Weston County, WY

43 public highway bridges

Weston County Bridge Snapshot

Weston County, Wyoming contains 43 public highway bridges in the FHWA National Bridge Inventory. Roughly 25.6% are rated “Good,” 65.1% “Fair,” 9.3% “Poor,” and 9.3% 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 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.

43
Total Bridges
25.6%
Good
9.3%
Poor
9.3%
Structurally Deficient

Condition Distribution

Good
25.6% (11)
Fair
65.1% (28)
Poor
9.3% (4)
SD
9.3% (4)

All Bridges (43)

US 16

Fair

Over: Oil Creek

Upton - Newcastle, Weston, WY

Built 1954 Load: 20.6 t ADT: 1,390

US 16

Fair

Over: Alum Creek

Upton - Newcastle, Weston, WY

Built 1957 Load: 23.9 t ADT: 1,390

WYO 450

Fair

Over: Mush Creek

Newcastle-Clareton Road, Weston, WY

Built 1989 Load: 29.0 t ADT: 763

N Seneca Avenue

Fair

Over: Cambria Creek

Newcastle Streets, Weston, WY

Built 1964 Load: 30.0 t ADT: 436

US 16

Fair

Over: BNSF Railway

Upton - Newcastle, Weston, WY

Built 1970 Load: 30.4 t ADT: 1,673

US 16 Bypass

Fair

Over: Cambria Creek

Newcastle, Weston, WY

Built 1977 Load: 30.8 t ADT: 2,934

WYO 116 S

Fair

Over: BNSF Railway

Upton - Jct WYO 450, Weston, WY

Built 1980 Load: 30.8 t ADT: 514

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 31.8 t ADT: 410

US 16

Fair

Over: Cambria Creek

Newcastle, Weston, WY

Built 1973 Load: 32.7 t ADT: 3,141

WYO 450

Fair

Over: Oil Creek

Newcastle-Clareton Road, Weston, WY

Built 1989 Load: 32.7 t ADT: 763

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 32.7 t ADT: 410

US 16

Fair

Over: Turner Creek

Upton - Newcastle, Weston, WY

Built 1971 Load: 33.6 t ADT: 1,673

US 85

Fair

Over: BNSF Railway

Mule Cr Jct - Newcastle, Weston, WY

Built 1963 Load: 34.5 t ADT: 2,041

US 16

Fair

Over: Pine Creek

Upton - Newcastle, Weston, WY

Built 1971 Load: 34.5 t ADT: 1,673

We Cnty Rd 7A

Fair

Over: Cheyenne River

16 Miles S.W. Of Clareton, Weston, WY

Built 1981 Load: 34.5 t ADT: 32

WYO 116 S

Fair

Over: Coyote Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 34.5 t ADT: 309

WYO 116 S

Fair

Over: North Fork Soda Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 34.5 t ADT: 309

WYO 116 S

Fair

Over: South Fork Soda Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 34.5 t ADT: 309

WYO 450

Fair

Over: Black Thunder Creek

Newcastle - Jct WYO 59, Weston, WY

Built 1981 Load: 35.4 t ADT: 723

WYO 116 S

Fair

Over: Iron Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 35.4 t ADT: 309

WYO 116 N

Fair

Over: Mason Creek

17.13 Mi S. Of Sundance, Weston, WY

Built 1989 Load: 37.8 t ADT: 410

WYO 116 N

Fair

Over: Mason Creek

Sundance-Upton Road, Weston, WY

Built 1989 Load: 38.1 t ADT: 317

WYO 116 S

Fair

Over: Beaver Creek

Upton-Clareton Road, Weston, WY

Built 1990 Load: 38.1 t ADT: 309

US 16 Bypass

Fair

Over: BNSF Railway

Newcastle, Weston, WY

Built 1976 Load: 38.2 t ADT: 5,049

WYO 450

Fair

Over: South Beaver Creek

Newcastle-Reno Jct Road, Weston, WY

Built 2000 Load: 40.8 t ADT: 679

WYO 450

Fair

Over: Lodgepole Creek

Newcastle-Reno Jct, Weston, WY

Built 2004 Load: 45.4 t ADT: 618

WYO 450

Fair

Over: Beaver Creek

Newcastle-Reno Jct Road, Weston, WY

Built 1998 Load: 46.3 t ADT: 763

We Cnty Rd 3

Fair

Over: Beaver Creek

15 Mi. S.E Of Newcastle, Weston, WY

Built 1997 Load: 49.9 t ADT: 22

US 16

Good

Over: Skull Creek

Upton - Newcastle, Weston, WY

Built 1958 Load: 24.9 t ADT: 1,749

We Cnty Rd 54

Good

Over: Black Thunder Creek

32 Miles SW of Newcastle, Weston, WY

Built 2021 Load: 28.8 t ADT: 31

US 16

Good

Over: Whoopup Creek

Newcastle - S Dak Line, Weston, WY

Built 1959 Load: 30.8 t ADT: 1,881

US 16

Good

Over: Salt Creek

Newcastle - S Dak Line, Weston, WY

Built 1959 Load: 31.8 t ADT: 1,658

US 85

Good

Over: Beaver Creek

Mule Cr Jct-Newcastle, Weston, WY

Built 1993 Load: 32.7 t ADT: 1,079

We Cnty Rd 3

Good

Over: South Beaver Creek

16 Miles S. Of Newcastle, Weston, WY

Built 1997 Load: 32.7 t ADT: 22

WYO 116 S

Good

Over: West Fork Hay Creek

Upton South, Weston, WY

Built 2005 Load: 32.7 t ADT: 286

WYO 450

Good

Over: Skull Creek

Newcastle-Clareton Road, Weston, WY

Built 1989 Load: 33.3 t ADT: 763

US 16

Good

Over: Stockade Beaver Creek

Newcastle - S Dak Line, Weston, WY

Built 1959 Load: 35.4 t ADT: 1,658

WYO 116 S

Good

Over: Lodgepole Creek

Upton - Jct WYO 450, Weston, WY

Built 1979 Load: 38.1 t ADT: 203

WYO 451

Good

Over: Beaver Creek

Osage West, Weston, WY

Built 1989 Load: 40.8 t ADT: 99

We Cnty Rd 1A

Poor

Over: BNSF Railway

T44N R061W S10, Weston, WY

Built 1929 Load: 20.6 t ADT: 136

US 16

Poor

Over: E Branch Wind Creek

Moorcroft - Upton, Weston, WY

Built 1966 Load: 32.7 t ADT: 1,326

We Cnty Rd 1A

Structurally Deficient

Over: Beaver Creek

23 Miles Se Of Newcastle, Weston, WY

Built 1933 ADT: 136

We Cnty Rd 1A

Structurally Deficient

Over: Unnamed Draw

23 Miles Se. Of Newcastle, Weston, WY

Built 1933 Load: 10.9 t ADT: 136

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