Clark County, ID

18 public highway bridges

Clark County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Clark County, Idaho contains 18 public highway bridges. Roughly 38.9% are rated “Good,” 27.8% “Fair,” and 22.2% “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.

18
Total Bridges
38.9%
Good
27.8%
Fair
22.2%
Poor Condition

Condition Distribution

Good
38.9% (7)
Fair
27.8% (5)
Poor
22.2% (4)

All Bridges (18)

I 15

Unknown

Over: FRONTAGE ROAD

2.0 S. SPENCER, Clark, ID

Built 1965 ADT: 50

SH 22

Unknown

Over: I 15 NB-SB; DUBOIS IC

IN DUBOIS, Clark, ID

Built 2012 ADT: 3,400

ROAD

Fair

Over: KAY CREEK

NO DATA ENTERED, Clark, ID

Built 1961 ADT: 50

GRAVY RIDGE ROAD

Fair

Over: CAMAS CREEK

0.7 N. 11.0 E. DUBOIS, Clark, ID

Built 1956 Load: 6.4 t ADT: 10

OLD HWY 91

Fair

Over: PLEASANT VALLEY CREEK

6.9 N. 1.5 W. SPENCER, Clark, ID

Built 1934 Load: 11.8 t ADT: 50

SKULL CANYON ROAD

Fair

Over: BIRCH CREEK

0.5 N. BLUE DOME, Clark, ID

Built 2001 Load: 19.1 t ADT: 10

SHENTON RD

Fair

Over: MEDICINE LODGE CR

6.6 W 0.5 N. DUBOIS, Clark, ID

Built 2007 Load: 29.9 t ADT: 10

ROAD

Good

Over: EAST CAMAS CREEK

NO DATA ENTERED, Clark, ID

Built 1995 ADT: 50

W. CAMAS CREEK RD

Good

Over: BEAVER CREEK

3.42 N SPENCER, Clark, ID

Built 1970 Load: 26.3 t ADT: 110

ROAD

Good

Over: KAY CREEK

NO DATA ENTERED, Clark, ID

Built 2011 Load: 36.3 t ADT: 24

ROAD

Good

Over: COTTONWOOD CREEK

NO DATA ENTERED, Clark, ID

Built 2011 Load: 36.3 t ADT: 24

SHEEP FARM ROAD

Good

Over: BEAVER CREEK

4.8 N 0.2 W DUBOIS, Clark, ID

Built 2021 Load: 37.3 t ADT: 30

W. CAMAS CREEK RD

Good

Over: W. CAMAS CREEK

7.2 NW. KILGORE, Clark, ID

Built 1970 Load: 41.7 t ADT: 110

ROAD

Good

Over: COTTONWOOD CREEK

NO DATA ENTERED, Clark, ID

Built 2001 Load: 43.7 t ADT: 50

VADNAIS LANE

Poor

Over: CAMAS CREEK

1.9 S. 0.6 E. KILGORE, Clark, ID

Built 1981 Load: 2.7 t ADT: 50

DIVERSION ROAD

Poor

Over: CAMAS CREEK

10.7 S. 1.2 W. KILGORE, Clark, ID

Built 1953 Load: 14.5 t ADT: 50

STC 6760;RED ROAD

Poor

Over: CAMAS CREEK

8.1 S. 0.4 W. KILGORE, Clark, ID

Built 1953 Load: 15.4 t ADT: 360

OLD HWY 91

Poor

Over: UPRR;N.SPENCER RR OP

13.1 N. 5.2 W. SPENCER, Clark, ID

Built 1936 Load: 24.5 t ADT: 50

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.