Johnson County, WY

204 public highway bridges

Johnson County Bridge Snapshot

Johnson County, Wyoming contains 204 public highway bridges in the FHWA National Bridge Inventory. Roughly 22.5% are rated “Good,” 46.1% “Fair,” 2.5% “Poor,” and 2.5% 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.

204
Total Bridges
22.5%
Good
2.5%
Poor
2.5%
Structurally Deficient

Condition Distribution

Good
22.5% (46)
Fair
46.1% (94)
Poor
2.5% (5)
SD
2.5% (5)

All Bridges (204)

WYO 191

Fair

Over: North Fork Powder River

Kaycee-Mayoworth, Johnson, WY

Built 1999 Load: 40.8 t ADT: 68

Lobban Avenue

Fair

Over: Clear Creek

Buffalo Streets, Johnson, WY

Built 2004 Load: 46.3 t ADT: 89

US 16

Fair

Over: Clear Creek

Buffalo-Ucross, Johnson, WY

Built 1990 Load: 50.8 t ADT: 378

FDR 373

Good

Over: MIDDLE FORK CLEAR CREEK

.50 MI WEST OF HWY 16, Johnson, WY

Built 1959 Load: 19.1 t ADT: 25

Jo Cnty Rd 1

Good

Over: North Rock Creek

15 Mi Nw Of Buffalo, Johnson, WY

Built 2010 Load: 22.5 t ADT: 165

Jo Cnty Rd 1

Good

Over: South Rock Creek

14 Mi Nw Of Buffalo, Johnson, WY

Built 2010 Load: 22.5 t ADT: 165

Jo Cnty Rd 11A

Good

Over: Rock Creek

6 Mi Nw Of Buffalo, Johnson, WY

Built 2013 Load: 24.3 t ADT: 69

WYO 190

Good

Over: Cottonwood Creek

Kaycee-Barnum Road, Johnson, WY

Built 2007 Load: 24.5 t ADT: 216

WYO 190

Good

Over: Alkali Creek

Kaycee-Barnum Road, Johnson, WY

Built 2007 Load: 24.5 t ADT: 216

I-25 SBL

Good

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 27.2 t ADT: 1,770

WYO 196

Good

Over: Middle Fork Powder River

Kaycee, Johnson, WY

Built 1977 Load: 28.1 t ADT: 1,320

FDR 373

Good

Over: MIDDLE FORK CLEAR CREEK

0.9 MI ON FDR 373, Johnson, WY

Built 1993 Load: 28.5 t ADT: 50

I-25 NBL

Good

Over: S F Crazy Woman Creek

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 29.0 t ADT: 1,573

I-25 SBL

Good

Over: S F Crazy Woman Creek

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 29.0 t ADT: 1,472

I-25 NBL

Good

Over: Bull Creek

Kaycee - Buffalo, Johnson, WY

Built 1969 Load: 29.0 t ADT: 1,967

I-25 SBL

Good

Over: Bull Creek

Kaycee - Buffalo, Johnson, WY

Built 1969 Load: 29.0 t ADT: 1,770

I-25 NBL

Good

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 29.9 t ADT: 1,967

I-25 SBL

Good

Over: Machinery Pass

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 29.9 t ADT: 1,770

I-90 EBL

Good

Over: Rock Creek

Sheridan - Buffalo, Johnson, WY

Built 1963 Load: 31.0 t ADT: 2,750

I-90 WBL

Good

Over: Rock Creek

Sheridan - Buffalo, Johnson, WY

Built 1963 Load: 31.0 t ADT: 3,045

I-90 EBL

Good

Over: Crazy Woman Creek

Buffalo - Gillette, Johnson, WY

Built 1961 Load: 31.8 t ADT: 2,067

I-90 WBL

Good

Over: Crazy Woman Creek

Buffalo - Gillette, Johnson, WY

Built 1961 Load: 31.8 t ADT: 2,013

I-25 NBL

Good

Over: North Fork Powder River

Kaycee - Buffalo, Johnson, WY

Built 1971 Load: 32.0 t ADT: 1,573

I-25 NBL and SBL

Good

