Blaine County, ID

39 public highway bridges

Blaine County Bridge Snapshot

Blaine County, Idaho contains 39 public highway bridges in the FHWA National Bridge Inventory. Roughly 33.3% are rated “Good,” 61.5% “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 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.

39
Total Bridges
33.3%
Good
5.1%
Poor
5.1%
Structurally Deficient

Condition Distribution

Good
33.3% (13)
Fair
61.5% (24)
Poor
5.1% (2)
SD
5.1% (2)

All Bridges (39)

FDR

Fair

Over: WOOD RIVER

12 MILES WEST SNRA HQDS, Blaine, ID

Built 1953 ADT: 50

FDR

Fair

Over: WARM SPRINGS CREEK

11 MILES WEST OF KETCHUM, Blaine, ID

Built 1991 ADT: 50

STC2815;WARM SPRNG

Fair

Over: BIG WOOD RIVER

IN KETCHUM;WARM SPRING RD, Blaine, ID

Built 1972 Load: 7.3 t ADT: 5,900

FDR

Fair

Over: WOOD RIVER

13 MILES FROM SNRA HQTS, Blaine, ID

Built 1962 Load: 15.2 t ADT: 50

STOCKER CREEK ROAD

Fair

Over: SILVER CREEK

0.2 N. 5.0 W. PICABO, Blaine, ID

Built 1977 Load: 16.3 t ADT: 60

FDR

Fair

Over: WARM SPRINGS CREEK

14 MILES WEST KETCHUM, Blaine, ID

Built 1952 Load: 16.8 t ADT: 50

FDR

Fair

Over: WARM SPRINGS CREEK

6 MILES WEST OF KETCHUM, Blaine, ID

Built 1954 Load: 18.1 t ADT: 50

FDR

Fair

Over: WARM SPRINGS CREEK

10 MILES WEST OF KETCHUM, Blaine, ID

Built 1953 Load: 18.8 t ADT: 50

FDR

Fair

Over: SALMON RIVER

1 MILE SOUTH SMILEY CREEK, Blaine, ID

Built 1957 Load: 19.8 t ADT: 50

HULEN MEADOWS ROAD

Fair

Over: BIG WOOD RIVER

2.7 N. 0.7 W. KETCHUM, Blaine, ID

Built 1975 Load: 20.9 t ADT: 100

RIVERVIEW STREET

Fair

Over: BELLEVUE CANAL

IN BELLEVUE, Blaine, ID

Built 1980 Load: 20.9 t ADT: 40

FDR

Fair

Over: NORTH FORK WOOD RIVER

1 MILE NORTH SNRA HQDS., Blaine, ID

Built 1956 Load: 21.4 t ADT: 50

FDR

Fair

Over: WARM SPRINGS CREEK

16 MILES WEST OF KETCHUM, Blaine, ID

Built 1959 Load: 22.0 t ADT: 50

FDR

Fair

Over: NORTH FORK WOOD RIVER

3 MILES NORTH SNRA HQDS, Blaine, ID

Built 1955 Load: 24.0 t ADT: 50

FDR

Fair

Over: ALTURAS LAKE CREEK

2 MILES NORTH ALTURAS L., Blaine, ID

Built 1955 Load: 24.0 t ADT: 50

FDR

Fair

Over: NORTH FORK OF WOOD RIVER

4 MILES NORTH SNRA HQDS, Blaine, ID

Built 1955 Load: 24.6 t ADT: 50

FDR

Fair

Over: SMILEY CREEK

SAWTOOTH VALLEY SMILEY CR, Blaine, ID

Built 1979 Load: 24.9 t ADT: 25

SH 75

Fair

Over: BIG WOOD RIVER

14.6 N. KETCHUM, Blaine, ID

Built 1958 Load: 27.2 t ADT: 1,500

FDR

Fair

Over: WOOD RIVER

NEAR GALENA LODGE, Blaine, ID

Built 1967 Load: 28.8 t ADT: 70

FDR

Fair

Over: ALTURAS LAKE CREEK

ALTURAS LAKE OUTLET, Blaine, ID

Built 1964 Load: 28.8 t ADT: 100

US 20

Fair

Over: GROVE CREEK

12.1 W. CAREY, Blaine, ID

Built 1971 Load: 30.8 t ADT: 1,800

SH 75

Fair

Over: BIG WOOD RIVER

6.7 N. KETCHUM, Blaine, ID

Built 1991 Load: 38.1 t ADT: 2,300

PERO ROAD

Fair

Over: BELLEVUE CANAL

4.6 S. 1.6 E. BELLEVUE, Blaine, ID

Built 1993 Load: 44.5 t ADT: 100

OLD DOLLAR ROAD

Fair

Over: TRAIL CREEK

IN SUN VALLEY, Blaine, ID

Built 2004 Load: 46.3 t ADT: 1,000

FDR

Good

Over: POLE CREEK

2 MILES UP POLE CREEK ROD, Blaine, ID

Built 2013 ADT: 50

FDR

Good

Over: WOOD RIVER

4MILES WEST SNRA HQTS, Blaine, ID

Built 1959 Load: 17.8 t ADT: 50

FDR

Good

Over: EAST FORK WOOD RIVER

8 MILES SE OF KETCHUM, Blaine, ID

Built 1974 Load: 23.7 t ADT: 50

FDR

Good

Over: BAKER CREEK

5 MILES UP BAKER CREEK, Blaine, ID

Built 1964 Load: 25.6 t ADT: 100

FDR

Good

Over: HYNDMAN CREEK

8 MILES EAST OF KETCHUM, Blaine, ID

Built 1985 Load: 30.1 t ADT: 30

US 20

Good

Over: LOVING CREEK

11.6 W. CAREY, Blaine, ID

Built 1971 Load: 31.8 t ADT: 1,800

ROAD

Good

Over: HYNDMAN CREEK

HINDMAN CREEK, Blaine, ID

Built 1994 Load: 32.7 t ADT: 80

US 20

Good

Over: BIG WOOD RIVER

23.9 E. FAIRFIELD, Blaine, ID

Built 2017 Load: 36.6 t ADT: 2,100

MULDOON CANYON RD

Good

Over: MULDOON CREEK

21 NE of Carey, Blaine, ID

Built 2021 Load: 37.9 t ADT: 80

STC2822;GLENDALE R

Good

Over: BIG WOOD RIVER

2.7 S. BELLEVUE, Blaine, ID

Built 1998 Load: 38.1 t ADT: 1,900

ADAMS GULCH ROAD

Good

Over: BIG WOOD RIVER

1.7 N. 0.5 W. KETCHUM, Blaine, ID

Built 2018 Load: 39.2 t ADT: 590

FDR

Good

Over: COPPER CREEK

21 MILES EAST OF GIMLET, Blaine, ID

Built 2002 Load: 43.4 t ADT: 50

PRIEST ROAD

Good

Over: SILVER CREEK;S.E. PICABO

2.3 S. 2.7 E. PICABO, Blaine, ID

Built 1995 Load: 55.3 t ADT: 30

PR

Poor

Over: NORTH FORK WOOD RIVER

2 MILES NORTH SNRA HQDS, Blaine, ID

Built 1950 Load: 29.2 t ADT: 50

LTL WOOD RES. ROAD

Structurally Deficient

Over: MULDOON CREEK

12.8 N. 2.8 W. CAREY, Blaine, ID

Built 1954 Load: 6.4 t ADT: 30

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial