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:

WYO 313

Over: Chugwater Creek

Chugwater, Platte, WY

Built 1954 Load: 19.2 t ADT: 303

WYO 320

Over: Wheatland Creek

Wheatland - Jct Us 26, Platte, WY

Built 1956 Load: 20.9 t ADT: 874

WYO 319

Over: Middle Fork Bear Creek

Jct I-25 - Glendo, Platte, WY

Built 1922 Load: 22.2 t ADT: 179

WYO 312

Over: Rock Creek

Jct WYO 34 - Wheatland, Platte, WY

Built 1931 Load: 22.9 t ADT: 497

WYO 314

Over: Richeau Creek

Jct I-25 - East, Platte, WY

Built 1949 Load: 23.9 t ADT: 122

I-25 SBL

Over: Machinery Pass

Wheatland - Glendo, Platte, WY

Built 1960 Load: 24.9 t ADT: 3,375

WYO 319

Over: North Fork Bear Creek

Jct I-25 - Glendo, Platte, WY

Built 1922 Load: 25.1 t ADT: 179

WYO 320

Over: Wheatland Creek

Wheatland - Jct Us 26, Platte, WY

Built 1956 Load: 25.8 t ADT: 2,218

Pl Cnty Rd 133

Over: Sybille Creek

8 Mi. N.W. Of Wheatland, Platte, WY

Built 1988 Load: 26.3 t ADT: 50

I-25 NBL

Over: Richeau Creek

Chugwater - Wheatland, Platte, WY

Built 1958 Load: 26.5 t ADT: 3,098

I-25 NBL

Over: Fish Creek

Wheatland - Glendo, Platte, WY

Built 1966 Load: 27.2 t ADT: 3,312

I-25 SBL

Over: Fish Creek

Wheatland - Glendo, Platte, WY

Built 1966 Load: 27.2 t ADT: 3,390

I-25 Service Road

Over: Chugwater Creek

Cheyenne - Chugwater, Platte, WY

Built 1955 Load: 27.8 t ADT: 86

Pl Cnty Rd 67

Over: Chugwater Creek

T25N R067W S23, Platte, WY

Built 1979 Load: 27.8 t ADT: 165

I-25 SBL

Over: South Bear Creek

Wheatland - Glendo, Platte, WY

Built 1961 Load: 28.1 t ADT: 3,318

I-25 SBL

Over: Machinery Pass

Glendo - Douglas, Platte, WY

Built 1972 Load: 28.1 t ADT: 3,318

US 87 Bus

Over: Wheatland Canal No 2

Wheatland Streets, Platte, WY

Built 1996 Load: 28.8 t ADT: 3,432

I-25 NBL

Over: Machinery Pass

Wheatland - Glendo, Platte, WY

Built 1974 Load: 29.9 t ADT: 3,471

I-25 SBL

Over: Machinery Pass

Wheatland - Glendo, Platte, WY

Built 1974 Load: 29.9 t ADT: 3,318

I-25 NBL

Over: Horseshoe Creek

Wheatland - Glendo, Platte, WY

Built 1974 Load: 29.9 t ADT: 3,471

I-25 SBL

Over: Horseshoe Creek

Wheatland - Glendo, Platte, WY

Built 1974 Load: 29.9 t ADT: 3,318

8th Street

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 30.7 t ADT: 131

US 26

Over: BNSF Railway

Dwyer Jct - Guernsey, Platte, WY

Built 1966 Load: 30.8 t ADT: 1,840

Pl Cnty Rd 90

Over: Wheatland Creek

4 Mi. N. Of Wheatland, Platte, WY

Built 1975 Load: 30.8 t ADT: 609

WYO 320

Over: Laramie River

Wheatland-Dwyer Jct., Platte, WY

Built 1987 Load: 30.8 t ADT: 874

I-25 SBL

Over: Machinery Pass

Wheatland - Glendo, Platte, WY

Built 1966 Load: 31.8 t ADT: 3,390

I-25 NBL

Over: North Laramie River

Wheatland - Glendo, Platte, WY

Built 1966 Load: 31.8 t ADT: 3,312

Front Street

Over: Canal No 2

Front Street-Wheatland, Platte, WY

Built 1982 Load: 31.8 t ADT: 387

US 26

Over: North Platte River

Dwyer Jct - Guernsey, Platte, WY

Built 1983 Load: 32.0 t ADT: 4,794

15th Street

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 32.0 t ADT: 222

I-25 Service Road

Over: Spring Creek

El Rancho Intg North, Platte, WY

Built 1927 Load: 32.3 t ADT: 57

I-25 NBL

Over: BNSF Railway

Cheyenne - Chugwater, Platte, WY

Built 1969 Load: 32.7 t ADT: 3,170

I-25 SBL

Over: BNSF Railway

Cheyenne - Chugwater, Platte, WY

Built 1969 Load: 32.7 t ADT: 3,238

I-25 NBL and SBL

Over: Rock Creek

Chugwater - Wheatland, Platte, WY

Built 1975 Load: 32.7 t ADT: 3,458

I-25 NBL

Over: Machinery Pass

Cheyenne - Chugwater, Platte, WY

Built 1977 Load: 32.7 t ADT: 3,170

I-25 SBL

Over: Machinery Pass

Cheyenne - Chugwater, Platte, WY

Built 1977 Load: 32.7 t ADT: 3,238

Pl Cnty Rd 104

Over: Stewart Draw

T21N R067W S30, Platte, WY

Built 1965 Load: 32.7 t ADT: 131

Pl Cnty Rd 109S

Over: Laramie River

T26N R065W S32, Platte, WY

Built 1980 Load: 32.7 t ADT: 74

Pl Cnty Rd 41

Over: Cottonwood Creek

15 Mi. South Of Glendo, Platte, WY

Built 1970 Load: 32.7 t ADT: 131

E Oak Street

Over: Wheatland Creek

E Oak Street-Wheatland, Platte, WY

Built 1978 Load: 32.7 t ADT: 131

14th Street

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 32.7 t ADT: 131

12th Street

Over: Canal No 2

Wheatland, Platte, WY

Built 1950 Load: 32.7 t ADT: 131

Pl Cnty Rd 59

Over: Horseshoe Creek

3 Mi. S.W. Of Glendo, Platte, WY

Built 1975 Load: 32.7 t ADT: 129

Pl Cnty Rd 59

Over: Horseshoe Creek

11 Mi. S.W. Of Glendo, Platte, WY

Built 1975 Load: 32.7 t ADT: 129

Pl Cnty Rd 133

Over: Laramie River

8 Mi. N.W. Of Wheatland, Platte, WY

Built 1989 Load: 32.7 t ADT: 50

I-25 NBL

Over: Elkhorn Creek

Glendo - Douglas, Platte, WY

Built 1973 Load: 33.6 t ADT: 3,471

I-25 SBL

Over: Elkhorn Creek

Glendo - Douglas, Platte, WY

Built 1973 Load: 33.6 t ADT: 3,318

WYO 34

Over: Lateral No 1

Bosler Jct-Wheatland, Platte, WY

Built 1983 Load: 33.6 t ADT: 702

I-25 Service Road

Over: Rock Creek

Wheatland South, Platte, WY

Built 1948 Load: 34.5 t ADT: 151

US 26

Over: BNSF Railway

Guernsey - Lingle, Platte, WY

Built 1962 Load: 34.5 t ADT: 2,439

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

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