Lemhi County, ID

73 public highway bridges

Lemhi County Bridge Snapshot

Lemhi County, Idaho contains 73 public highway bridges in the FHWA National Bridge Inventory. Roughly 54.8% are rated “Good,” 37% “Fair,” 8.2% “Poor,” and 8.2% 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.

73
Total Bridges
54.8%
Good
8.2%
Poor
8.2%
Structurally Deficient

Condition Distribution

Good
54.8% (40)
Fair
37% (27)
Poor
8.2% (6)
SD
8.2% (6)

All Bridges (73)

CARMEN CREEK ROAD

Fair

Over: CARMEN CREEK

NO DATA ENTERED, Lemhi, ID

Built 1961 Load: 10.0 t ADT: 10

S DAISY STREET

Fair

Over: SPRING CREEK

IN SALMON;DAISY ST, Lemhi, ID

Built 1975 Load: 13.6 t ADT: 250

FDR 60103

Fair

Over: PANTHER CREEK

6 MILES SW OF COBALT, Lemhi, ID

Built 1960 Load: 19.8 t ADT: 50

NO DATA ENTERED

Fair

Over: NORTH FORK SALMON

NO DATA ENTERED, Lemhi, ID

Built 1956 Load: 20.4 t ADT: 50

NO DATA ENTERED

Fair

Over: OWL CREEK

NO DATA ENTERED, Lemhi, ID

Built 1959 Load: 20.4 t ADT: 200

ROAD

Fair

Over: BEAR VALLEY CREEK

NO DATA ENTERED, Lemhi, ID

Built 1960 Load: 20.7 t ADT: 50

NO DATA ENTERED

Fair

Over: PANTHER CREEK

5.2 MILES SW OF COBALT, Lemhi, ID

Built 1953 Load: 22.4 t ADT: 50

INDIAN CREEK RD

Fair

Over: INDIAN CREEK(#4)

22.0 NW SALMON, Lemhi, ID

Built 1970 Load: 22.7 t ADT: 15

FSR 60055

Fair

Over: PANTHER CREEK

2.4 MILES NNE OF COBALT, Lemhi, ID

Built 1963 Load: 22.7 t ADT: 50

FDR 61000

Fair

Over: PANTHER CREEK

6.5 MILES SW OF COBALT, Lemhi, ID

Built 1983 Load: 23.3 t ADT: 50

NO DATA ENTERED

Fair

Over: MOOSE CREEK

NO DATA ENTERED, Lemhi, ID

Built 1979 Load: 24.6 t ADT: 50

FDR 60099

Fair

Over: COPPER CREEK

COBALT WORK CENTER, Lemhi, ID

Built 1971 Load: 24.9 t ADT: 5

NO DATA ENTERED

Fair

Over: INDIAN CREEK

NO DATA ENTERED, Lemhi, ID

Built 1963 Load: 24.9 t ADT: 200

YELLOWJACKET ROAD

Fair

Over: YELLOWJACKET CREEK

NO DATA ENTERED, Lemhi, ID

Built 1956 Load: 25.3 t ADT: 50

NO DATA ENTERED

Fair

Over: NORTH FORK SALMON

NO DATA ENTERED, Lemhi, ID

Built 1963 Load: 25.9 t ADT: 5

NO DATA ENTERED

Fair

Over: YELLOWJACKET CREEK

NO DATA ENTERED, Lemhi, ID

Built 1963 Load: 26.2 t ADT: 50

NO DATA ENTERED

Fair

Over: NORTH FORK SALMON

NO DATA ENTERED, Lemhi, ID

Built 1958 Load: 26.2 t ADT: 50

NO DATA ENTERED

Fair

Over: NORTH FORK SALMON

NO DATA ENTERED, Lemhi, ID

Built 1959 Load: 26.2 t ADT: 50

BEAR VALLEY CR. RD

Fair

Over: BEAR VALLEY CREEK

BEAR VALLEY CREEK, Lemhi, ID

Built 1966 Load: 26.6 t ADT: 10

NO DATA ENTERED

Fair

Over: YELLOWJACKET CREEK

NO DATA ENTERED, Lemhi, ID

Built 1971 Load: 27.5 t ADT: 50

NO DATA ENTERED

Fair

Over: DEEP CREEK

NO DATA ENTERED, Lemhi, ID

Built 1962 Load: 27.9 t ADT: 50

INDIAN CREEK RD

Fair

Over: INDIAN CREEK(#3)

22.0 NW SALMON, Lemhi, ID

Built 1970 Load: 30.8 t ADT: 15

US 93

Fair

Over: N.FK.SALMON RIVER

IN NORTH FORK, Lemhi, ID

Built 1955 Load: 33.6 t ADT: 1,100

US 93

Fair

Over: N.FK.SALMON RIVER

1.0 N. NORTH FORK, Lemhi, ID

Built 1955 Load: 33.6 t ADT: 730

NO DATA ENTERED

Fair

Over: BLACKBIRD CREEK

NO DATA ENTERED, Lemhi, ID

Built 1999 Load: 35.3 t ADT: 50

IRON CREEK ROAD

Fair

Over: SALMON RIVER;IRON CK BR

20 S. SALMON, Lemhi, ID

Built 1965 Load: 35.4 t ADT: 50

RINGBONE MINE RD.

