Sweetwater County, WY

196 public highway bridges

Sweetwater County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Sweetwater County, Wyoming contains 196 public highway bridges. Roughly 19.4% are rated “Good,” 33.2% “Fair,” and 5.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

196
Total Bridges
19.4%
Good
33.2%
Fair
5.1%
Poor Condition

Condition Distribution

Good
19.4% (38)
Fair
33.2% (65)
Poor
5.1% (10)

All Bridges (196)

I-80 EBL

Fair

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 27.8 t ADT: 6,627

I-80 WBL

Fair

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 27.8 t ADT: 6,832

Spring Drive

Fair

Over: Killpecker Creek

Rock Springs, Sweetwater, WY

Built 1975 Load: 29.0 t ADT: 1,226

WYO 789

Fair

Over: UPRR

Creston Jct - Colo Line, Sweetwater, WY

Built 1965 Load: 29.4 t ADT: 1,193

WYO 376

Fair

Over: Bitter Creek

Rock Springs Circumferent, Sweetwater, WY

Built 1977 Load: 29.9 t ADT: 14,824

I-80 EBL

Fair

Over: Machinery Pass

Evanston - Green River, Sweetwater, WY

Built 1967 Load: 30.8 t ADT: 6,937

I-80 WBL

Fair

Over: Machinery Pass

Evanston - Green River, Sweetwater, WY

Built 1967 Load: 30.8 t ADT: 6,699

I-80 EBL

Fair

Over: Blacks Fork River

Evanston - Green River, Sweetwater, WY

Built 1967 Load: 30.8 t ADT: 7,490

WYO 28

Fair

Over: Little Sandy River

Farson - Jct Us 287, Sweetwater, WY

Built 1982 Load: 30.8 t ADT: 1,783

WYO 376

Fair

Over: Machinery Pass

Rock Springs Circumferent, Sweetwater, WY

Built 1980 Load: 31.8 t ADT: 1,545

I-80 EBL

Fair

Over: UPRR

Evanston - Green River, Sweetwater, WY

Built 1966 Load: 32.7 t ADT: 7,490

I-80 WBL

Fair

Over: UPRR

Evanston - Green River, Sweetwater, WY

Built 1966 Load: 32.7 t ADT: 7,705

I-80 EBL and WBL

Fair

Over: Alkali Flat

Rock Springs Marginal, Sweetwater, WY

Built 1964 Load: 32.7 t ADT: 10,492

I-80 Service Road

Fair

Over: Alkali Flat

Rock Springs, Sunset Dr, Sweetwater, WY

Built 1953 Load: 32.7 t ADT: 1,834

I-80 EBL

Fair

Over: Piker Springs Creek

Rock Springs - Rawlins, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6,603

I-80 WBL

Fair

Over: Piker Springs Creek

Rock Springs - Rawlins, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6,639

