Platte County, WY

163 public highway bridges

Platte County Bridge Snapshot

Platte County, Wyoming contains 163 public highway bridges in the FHWA National Bridge Inventory. Roughly 19% are rated “Good,” 45.4% “Fair,” 6.7% “Poor,” and 6.7% 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.

163

Total Bridges

19%

Good

6.7%

Poor

6.7%

Structurally Deficient

Condition Distribution

Good

19% (31)

Fair

45.4% (74)

Poor

6.7% (11)

SD

6.7% (11)

All Bridges (163)

Sort:

I-25 NBL

Over: South Chugwater Hwy

Cheyenne - Chugwater, Platte, WY

Built 1969 ADT: 86

I-25 SBL

Over: South Chugwater Hwy

Cheyenne - Chugwater, Platte, WY

Built 1969 ADT: 86

I-25 NBL

Over: WYO 321

Chugwater Marginal, Platte, WY

Built 1968 ADT: 945

I-25 SBL

Over: WYO 211

Chugwater Marginal, Platte, WY

Built 1968 ADT: 1,798

I-25 NBL

Over: WYO 321

Chugwater - Wheatland, Platte, WY

Built 1969 ADT: 289

I-25 SBL

Over: Pl CR 98 (TY Road)

Chugwater - Wheatland, Platte, WY

Built 1969 ADT: 131

E Hunton Creek Rd

Over: I-25

Chugwater - Wheatland, Platte, WY

Built 1958 ADT: 3,173

I-25 NBL

Over: N Antelope Creek Rd

Chugwater - Wheatland, Platte, WY

Built 1958 ADT: 131

I-25 SBL

Over: N Antelope Creek Rd

Chugwater - Wheatland, Platte, WY

Built 1958 ADT: 131

I-25 NBL

Over: Bordeaux Road

Chugwater - Wheatland, Platte, WY

Built 1970 ADT: 25

I-25 SBL

Over: Bordeaux Road

Chugwater - Wheatland, Platte, WY

Built 1970 ADT: 206

I-25 NBL

Over: I-25 East Service Road

Chugwater - Wheatland, Platte, WY

Built 1970 ADT: 328

I-25 SBL

Over: WYO 34

Chugwater - Wheatland, Platte, WY

Built 1970 ADT: 914

Pl Cnty Rd 90

Over: I-25

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 3,390

I-25 NBL

Over: Laramie River Road

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 10

I-25 SBL

Over: Laramie River Road

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 131

I-25 NBL

Over: East Johnson Road

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 131

I-25 SBL

Over: East Johnson Road

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 131

I-25 NBL

Over: US 26

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 571

I-25 SBL Off Ramp

Over: US 26

Dwyer Jct, Platte, WY

Built 1966 ADT: 511

I-25 NBL

Over: Pl CR 117 (Pepper Road)

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 75

I-25 SBL

Over: Pl CR 114 (Fish Creek)

Wheatland - Glendo, Platte, WY

Built 1966 ADT: 57

I-25 NBL

Over: I-25 Service Road

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 57

I-25 SBL

Over: I-25 Service Road

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 57

I-25 NBL

Over: WYO 319

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 130

I-25 SBL

Over: El Rancho Road

Wheatland - Glendo, Platte, WY

Built 1960 ADT: 206

I-25 NBL

Over: Middle Bear Intg

Wheatland - Glendo, Platte, WY

Built 1961 ADT: 131

I-25 SBL

Over: Middle Bear Intg

Wheatland - Glendo, Platte, WY

Built 1961 ADT: 131

I-25 NBL

Over: Horseshoe Creek Rd

Wheatland - Glendo, Platte, WY

Built 1974 ADT: 129

I-25 SBL

Over: Horseshoe Creek Rd

Wheatland - Glendo, Platte, WY

Built 1974 ADT: 129

I-25 NBL

Over: Glendo Intg

Glendo Marginal, Platte, WY

Built 1974 ADT: 1,496

I-25 SBL

Over: Glendo Intg

Glendo Marginal, Platte, WY

Built 1974 ADT: 1,496

I-25 NBL

Over: WYO 312 (South Street)

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,288

I-25 NBL

Over: Swanson Road

Wheatland Marginal, Platte, WY

Built 1975 ADT: 1,075

I-25 SBL

Over: Swanson Road

Wheatland Marginal, Platte, WY

Built 1975 ADT: 1,106

I-25 SBL

Over: WYO 312 (South Street)

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,288

WYO 310

Over: I-25

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,243

I-25 NBL

Over: Pl CR 147 (Collins Road)

Glendo - Douglas, Platte, WY

Built 1974 ADT: 19

US 87 Bus

Over: I-25

Wheatland Marginal, Platte, WY

Built 1975 ADT: 3,320

WYO 314

Over: I-25

Chugwater - Wheatland, Platte, WY

Built 1958 ADT: 3,173

I-25 SBL

Over: Pl CR 147 (Collins Road)

Glendo - Douglas, Platte, WY

Built 1974 ADT: 19

I-25 NBL

Over: Pl CR 211 (Elkhorn Crk)

Glendo - Douglas, Platte, WY

Built 1973 ADT: 15

I-25 SBL

Over: Pl CR 211 (Elkhorn Crk)

Glendo - Douglas, Platte, WY

Built 1973 ADT: 15

Pl Cnty Rd 245-1

Over: I-25

Cheyenne - Chugwater, Platte, WY

Built 1977 ADT: 3,238

BNSF Railway

Over: Pleasant Valley Road

T27N R066W S35, Platte, WY

Built 1960 ADT: 1,266

BNSF Railway

Over: Pleasant Valley Road

T27N R066 Sec035, Platte, WY

Built 1960 ADT: 1,266

BNSF Railway

Over: Pleasant Valley Road

Guernsey, Platte, WY

Built 1960 ADT: 1,266

Lake Side Drive

Over: Guernsey Dam Spillway

1.8 miles NW of Guernsey, Platte, WY

Built 1927 Load: 5.4 t ADT: 100

Pl Cnty Rd 232

Over: Chugwater Creek

15 Mi. S.E. Of Wheatland, Platte, WY

Built 1950 Load: 7.8 t ADT: 25

Pl Cnty Rd 87

Over: Canal No 1

7 Miles S. Of Wheatland, Platte, WY

Built 1931 Load: 16.0 t ADT: 131

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 6, 2026