Casper, Carbon, WY

Built 1985 Load: 32.7 t ADT: 546

WYO 230

Good

Over: Big Creek

Riverside-Colorado Line, Carbon, WY

Built 1988 Load: 32.7 t ADT: 478

WYO 789

Good

Over: Robbers Gulch

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 789

Good

Over: Little Robbers Gulch

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 70

Good

Over: Savery Creek

Baggs - Encampment, Carbon, WY

Built 1997 Load: 32.7 t ADT: 613

WYO 130

Good

Over: Elk Hollow Creek

Snowy Range Road, Carbon, WY

Built 2002 Load: 32.7 t ADT: 741

WYO 72

Good

Over: Unnamed Draw

Hanna - Elk Mountain, Carbon, WY

Built 2009 Load: 32.7 t ADT: 176

WYO 789

Good

Over: Wildlife Crossing

Creston Jct - Baggs, Carbon, WY

Built 2009 Load: 32.7 t ADT: 1,793

Cb Cnty Rd 401

Good

Over: Sage Creek

25 Mi S Of Rawlins, Carbon, WY

Built 2010 Load: 32.7 t ADT: 71

Cb Cnty Rd 401

Good

Over: Little Sage Creek

21 Mi S Of Rawlins, Carbon, WY

Built 2010 Load: 32.7 t ADT: 355

WYO 789

Good

Over: Wildlife Crossing

Creston Jct - Baggs, Carbon, WY

Built 2012 Load: 32.7 t ADT: 1,793

WYO 130

Good

Over: South Brush Creek

12.58 Mi. E. 130, 230 Jct, Carbon, WY

Built 2012 Load: 32.7 t ADT: 723

US 30

Good

Over: St Marys Creek

Walcott Jt - Medicine Bow, Carbon, WY

Built 1950 Load: 33.0 t ADT: 648

I-80 WBL

Good

Over: UPRR

Rawlins Marginal, Carbon, WY

Built 1963 Load: 33.6 t ADT: 6,522

US 287

Good

Over: Unnamed Draw

Rawlins - Muddy Gap Jct, Carbon, WY

Built 1971 Load: 33.6 t ADT: 2,952

Cb Cnty Rd 660

Good

Over: Beaver Creek

7 Mi. NE of Riverside, Carbon, WY

Built 2021 Load: 34.0 t ADT: 68

WYO 13

Good

Over: Big Harrison Ditch

Rock River - Jct I-80, Carbon, WY

Built 1976 Load: 34.5 t ADT: 192

Cb Cnty Rd 3

Good

Over: Medicine Bow River

Elk Mountain-E Main St, Carbon, WY

Built 2016 Load: 35.0 t ADT: 121

I-80 WBL

Good

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1964 Load: 35.4 t ADT: 6,418

NFSR 105

Good

Over: MEDICINE BOW RIVER

4.7 MI SE OF NFSR 100, Carbon, WY

Built 1985 Load: 36.0 t ADT: 14

NFSR 100

Good

Over: NORTH BRUSH CREEK

5 MI. E OF TURPIN RESV, Carbon, WY

Built 1986 Load: 36.3 t ADT: 112

WYO 13

Good

Over: Rock Creek

Rock River - Jct I-80, Carbon, WY

Built 1976 Load: 36.3 t ADT: 350

WYO 789

Good

Over: Muddy Creek

Creston Jct - Colo Line, Carbon, WY

Built 1960 Load: 36.6 t ADT: 1,193

I-80 EBL

Good

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 37.2 t ADT: 5,683

WYO 789

Good

Over: Muddy Creek

Creston Jct - Colo Line, Carbon, WY

Built 1940 Load: 37.2 t ADT: 1,793

WYO 230

Good

Over: Encampment River

Saratoga - Colo Line, Carbon, WY

Built 1979 Load: 38.1 t ADT: 642

Cb Cnty Rd 1

Good

Over: Rock Creek

1 Mi W Of Mcfadden, Carbon, WY

Built 2012 Load: 38.1 t ADT: 82

3308: COW BUTTE R

Good

Over: Canary Grove

30 mi SW of Rawlins, WY, Carbon, WY

Built 2019 Load: 38.2 t ADT: 25

Cb Cnty Rd 561S

Good

Over: Savery Creek

0.5 Mi S.E. Of Savery, Carbon, WY

Built 2019 Load: 39.2 t ADT: 42

Cb Cnty Rd 710

Good

Over: Battle Creek

9 Miles E Of Savery, Carbon, WY

Built 2012 Load: 40.8 t ADT: 121

Cb Cnty Rd 99

Good

Over: Little Medicine Bow Rvr

27 Mi. N. Medicine Bow, Carbon, WY

Built 1997 Load: 41.7 t ADT: 9

NFSR 225

Good

Over: SOUTH FRENCH CREEK

8.5 MI. S. FROM SH 130, Carbon, WY

Built 1963 Load: 43.7 t ADT: 11

Unnamed Road

Good

Over: Boozer Creek

Saratoga Streets, Carbon, WY

Built 1999 Load: 44.5 t ADT: 59

WYO 130

Good

Over: North Platte River

8 Mi Se Of Saratoga, Carbon, WY

Built 2002 Load: 47.2 t ADT: 741

I-80 WBL

Good

Over: North Platte River

Rawlins - Laramie, Carbon, WY

Built 2002 Load: 48.1 t ADT: 6,418

US 30

Good

Over: Medicine Bow River

Medicine Bow-Laramie, Carbon, WY

Built 2009 Load: 49.0 t ADT: 840

NFSR 498

Good

Over: S. FORK BIG CREEK

6.53 MI WEST OF HWY 230, Carbon, WY

Built 2002 Load: 51.8 t ADT: 25

Cb Cnty Rd 297

Good

Over: UPRR

2 Mi. E. Of Hanna, Carbon, WY

Built 2003 Load: 54.4 t ADT: 166

Cb Cnty Rd 602

Good

Over: Little Savery Creek

20 Mi. N.E. Of Savery, Carbon, WY

Built 1984 Load: 59.9 t ADT: 97

Cb Cnty Rd 680

Poor

Over: Encampment River

4 Miles N. Of Encampment, Carbon, WY

Built 1915 Load: 4.9 t ADT: 70

Cb Cnty Rd 3

Poor

Over: Third Sand Creek

11 Mi. Ne Of Elk Mountain, Carbon, WY

Built 1965 Load: 5.9 t ADT: 82

Cb Cnty Rd 109

Poor

Over: Mill Creek

3 Mi Nw Of Elk Mountain, Carbon, WY

Built 1940 Load: 6.9 t ADT: 2

Texas Trail

Poor

Over: North Platte River

Saratoga, Carbon, WY

Built 1929 Load: 7.2 t ADT: 59

Cb Cnty Rd 608

Poor

Over: Cow Creek

18 Miles N. Of Baggs, Carbon, WY

Built 1950 Load: 10.8 t ADT: 66

I-80 Service Road

Poor

Over: North Platte River

Fort Steele Rest Area, Carbon, WY

Built 1930 Load: 22.2 t ADT: 265

Cb Cnty Rd 660

Poor

Over: North Platte River

12 Mi. E. Of Riverside, Carbon, WY

Built 1915 Load: 23.6 t ADT: 68

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