Sweetwater County, WY

196 public highway bridges

Sweetwater County Bridge Snapshot

Sweetwater County, Wyoming contains 196 public highway bridges in the FHWA National Bridge Inventory. Roughly 19.4% are rated “Good,” 33.2% “Fair,” 5.1% “Poor,” and 5.1% 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.

196

Total Bridges

19.4%

Good

5.1%

Poor

5.1%

Structurally Deficient

Condition Distribution

Good

19.4% (38)

Fair

33.2% (65)

Poor

5.1% (10)

SD

5.1% (10)

All Bridges (196)

Sort:

I-80 EBL

Over: WYO 374

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 86

I-80 WBL

Over: WYO 374

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 86

I-80 EBL

Over: WYO 374

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 480

I-80 WBL

Over: WYO 374

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 558

I-80 EBL

Over: Tenneco Road

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 715

I-80 WBL

Over: Tenneco Road

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 715

I-80 EBL

Over: Harborlite Entr Rd

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 109

I-80 WBL

Over: Harborlite Entr Rd

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 109

I-80 EBL

Over: Sw CR 59 (Gaensslen Rd)

Evanston - Green River, Sweetwater, WY

Built 1966 ADT: 449

I-80 WBL

Over: Sw CR 59 (Gaensslen Rd)

Evanston - Green River, Sweetwater, WY

Built 1966 ADT: 76

I-80 EBL

Over: Sw CR 5 (Blue Rim Rd)

Evanston - Green River, Sweetwater, WY

Built 1966 ADT: 283

I-80 WBL

Over: Sw CR 5 (Blue Rim Rd)

Evanston - Green River, Sweetwater, WY

Built 1966 ADT: 283

I-80 EBL

Over: Sw CR 53 (White Mtn Rd)

Green River Marginal, Sweetwater, WY

Built 1966 ADT: 992

I-80 WBL

Over: Sw CR 53 (White Mtn Rd)

Green River Marginal, Sweetwater, WY

Built 1966 ADT: 992

I-80 EBL

Over: Riverview Cemetery Road

Green River Marginal, Sweetwater, WY

Built 1966 ADT: 119

I-80 WBL

Over: Riverview Cemetery Road

Green River Marginal, Sweetwater, WY

Built 1966 ADT: 119

I-80 EBL

Over: I-80 Service Road

Green River-Rock Springs, Sweetwater, WY

Built 1969 ADT: 108

I-80 WBL

Over: I-80 Service Road

Green River-Rock Springs, Sweetwater, WY

Built 1969 ADT: 108

I-80 EBL

Over: WYO 377

Rock Springs - Rawlins, Sweetwater, WY

Built 1964 ADT: 182

I-80 WBL

Over: WYO 377

Rock Springs - Rawlins, Sweetwater, WY

Built 1964 ADT: 133

UPRR Spur

Over: I-80

Rock Springs - Creston Jt, Sweetwater, WY

Built 1971 ADT: 6,627

I-80 EBL

Over: I-80 Service Road

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 16

I-80 WBL

Over: I-80 Service Road

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 16

I-80 EBL

Over: Red Hill Road

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 113

I-80 WBL

Over: Red Hill Road

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 113

I-80 EBL

Over: Sw CR 19 (Bitter Creek)

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 63

I-80 WBL

Over: Sw CR 19 (Bitter Creek)

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 18

I-80 EBL

Over: Patrick Draw Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 28

I-80 WBL

Over: Patrick Draw Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 28

I-80 EBL

Over: Madison Drive

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 113

I-80 WBL

Over: Madison Drive

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 113

I-80 EBL

Over: Sw CR 55 (Table Rock Rd)

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 50

I-80 WBL

Over: Sw CR 21 (Bar X Road)

Rock Springs - Rawlins, Sweetwater, WY

Built 1960 ADT: 109

I-80 EBL

Over: Sw CR 67 (Tipton North)

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 ADT: 109

I-80 WBL

Over: Sw CR 67 (Tipton North)

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 ADT: 109

I-80 EBL

Over: Red Desert Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 ADT: 113

I-80 WBL

Over: Red Desert Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1958 ADT: 113

I-80 EBL

Over: Continental Divide Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1961 ADT: 113

I-80 WBL

Over: Continental Divide Intg

Rock Springs - Rawlins, Sweetwater, WY

Built 1961 ADT: 113

I-80 EBL

Over: WYO 789

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 1,193

I-80 WBL

Over: WYO 789

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 661

I-80 EBL

Over: I-80 Service Road

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 13

I-80 WBL

Over: I-80 Service Road

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 6

I-80 EBL

Over: Sw CR 47 (Riner Road)

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 6

I-80 WBL

Over: Sw CR 47 (Riner Road)

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 ADT: 6

I-80 EBL Off Ramp

Over: I-80

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 6,720

WYO 374

Over: I-80

Evanston - Green River, Sweetwater, WY

Built 1967 ADT: 8,494

WYO 530 SBL

Over: UPRR / I-80 Bus

Green River, Sweetwater, WY

Built 1978 ADT: 8,087

WYO 376

Over: WYO 430

Rock Springs Circumferent, Sweetwater, WY

Built 1980 ADT: 78

Union Pacific RR

Over: Broadway Street

M Street Rock Springs, Sweetwater, WY

Built 1945 ADT: 3,340

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

Related

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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