Idaho County, ID

130 public highway bridges

Idaho County Bridge Snapshot

Idaho County, Idaho contains 130 public highway bridges in the FHWA National Bridge Inventory. Roughly 37.7% are rated “Good,” 54.6% “Fair,” 7.7% “Poor,” and 7.7% 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 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.

130
Total Bridges
37.7%
Good
7.7%
Poor
7.7%
Structurally Deficient

Condition Distribution

Good
37.7% (49)
Fair
54.6% (71)
Poor
7.7% (10)
SD
7.7% (10)

All Bridges (130)

LAKE CK ROAD 50104

Fair

Over: LAKE CREEK

NO DATA ENTERED, Idaho, ID

Built 1970 ADT: 50

OLD HIGHWAY 95

Fair

Over: SLATE CREEK

0.2 N. SLATE CREEK R.STA, Idaho, ID

Built 1920 Load: 10.9 t ADT: 50

FOREST ROAD 443

Fair

Over: SELWAY RIVER

SELWAY FALLS, Idaho, ID

Built 1934 Load: 12.6 t ADT: 50

COUNTY ROAD

Fair

Over: N.FK.SKOOKUMCHUCK CREEK

3.0 S. 4.0 E. WHITEBIRD, Idaho, ID

Built 1965 Load: 12.7 t ADT: 50

FOREST ROAD 1614

Fair

Over: SALMON RIVER

6.4 MI. FROM RIGGINS, ID, Idaho, ID

Built 1949 Load: 13.9 t ADT: 140

MCDONALD ROAD

Fair

Over: SHEBANG CREEK

6.3 N. 5.0 W. GRANGEVILLE, Idaho, ID

Built 1970 Load: 14.5 t ADT: 70

FOREST ROAD 1875

Fair

Over: S.FK.CLWTR RIVER

20 MI. FROM ELK CITY, ID, Idaho, ID

Built 1973 Load: 14.6 t ADT: 50

FOREST ROAD 470

Fair

Over: SELWAY R SWIFTWATER

3 MI. FROM LOWELL, ID, Idaho, ID

Built 1936 Load: 14.9 t ADT: 50

FOREST ROAD 233

Fair

Over: E. FK. CROOKED RIVER

NO DATA ENTERED, Idaho, ID

Built 2004 Load: 15.6 t ADT: 50

STC4715;CLEARCREEK

Fair

Over: CLEAR CREEK

6.4 S. 5.2 E. KOOSKIA, Idaho, ID

Built 1965 Load: 16.3 t ADT: 320

FOREST ROAD 468

Fair

Over: BARGAMIN CR

NO DATA ENTERED, Idaho, ID

Built 1954 Load: 16.5 t ADT: 40

FOREST ROAD 421

Fair

Over: MALLARD CREEK

NO DATA ENTERED, Idaho, ID

Built 1992 Load: 17.5 t ADT: 50

ROCK CREEK ROAD

Fair

Over: RED ROCK CREEK

9.5 S. 6.4 W. KAMIAH, Idaho, ID

Built 1970 Load: 18.1 t ADT: 200

FOREST ROAD 309

Fair

Over: MILL CREEK

2.9 MI. FROM STATE HWY 14, Idaho, ID

Built 1966 Load: 18.5 t ADT: 30

FOREST ROAD 1150

Fair

Over: RED RIVER

NO DATA ENTERED, Idaho, ID

Built 1959 Load: 18.5 t ADT: 10

NO DATA ENTERED

Fair

Over: HAZARD CREEK

NO DATA ENTERED, Idaho, ID

Built 1963 Load: 19.4 t ADT: 50

FDR 103

Fair

Over: LOLO CREEK

1 MI WEST OF MUSSELSHELL, Idaho, ID

Built 1962 Load: 21.1 t ADT: 40

FOREST ROAD 648

Fair

Over: MEADOW CREEK

CAMP 58, Idaho, ID

Built 1991 Load: 21.1 t ADT: 50

FOREST ROAD 290

Fair

Over: MEADOW CREEK

INDIAN HILL, Idaho, ID

Built 1934 Load: 21.4 t ADT: 50

FOREST ROAD 1858

Fair

Over: NEWSOME CREEK

NEWSOME DRAINAGE, Idaho, ID

Built 1962 Load: 22.4 t ADT: 50

FOREST ROAD 1858

Fair

Over: NEWSOME CREEK

NEWSOME DRAINAGE, Idaho, ID

Built 1961 Load: 22.4 t ADT: 50

NO DATA ENTERED

Fair

Over: HAZARD CREEK

NO DATA ENTERED, Idaho, ID

Built 1951 Load: 22.4 t ADT: 50

ADMIN. ROAD

Fair

Over: RED RIVER

RED RIVER R.S. COMPOUND, Idaho, ID