Over: Clear Creek

Buffalo Marginal, Johnson, WY

Built 1963 Load: 32.7 t ADT: 1,876

US 16

Good

Over: French Creek

Buffalo, Johnson, WY

Built 1963 Load: 32.7 t ADT: 2,930

Jo Cnty Rd 265

Good

Over: Unnamed Draw

18.5 Miles S. Of Buffalo, Johnson, WY

Built 1960 Load: 32.7 t ADT: 34

WYO 196

Good

Over: Beaver Creek

T46W R082N S02, Johnson, WY

Built 1989 Load: 32.7 t ADT: 48

WYO 196

Good

Over: M Fork Crazy Woman Creek

Kaycee-Buffalo, Johnson, WY

Built 1989 Load: 32.7 t ADT: 48

WYO 193

Good

Over: Little Piney Creek

Sheridan-Buffalo, Johnson, WY

Built 1947 Load: 32.7 t ADT: 599

WYO 196

Good

Over: Antelope Creek

Kaycee-Buffalo, Johnson, WY

Built 1967 Load: 32.7 t ADT: 309

I-25 NBL

Good

Over: Antelope Creek

Kaycee - Buffalo, Johnson, WY

Built 1967 Load: 32.7 t ADT: 1,573

I-25 SBL

Good

Over: Antelope Creek

Kaycee - Buffalo, Johnson, WY

Built 1967 Load: 32.7 t ADT: 1,472

WYO 191

Good

Over: Unnamed Draw

Kaycee-Mayoworth, Johnson, WY

Built 1971 Load: 32.7 t ADT: 491

I-90 EBL

Good

Over: Middle Fork Shell Creek

Sheridan - Buffalo, Johnson, WY

Built 2001 Load: 32.7 t ADT: 3,533

I-90 WBL

Good

Over: Middle Fork Shell Creek

Sheridan - Buffalo, Johnson, WY

Built 2001 Load: 32.7 t ADT: 3,700

I-25 SBL

Good

Over: M Fork Crazy Woman Creek

Kaycee - Buffalo, Johnson, WY

Built 1968 Load: 33.0 t ADT: 1,472

Jo Cnty Rd 259

Good

Over: Dead Horse Creek

31 Mi Se Of Buffalo, Johnson, WY

Built 2008 Load: 35.1 t ADT: 97

WYO 196

Good

Over: S F Crazy Woman Creek

Kaycee-Buffalo, Johnson, WY

Built 1989 Load: 35.4 t ADT: 48

US 16

Good

Over: Clear Creek

Buffalo, Johnson, WY

Built 2010 Load: 37.2 t ADT: 2,930

FSR 389

Good

Over: NORTH FORK CLEAR CREEK

0.3 MI ON FSR 389, Johnson, WY

Built 2004 Load: 37.6 t ADT: 5

Jo Cnty Rd 195

Good

Over: Crazy Woman Creek

30 Miles N.E. Of Buffalo, Johnson, WY

Built 1987 Load: 39.0 t ADT: 97

Jo Cnty Rd 48

Good

Over: M Fork Crazy Woman Creek

20 Mi S Of Buffalo, Johnson, WY

Built 2000 Load: 40.8 t ADT: 30

WYO 193

Good

Over: Piney Creek

Jct I-90 - Story, Johnson, WY

Built 2017 Load: 42.1 t ADT: 599

WYO 193

Good

Over: Piney Creek

Jct I-90 - Story, Johnson, WY

Built 2017 Load: 43.4 t ADT: 599

Jo Cnty Rd 43

Good

Over: Crazy Woman Creek

13 Mi Sw Of Buffalo, Johnson, WY

Built 2007 Load: 44.5 t ADT: 37

S Buritt Avenue

Good

Over: Clear Creek

Buffalo Streets, Johnson, WY

Built 2004 Load: 46.3 t ADT: 89

WYO 190

Good

Over: Red Fork Powder River

Kaycee-Barnum Road, Johnson, WY

Built 2007 Load: 46.3 t ADT: 216

Jo Cnty Rd 265

Good

Over: N F Crazy Woman Creek

20 Mi S Of Buffalo, Johnson, WY

Built 2006 Load: 49.0 t ADT: 34

Jo Cnty Rd 14

Good

Over: N F Crazy Woman Creek

10 Mi S. Of Buffalo, Johnson, WY

Built 2005 Load: 59.9 t ADT: 53

Jo Cnty Rd 14

Poor

Over: N F Crazy Woman Creek

13 Mi. S.W. Of Buffalo, Johnson, WY

Built 1997 Load: 10.2 t ADT: 53

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