Lemhi County, ID

73 public highway bridges

Lemhi County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lemhi County, Idaho contains 73 public highway bridges. Roughly 54.8% are rated “Good,” 37% “Fair,” and 8.2% “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.

73
Total Bridges
54.8%
Good
37%
Fair
8.2%
Poor Condition

Condition Distribution

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

All Bridges (73)

SALMON RIVER ROAD

Good

Over: SALMON RIVER

SALMON RIVER NEAR COVE CR, Lemhi, ID

Built 2012 Load: 38.6 t ADT: 350

INDIAN CREEK ROAD

Good

Over: INDIAN CREEK

NO DATA ENTERED, Lemhi, ID

Built 2008 Load: 38.6 t ADT: 5

NO DATA ENTERED

Good

Over: INDIAN CREEK

NO DATA ENTERED, Lemhi, ID

Built 2008 Load: 38.6 t ADT: 5

NO DATA ENTERED

Good

Over: DITCH CREEK

NO DATA ENTERED, Lemhi, ID

Built 2008 Load: 38.6 t ADT: 10

3040: ROCKY CANYON

Good

Over: Hawley Creek

8.4 mi E of ID28 N, Lemhi, ID

Built 2013 Load: 39.5 t ADT: 35

60030

Good

Over: SALMON RIVER

SALMON RIVER NEAR PINE CR, Lemhi, ID

Built 2012 Load: 40.8 t ADT: 350

BACK RD; OLD LEMHI

Good

Over: PRATT CREEK (#1)

9.0 E. 6.5 S. SALMON, Lemhi, ID

Built 2018 Load: 42.1 t ADT: 50

SH 28

Good

Over: LEMHI RIVER

19.6 N. LEADORE., Lemhi, ID

Built 2019 Load: 44.1 t ADT: 820

LEMHI ROAD

Good

Over: LEMHI RIVER (ALLEN BR)

0.3 S. 0.8 E. SALMON, Lemhi, ID

Built 2016 Load: 45.0 t ADT: 860

LEMHI ROAD

Good

Over: CANYON CREEK

0.8 N. 0.2 E. LEADORE, Lemhi, ID

Built 2012 Load: 48.3 t ADT: 100

DIAMOND CREEK ROAD

Good

Over: WALLACE CREEK

1.5 N 0.6 W CARMEN, Lemhi, ID

Built 2011 Load: 49.9 t ADT: 70

OLD HWY 28;BACK RD

Good

Over: KENNY CREEK

4.6 N. 0.5 W. TENDOY, Lemhi, ID

Built 2012 Load: 51.8 t ADT: 50

RATTLESNAKE CRK R

Good

Over: SALMON RIVER

18.8 S. SALMON, Lemhi, ID

Built 2016 Load: 58.6 t ADT: 60

LEESBURG ROAD

Good

Over: ARNETT CREEK

NO DATA ENTERED, Lemhi, ID

Built 1994 Load: 67.1 t ADT: 50

US 93

Good

Over: N. FORK SALMON RIVER

15.1 N. NORTH FORK, Lemhi, ID

Built 1997 Load: 73.5 t ADT: 730

US 93

Good

Over: N. FORK SALMON RIVER

15.1 N. NORTH FORK, Lemhi, ID

Built 1997 Load: 99.9 t ADT: 730

US 93

Good

Over: N. FORK SALMON RIVER

16.0 N. NORTH FORK, Lemhi, ID

Built 1997 Load: 99.9 t ADT: 730

N. ST. CHARLES

Poor

Over: LEMHI RIVER

0.4 N. 0.3 E. SALMON, Lemhi, ID

Built 1948 Load: 16.3 t ADT: 310

NO DATA ENTERED

Poor

Over: PANTHER CREEK

NO DATA ENTERED, Lemhi, ID

Built 1980 Load: 17.2 t ADT: 200

MOCCASIN-NAPIAS RD

Poor

Over: NAPIAS CREEK

NO DATA ENTERED, Lemhi, ID

Built 1953 Load: 24.3 t ADT: 25

NO DATA ENTERED

Poor

Over: YELLOWJACKET CREEK

NO DATA ENTERED, Lemhi, ID

Built 1962 Load: 29.8 t ADT: 50

NO DATA ENTERED

Poor

Over: BOULDER CREEK

NO DATA ENTERED, Lemhi, ID

Built 1966 Load: 35.3 t ADT: 200

SALMON RIVER ROAD

Poor

Over: PINE CREEK

PINE CREEK, Lemhi, ID

Built 2012 Load: 37.3 t ADT: 350

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.