Shoshone County, ID

139 public highway bridges

Shoshone County Bridge Snapshot

Shoshone County, Idaho contains 139 public highway bridges in the FHWA National Bridge Inventory. Roughly 27.3% are rated “Good,” 58.3% “Fair,” 6.5% “Poor,” and 6.5% 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 ID 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.

139

Total Bridges

27.3%

Good

6.5%

Poor

6.5%

Structurally Deficient

Condition Distribution

Good

27.3% (38)

Fair

58.3% (81)

Poor

6.5% (9)

All Bridges (139)

Sort:

I 90 WBL

Unknown

Over: PINEHURST ROAD GS

4.7 W. KELLOGG, Shoshone, ID

Built 2015 ADT: 1,600

I 90 EBL

Unknown

Over: STC 5766;JOHNSON ST.GS

IN OSBURN;JOHNSON STREET, Shoshone, ID

Built 1969 ADT: 1,700

I 90 WBL

Unknown

Over: STC 5766;JOHNSON ST.GS

IN OSBURN;JOHNSON STREET, Shoshone, ID

Built 1969 ADT: 1,700

I 90 EBL

Unknown

Over: I 90B;THIRD ST.IC

IN OSBURN;THIRD ST.IC, Shoshone, ID

Built 1969 ADT: 1,900

I 90 WBL

Unknown

Over: I 90B;THIRD ST.IC

IN OSBURN;THIRD ST.IC, Shoshone, ID

Built 1969 ADT: 1,900

I 90

Unknown

Over: STC 5766;SILVERTON IC

2.2 W. WALLACE, Shoshone, ID

Built 1978 ADT: 2,000

I 90 EB & WB

Unknown

Over: S.FK.CD'A R;FR.RD.

1.9 W. WALLACE, Shoshone, ID

Built 1978 ADT: 30

I 90 EBL & WBL

Unknown

Over: CROSSROAD BD;W.WALLACE I

IN WALLACE, Shoshone, ID

Built 1987 ADT: 1,100

I 90 EBL & WBL

Unknown

Over: COPPER STREET GS

IN MULLAN;COPPER STREET, Shoshone, ID

Built 1973 ADT: 30

OLD RIVER ROAD

Unknown

Over: ST JOE RIVER;AVERY BR

IN AVERY, Shoshone, ID

Built 1935 ADT: 360

SEVENTH STREET

Unknown

Over: RESIDENCE STREET;VIADUCT

IN WALLACE, Shoshone, ID

Publisher	Kiznis Studio
Sources	FHWA National Bridge Inventory, public U.S. government datasets

Shoshone County, ID

Shoshone County Bridge Snapshot

Condition Distribution

All Bridges (139)

I 90 WBL

I 90 EBL

I 90 WBL

I 90 EBL

I 90 WBL

I 90

I 90 EB & WB

I 90 EBL & WBL

I 90 EBL & WBL

OLD RIVER ROAD

SEVENTH STREET

FS ROUTE NO. 805

FS ROUTE NO. 805

FDR 715

FS ROUTE NO. 208

NO DATA ENTERED

FS ROUTE 3099

S5765;SILVR VALLEY

FS ROUTE 326

FS ROUTE NO. 301

FS ROUTE 303

FS ROUTE 225

TERROR GULCH

FS ROUTE NO. 509

FS ROUTE NO. 271

FS ROUTE NO. 320

FS ROUTE NO. 300A

FS ROUTE NO. 257

FS ROUTE NO. 208

SIBERTS OLD RIVER

S5752;THOMPSON PAS

FS ROUTE 509

FS ROUTE NO. 1997

FS ROUTE 2354

FS ROUTE NO. 412

FS ROUTE NO. 208

FS ROUTE NO. 715

FS ROUTE NO. 412

FS ROUTE 1205

ROSS GULCH

CDA RIVER ROAD

CDA RIVER ROAD

FS ROUTE NO. 804

FS ROUTE NO. 321

FS ROUTE NO. 300A

FS ROUTE #442

I 90RAMP WB ON

STC5758;BEAVER CRK

I 90RAMP EB ON

FIRST ST

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