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)

Sort:

I-80 EBL

Over: 4 Mile Draw

Rock Springs - Rawlins, Carbon, WY

Built 1959 Load: 24.1 t ADT: 6,579

I-80 WBL

Over: 4 Mile Draw

Rock Springs - Rawlins, Carbon, WY

Built 1959 Load: 24.1 t ADT: 6,827

WYO 130

Over: North Platte River

Saratoga, Carbon, WY

Built 1949 Load: 24.3 t ADT: 2,065

3306: MUDDY CREEK

Over: MUDDY CREEK

26 Miles SW Rawlins, WY, Carbon, WY

Built 1985 Load: 24.9 t ADT: 25

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 25.1 t ADT: 5,811

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 25.4 t ADT: 5,683

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 25.4 t ADT: 5,747

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 25.8 t ADT: 5,739

3306: MUDDY CREEK

Over: MUDDY CREEK

27 Miles SW Rawlins, WY, Carbon, WY

Built 1985 Load: 25.9 t ADT: 25

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,820

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,905

I-80 EBL

Over: Canon Ditch

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,820

I-80 WBL

Over: Canon Ditch

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 27.2 t ADT: 5,905

Cb Cnty Rd 291

Over: Sage Creek

30 Mi. W.Of Shirley Basin, Carbon, WY

Built 1973 Load: 27.2 t ADT: 121

I-80 EBL

Over: Machinery Pass

Rawlins Marginal, Carbon, WY

Built 1963 Load: 27.4 t ADT: 6,494

I-80 WBL

Over: Machinery Pass

Rawlins Marginal, Carbon, WY

Built 1963 Load: 27.4 t ADT: 6,522

NFSR 452

Over: JACK CREEK

NEAR JACK CREEK CG, Carbon, WY

Built 1976 Load: 27.5 t ADT: 50

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 28.1 t ADT: 5,765

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 28.1 t ADT: 5,854

WYO 230

Over: Beaver Creek

Saratoga - Colo Line, Carbon, WY

Built 1981 Load: 28.1 t ADT: 642

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 29.0 t ADT: 5,747

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1969 Load: 29.0 t ADT: 5,820

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1969 Load: 29.0 t ADT: 5,905

US 287

Over: Muddy Creek

Muddy Gap Jct-WYO 28 Jct, Carbon, WY

Built 1968 Load: 29.0 t ADT: 546

I-80 EBL

Over: Medicine Bow River

Rawlins - Laramie, Carbon, WY

Built 1968 Load: 29.9 t ADT: 5,745

2411: WILD HORSE O

Over: MUDDY CREEK

7 mi N of Baggs, WY, Carbon, WY

Built 1993 Load: 30.1 t ADT: 50

I-80 WBL

Over: Medicine Bow River

Rawlins - Laramie, Carbon, WY

Built 1968 Load: 30.7 t ADT: 5,833

Cb Cnty Rd 2E

Over: Little Medicine Bow Rvr

3 Mi N.E Of Shirley Basin, Carbon, WY

Built 1991 Load: 30.8 t ADT: 17

Cb Cnty Rd 209

Over: Unnamed Draw

14 Mi. N.W. Of Encampment, Carbon, WY

Built 1986 Load: 31.0 t ADT: 10

SOUTH FORK MINER C

Over: South Fork Miner Creek

5 mi SW of Encampment, WY, Carbon, WY

Built 1996 Load: 31.4 t ADT: 50

NFSR 261

Over: MAIN FORK BOW RIVER

0.3 MI. W OF CR 101, Carbon, WY

Built 1964 Load: 31.8 t ADT: 17

I-80 EBL

Over: UPRR

Rawlins Marginal, Carbon, WY

Built 1962 Load: 31.8 t ADT: 6,057

I-80 WBL

Over: UPRR

Rawlins Marginal, Carbon, WY

Built 1962 Load: 31.8 t ADT: 6,093

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 31.8 t ADT: 5,683

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 31.8 t ADT: 5,747

I-80 EBL

Over: Rock Creek

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 31.8 t ADT: 5,820

I-80 WBL

Over: Rock Creek

Rawlins - Laramie, Carbon, WY

Built 1970 Load: 31.8 t ADT: 5,905

WYO 76

Over: UPRR

Sinclair, Carbon, WY

Built 1960 Load: 31.8 t ADT: 502

Cb Cnty Rd 607

Over: Little Snake River

1.5 Mi. S.W. Of Savery, Carbon, WY

Built 1986 Load: 32.0 t ADT: 81

3327: URANIUM ROAD

Over: Red Creek

14 mi W of Baggs, WY, Carbon, WY

Built 2005 Load: 32.1 t ADT: 30

Seminoe Road

Over: North Platte River

34.2 mi N-NE of Rawlins, Carbon, WY

Built 1989 Load: 32.4 t ADT: 60

I-80 EBL

Over: Separation Creek

Rock Springs - Rawlins, Carbon, WY

Built 1961 Load: 32.7 t ADT: 6,624

I-80 WBL

Over: Separation Creek

Rock Springs - Rawlins, Carbon, WY

Built 1961 Load: 32.7 t ADT: 6,663

I-80 EBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 32.7 t ADT: 6,360

I-80 WBL

Over: Machinery Pass

Rawlins - Laramie, Carbon, WY

Built 1967 Load: 32.7 t ADT: 6,418

WYO 220

Over: Pete Creek

Muddy Gap Jct-WYO 487 Jct, Carbon, WY

Built 1968 Load: 32.7 t ADT: 1,771

WYO 13

Over: 3 Mile Creek

Rock River - Jct I-80, Carbon, WY

Built 1966 Load: 32.7 t ADT: 192

WYO 487

Over: Little Medicine Bow Rvr

Medicine Bow - Jt WYO 220, Carbon, WY

Built 1959 Load: 32.7 t ADT: 499

WYO 789

Over: Cottonwood Creek

Creston Jct-Baggs, Carbon, WY

Built 1957 Load: 32.7 t ADT: 1,793

WYO 130

Over: Lake Creek

Walcott Jct-Saratoga, Carbon, WY

Built 1979 Load: 32.7 t ADT: 2,065

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026