Built 1965 Load: 23.3 t ADT: 50

N ELK LAKE RD

Fair

Over: ELK CREEK

13.9 S. 0.3 E. RIGGINS, Idaho, ID

Built 1965 Load: 23.6 t ADT: 50

FOREST ROAD 1800

Fair

Over: RED RIVER

NO DATA ENTERED, Idaho, ID

Built 1960 Load: 24.3 t ADT: 50

FOREST ROAD 1614

Fair

Over: CAREY CREEK

23.2 MI. FROM RIGGINS, ID, Idaho, ID

Built 1991 Load: 25.6 t ADT: 50

FOREST ROAD 309

Fair

Over: MILL CREEK

2.7 MI. FROM STATE HWY 14, Idaho, ID

Built 1966 Load: 25.6 t ADT: 30

FOREST ROAD 309

Fair

Over: SO. FK. CLEARWATER RIVER

19 MI. FROM GRANGEVILLE,, Idaho, ID

Built 1962 Load: 25.6 t ADT: 40

FOREST ROAD 222C

Fair

Over: FOURTH OF JULY CREEK

NO DATA ENTERED, Idaho, ID

Built 2004 Load: 25.9 t ADT: 50

NO DATA ENTERED

Fair

Over: SWAMP CREEK

ELK SUMMIT ROAD 111, Idaho, ID

Built 1950 Load: 26.6 t ADT: 30

FOREST ROAD 309

Fair

Over: MILL CREEK

2.1 MI. FROM STATE HWY 14, Idaho, ID

Built 1966 Load: 26.6 t ADT: 30

FOREST ROAD 309

Fair

Over: MILL CREEK

2.8 MI. FROM STATE HWY 14, Idaho, ID

Built 1966 Load: 26.6 t ADT: 30

FDR 373

Fair

Over: BRUSHY FORK

22 MI EAST OF POWELL R S, Idaho, ID

Built 1956 Load: 26.9 t ADT: 60

FDR 111

Fair

Over: WHITE SANDS CREEK

WHITE SANDS-RD 111, Idaho, ID

Built 1970 Load: 26.9 t ADT: 50

FOREST ROAD 309

Fair

Over: MILL CREEK

1 MI. FROM STATE HWY 14, Idaho, ID

Built 1966 Load: 27.2 t ADT: 30

NO DATA ENTERED

Fair

Over: DEEP CR

NO DATA ENTERED, Idaho, ID

Built 1964 Load: 27.9 t ADT: 10

NO DATA ENTERED

Fair

Over: WALTON CREEK

ELK SUMMIT ROAD 362, Idaho, ID

Built 1953 Load: 27.9 t ADT: 20

NO DATA ENTERED

Fair

Over: FISHING CREEK

NO DATA ENTERED, Idaho, ID

Built 1954 Load: 28.8 t ADT: 30

FDR 5119

Fair

Over: ELDORADO CREEK

SNOW CR BRIDGE, Idaho, ID

Built 1963 Load: 29.2 t ADT: 10

FDR 100

Fair

Over: ELDORADO CREEK

ELDORADO CREEK, Idaho, ID

Built 1987 Load: 29.2 t ADT: 150

GUARD STATION RD.

Fair

Over: SLATE CREEK

SLATE CREEK, Idaho, ID

Built 1965 Load: 29.2 t ADT: 50

FOREST ROAD 421

Fair

Over: MALLARD CREEK

NO DATA ENTERED, Idaho, ID

Built 1992 Load: 29.2 t ADT: 50

FOREST ROAD 223

Fair

Over: GEDNEY CR

18 MI. FROM LOWELL, ID, Idaho, ID

Built 1934 Load: 29.2 t ADT: 50

FDR 1649

Fair

Over: LOCHSA RIVER

WLD GATEWAY CAMPGROUND, Idaho, ID

Built 1967 Load: 29.5 t ADT: 30

FOREST ROAD 1190

Fair

Over: TRAPPER CR

NO DATA ENTERED, Idaho, ID

Built 1958 Load: 29.5 t ADT: 40

FDR 373

Fair

Over: BRUSHY FORK

33 MILES EA OF POWELL R S, Idaho, ID

Built 1957 Load: 29.8 t ADT: 40

FOREST ROAD 651

Fair

Over: O'HARA CREEK

NO DATA ENTERED, Idaho, ID

Built 1958 Load: 29.8 t ADT: 50

FOREST ROAD 440A

Fair

Over: NEWSOME CREEK

NEWSOME CREEK, Idaho, ID

Built 1959 Load: 30.1 t ADT: 40

FDR 566

Fair

Over: FISHING CREEK

16 MILES TO POWELL R S, Idaho, ID

Built 1954 Load: 30.5 t ADT: 30

FOREST ROAD 1194

Fair

Over: SO. FK. RED RIVER

NO DATA ENTERED, Idaho, ID

Built 1969 Load: 31.1 t ADT: 40

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