Fair

Over: NAPIAS CREEK

NO DATA ENTERED, Lemhi, ID

Built 1994 Load: 49.6 t ADT: 50

DEEP CR. ROAD

Good

Over: DEEP CREEK

14 miles SW of Salmon, ID, Lemhi, ID

Built 2008 ADT: 100

SHEEP CR. ROAD

Good

Over: SHEEP CREEK

NO DATA ENTERED, Lemhi, ID

Built 1985 ADT: 50

NO DATA ENTERED

Good

Over: PANTHER CREEK

NO DATA ENTERED, Lemhi, ID

Built 1981 Load: 9.4 t ADT: 50

MAIERS LANE

Good

Over: LEMHI RIVER

3.7 S. 2.9 E. LEMHI, Lemhi, ID

Built 1977 Load: 18.1 t ADT: 120

3043: WARM SPRING

Good

Over: Big Timber Creek

5 mi W of ID28, Lemhi, ID

Built 1979 Load: 25.3 t ADT: 25

NO DATA ENTERED

Good

Over: SILVER CREEK

26 MILES NNW OF CHALLIS, Lemhi, ID

Built 1994 Load: 27.9 t ADT: 5

HAYDEN CR. ROAD

Good

Over: HAYDEN CREEK

NO DATA ENTERED, Lemhi, ID

Built 1974 Load: 27.9 t ADT: 10

IRON CREEK ROAD

Good

Over: IRON CREEK

20 S. 4 W. SALMON, Lemhi, ID

Built 2010 Load: 28.5 t ADT: 50

STORMY PEAK ROAD

Good

Over: EAST BOULDER CREEK

NO DATA ENTERED, Lemhi, ID

Built 1983 Load: 28.8 t ADT: 50

LEVEL C ROAD

Good

Over: E. FORK HAYDEN CREEK

NO DATA ENTERED, Lemhi, ID

Built 1974 Load: 29.2 t ADT: 10

FDR 60055

Good

Over: NAPIAS CREEK

3 MILES N. OF COBALT ID, Lemhi, ID

Built 1974 Load: 30.8 t ADT: 50

NO DATA ENTERED

Good

Over: BLACKBIRD CREEK

NO DATA ENTERED, Lemhi, ID

Built 1973 Load: 32.7 t ADT: 50

HOOPER LANE

Good

Over: BIG SPRINGS CONN. DITCH

2.9 S 0.8 E MAY, Lemhi, ID

Built 2011 Load: 33.0 t ADT: 70

WILLIAMS CREEK RD

Good

Over: SALMON RIVER; SHOUP BR

5.4 S. SALMON, Lemhi, ID

Built 2018 Load: 33.7 t ADT: 1,100

BACK ROAD

Good

Over: WIMPEY CREEK

10.4 SE SALMON, Lemhi, ID

Built 2013 Load: 34.0 t ADT: 50

ROAD

Good

Over: TWIN CREEK

WEST OF TWIN CR. C.G., Lemhi, ID

Built 2007 Load: 35.0 t ADT: 10

60036

Good

Over: INDIAN CREEK

NO DATA ENTERED, Lemhi, ID

Built 2008 Load: 35.0 t ADT: 5

HOOPER LANE

Good

Over: LITTLE SPRINGS

3.0 S 0.8 E MAY, Lemhi, ID

Built 2011 Load: 35.3 t ADT: 70

AGENCY CREEK ROAD

Good

Over: AGENCY CREEK (BRIDGE 1)

0.5 E 0.5 S TENDOY, Lemhi, ID

Built 2016 Load: 35.3 t ADT: 30

FUREY LANE

Good

Over: PAHSIMEROI RIVER

5.0 W PATTERSON, Lemhi, ID

Built 2015 Load: 35.6 t ADT: 90

OLD HWY 28;BACK RD

Good

Over: AGENCY CREEK

0.4 S. 0.2 E. TENDOY, Lemhi, ID

Built 2012 Load: 36.3 t ADT: 50

4TH OF JULY CR RD

Good

Over: FOURTH OF JULY CREEK

2.0 S 4.0 E NORTH FORK, Lemhi, ID

Built 2013 Load: 36.3 t ADT: 70

18 MILE ROAD

Good

Over: EIGHTEEN MILE CREEK

5.6 S 4.3 E LEADORE, Lemhi, ID

Built 2020 Load: 37.9 t ADT: 20

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