Crook County, WY

176 public highway bridges

Crook County Bridge Snapshot

Crook County, Wyoming contains 176 public highway bridges in the FHWA National Bridge Inventory. Roughly 26.1% are rated “Good,” 51.7% “Fair,” 1.1% “Poor,” and 1.1% 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.

176

Total Bridges

26.1%

Good

1.1%

Poor

1.1%

Structurally Deficient

Condition Distribution

Good

26.1% (46)

Fair

51.7% (91)

Poor

1.1% (2)

SD

1.1% (2)

All Bridges (176)

Sort:

I-90 EBL

Over: Cr CR 68 (D Road)

Gillette - Moorcroft, Crook, WY

Built 1969 ADT: 380

I-90 WBL

Over: Cr CR 68 (D Road)

Gillette - Moorcroft, Crook, WY

Built 1969 ADT: 380

I-90 EBL

Over: US 14 / 16

Moorcroft Marginal, Crook, WY

Built 1966 ADT: 2,664

I-90 WBL

Over: US 14 / 16

Moorcroft Marginal, Crook, WY

Built 1966 ADT: 2,605

I-90 EBL

Over: US 14

Moorcroft Marginal, Crook, WY

Built 1966 ADT: 2,334

I-90 WBL

Over: US 14

Moorcroft Marginal, Crook, WY

Built 1966 ADT: 2,334

I-90 EBL

Over: I-90 Bus

Moorcroft Marginal, Crook, WY

Built 1962 ADT: 2,930

I-90 WBL

Over: I-90 Bus.

Moorcroft Marginal, Crook, WY

Built 1962 ADT: 1,448

I-90 EBL

Over: CR 201 (Wind Creek Road)

Moorcroft - Sundance, Crook, WY

Built 1962 ADT: 7

I-90 WBL

Over: CR 201 (Wind Creek Road)

Moorcroft - Sundance, Crook, WY

Built 1962 ADT: 7

Cr Cnty Rd 160

Over: I-90

Moorcroft - Sundance, Crook, WY

Built 1962 ADT: 1,833

Cr Cnty Rd 93

Over: I-90

Moorcroft - Sundance, Crook, WY

Built 1962 ADT: 1,833

I-90 EBL

Over: Inyan Kara Creek Road

Moorcroft - Sundance, Crook, WY

Built 1961 ADT: 74

I-90 WBL

Over: Inyan Kara Creek Road

Moorcroft - Sundance, Crook, WY

Built 1961 ADT: 74

I-90 EBL

Over: Cr CR 215 (Wakefield Rd)

Moorcroft - Sundance, Crook, WY

Built 1961 ADT: 61

I-90 WBL

Over: Cr CR 215 (Wakefield Rd)

Moorcroft - Sundance, Crook, WY

Built 1961 ADT: 61

I-90 EBL

Over: CR 216 (Beaver Creek Rd)

Moorcroft - Sundance, Crook, WY

Built 1960 ADT: 126

I-90 WBL

Over: CR 216 (Beaver Creek Rd)

Moorcroft - Sundance, Crook, WY

Built 1960 ADT: 126

I-90 EBL

Over: CR 93 (Old Sundance Rd)

Moorcroft - Sundance, Crook, WY

Built 1959 ADT: 61

I-90 WBL

Over: CR 93 (Old Sundance Rd)

Moorcroft - Sundance, Crook, WY

Built 1959 ADT: 61

I-90 EBL

Over: US 14

Sundance Marginal, Crook, WY

Built 1969 ADT: 2,260

I-90 WBL

Over: US 14

Sundance Marginal, Crook, WY

Built 1969 ADT: 1,780

I-90 EBL

Over: US 14

Sundance Marginal, Crook, WY

Built 1971 ADT: 2,260

I-90 WBL

Over: US 14

Sundance Marginal, Crook, WY

Built 1972 ADT: 3,417

I-90 EBL

Over: WYO 585

Sundance Marginal, Crook, WY

Built 1972 ADT: 1,634

I-90 WBL

Over: WYO 585

Sundance Marginal, Crook, WY

Built 1972 ADT: 1,629

I-90 EBL

Over: I-90 Bus. / US 14

Sundance Marginal, Crook, WY

Built 1972 ADT: 2,235

I-90 WBL

Over: I-90 Bus. / US 14

Sundance Marginal, Crook, WY

Built 1972 ADT: 2,134

I-90 EBL

Over: Cr CR 207 (Moskee Road)

Sundance - S Dakota Line, Crook, WY

Built 1976 ADT: 45

I-90 WBL

Over: Moskee Road

Sundance - S Dakota Line, Crook, WY

Built 1976 ADT: 126

I-90 EBL

Over: Cr CR 108 (Rifle Pit Rd)

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 54

I-90 WBL

Over: Cr CR 108 (Rifle Pit Rd)

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 54

Cr Cnty Rd 129

Over: I-90

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 2,665

I-90 EBL

Over: Cr CR 108 (Rifle Pit Rd)

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 54

I-90 WBL

Over: Cr CR 108 (Rifle Pit Rd)

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 54

I-90 EBL

Over: WYO 111

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 809

I-90 WBL

Over: WYO 111

Sundance - S Dakota Line, Crook, WY

Built 1977 ADT: 809

Cr Cnty Rd 108

Over: South Redwater Creek

1 Mi. S.W. Of Beulah, Crook, WY

Built 1965 Load: 7.8 t ADT: 54

US 14

Over: S Fork Sundance Creek

Sundance - Jct I-90, Crook, WY

Built 1954 Load: 19.6 t ADT: 3,417

WYO 51

Over: Well Creek

Gillette - Moorcroft, Crook, WY

Built 1956 Load: 20.9 t ADT: 1,323

WYO 51

Over: Donkey Creek

Gillette - Moorcroft, Crook, WY

Built 1956 Load: 20.9 t ADT: 1,323

Cr Cnty Rd 268

Over: Inyan Kara Creek

15 Mi. S.W. Of Sundance, Crook, WY

Built 1960 Load: 20.9 t ADT: 74

I-90 Service Road

Over: Sundance Creek

Sundance - S Dakota Line, Crook, WY

Built 1954 Load: 22.2 t ADT: 440

I-90 EBL

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 22.9 t ADT: 2,063

I-90 EBL

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 23.2 t ADT: 2,063

I-90 WBL

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1963 Load: 23.5 t ADT: 1,833

I-90 EBL

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1961 Load: 23.8 t ADT: 2,063

I-90 Service Road

Over: Alkali Creek

Sundance - S Dakota Line, Crook, WY

Built 1956 Load: 24.2 t ADT: 270

I-90 EBL

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 24.5 t ADT: 2,133

I-90 WBL

Over: Machinery Pass

Moorcroft - Sundance, Crook, WY

Built 1962 Load: 24.5 t ADT: 1,928

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