I-80 EBL

Fair

Over: Filmore Creek

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 32.7 t ADT: 6,618

WYO 374

Fair

Over: Unnamed Draw

Jct I-80 - Green River, Sweetwater, WY

Built 1946 Load: 32.7 t ADT: 558

WYO 430

Fair

Over: Salt Wells Creek

Rock Springs - Colo Line, Sweetwater, WY

Built 1958 Load: 32.7 t ADT: 316

Spruce Street

Fair

Over: Blacks Fork River

Spruce Street, Sweetwater, WY

Built 1984 Load: 32.7 t ADT: 113

Sw Cnty Rd 85

Fair

Over: Unnamed Draw

6 Mi Se Little America, Sweetwater, WY

Built 1980 Load: 32.7 t ADT: 715

Sw Cnty Rd 85

Fair

Over: Meadow Springs Draw

4 Mi Se Of Little America, Sweetwater, WY

Built 1980 Load: 32.7 t ADT: 715

Sw Cnty Rd 1199

Fair

Over: Greasewood Creek

Riovista S-Div Johnson Wy, Sweetwater, WY

Built 1940 Load: 32.7 t ADT: 258

I-80 Service Road

Fair

Over: Unnamed Draw

Rawlins West, Sweetwater, WY

Built 1963 Load: 32.7 t ADT: 6

I-80 EBL and WBL

Fair

Over: Unnamed Draw

Rock Springs - Rawlins, Sweetwater, WY

Built 1967 Load: 32.7 t ADT: 6,412

WYO 430

Fair

Over: North Alkali Creek

Rock Springs - Colo Line, Sweetwater, WY

Built 1956 Load: 33.6 t ADT: 243

WYO 28

Fair

Over: Eden Canal

Farson - Lander Road, Sweetwater, WY

Built 1985 Load: 35.4 t ADT: 1,270

Stagecoach Blvd

Fair

Over: Killpecker Creek

Rock Springs Streets, Sweetwater, WY

Built 1987 Load: 35.4 t ADT: 4,071

I-80 / US 30 Bus

Fair

Over: Bitter Creek

Rock Springs, Dewar Drive, Sweetwater, WY

Built 1991 Load: 35.4 t ADT: 14,199

US 191

Fair

Over: UPRR

Jct I-80 - Utah Line, Sweetwater, WY

Built 1966 Load: 36.3 t ADT: 3,942

US 191

Fair

Over: Bitter Creek

Jct I-80 - Utah Line, Sweetwater, WY

Built 1966 Load: 38.1 t ADT: 3,942

US 191

Fair

Over: Killpecker Creek

Rock Springs - Farson, Sweetwater, WY

Built 1954 Load: 39.0 t ADT: 2,063

WYO 28

Fair

Over: Big Sandy River

Farson-Fontenelle, Sweetwater, WY

Built 1986 Load: 39.0 t ADT: 548

US 191

Fair

Over: Big Sandy River

Farson - Pinedale, Sweetwater, WY

Built 1958 Load: 39.9 t ADT: 3,171

US 191

Fair

Over: Little Sandy River

Rock Springs - Farson, Sweetwater, WY

Built 1958 Load: 40.8 t ADT: 3,089

WYO 370

Fair

Over: Bitter Creek

Rock Springs Airport Road, Sweetwater, WY

Built 1984 Load: 40.8 t ADT: 1,376

WYO 530 NBL

Fair

Over: Green River

Green River, Sweetwater, WY

Built 1953 Load: 41.7 t ADT: 9,742

US 30

Fair

Over: Blacks Fork River

Kemmerer-Granger Jct., Sweetwater, WY

Built 1998 Load: 41.7 t ADT: 1,496

Sw Cnty Rd 23S

Fair

Over: UPRR

Wamsutter Streets, Sweetwater, WY

Built 2003 Load: 42.6 t ADT: 784

WYO 374

Fair

Over: Blacks Fork River

8 mi E of Little America, Sweetwater, WY

Built 1946 Load: 44.5 t ADT: 1,111

US 30

Fair

Over: UPRR

Kemmerer-Granger Jct., Sweetwater, WY

Built 1998 Load: 44.5 t ADT: 1,496

Sw Cnty Rd 58

Fair

Over: Killpecker Creek

1 Mile North Of Rock Spri, Sweetwater, WY

Built 2009 Load: 47.2 t ADT: 4,674

Interchange Road

Fair

Over: Bitter Creek

2 Miles W Of Rock Springs, Sweetwater, WY

Built 1985 Load: 49.0 t ADT: 97

US 191

Fair

Over: Bitter Creek

Jct 1-80 - Jct U-4304, Sweetwater, WY

Built 1982 Load: 49.9 t ADT: 7,711

Scotts Bottom Road

Fair

Over: Green River

Green River, Sweetwater, WY

Built 2010 Load: 49.9 t ADT: 767

Sw Cnty Rd 8

Fair

Over: Green River

Fontenelle - Co. Line, Sweetwater, WY

Built 1991 Load: 53.1 t ADT: 251

Connecticut Ave

Fair

Over: Dead Horse Canyon Creek

Rock Springs, Sweetwater, WY

Built 1995 Load: 55.9 t ADT: 1,162

3318: SHELL CREEK

Fair

Over: SAND CREEK

15 mi W of Baggs, WY, Sweetwater, WY

Built 2002 Load: 62.9 t ADT: 100

LUCERNE

Good

Over: LINWOOD

.3 MI E JCT WYO-530, Sweetwater, WY

Built 1963 ADT: 20

I-80 EBL

Good

Over: Machinery Pass

Rock Springs - Rawlins, Sweetwater, WY

Built 1962 Load: 24.9 t ADT: 6,427

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.