Washington County, ID

25 public highway bridges

Washington County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Washington County, Idaho contains 25 public highway bridges. Roughly 36% are rated “Good,” 64% “Fair,” and 0% “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.

25
Total Bridges
36%
Good
64%
Fair
0%
Poor Condition

Condition Distribution

Good
36% (9)
Fair
64% (16)
Poor
0% (0)

All Bridges (25)

ADAMS CK RD 50025

Fair

Over: MANN CREEK

NO DATA ENTERED, Washington, ID

Built 1953 ADT: 50

STC8217;COVE ROAD

Fair

Over: WEISER R;BACKWATER CH.BR

AT WEISER ECL;MAIN ST., Washington, ID

Built 1960 Load: 20.9 t ADT: 480

US 95

Fair

Over: RUSH CREEK

0.1 N. CAMBRIDGE NECL, Washington, ID

Built 1956 Load: 25.4 t ADT: 3,100

JONES ROAD

Fair

Over: MANN CREEK

5.5 N. 5.1 E. WEISER, Washington, ID

Built 1960 Load: 25.4 t ADT: 20

US 95

Fair

Over: SPRING CREEK

AT CAMBRIDGE SWCL, Washington, ID

Built 1961 Load: 29.0 t ADT: 4,300

WEISER RIVER ROAD

Fair

Over: CRANE CREEK

3.1 N. 9.4 E. WEISER, Washington, ID

Built 1982 Load: 29.9 t ADT: 20

WIGGINS ROAD

Fair

Over: KEITHLY CREEK

2.7 N. MIDVALE, Washington, ID

Built 1984 Load: 31.5 t ADT: 50

N. CRANE ROAD

Fair

Over: CRANE CREEK

6.0 S. 14.7 E. MIDVALE, Washington, ID

Built 1982 Load: 33.3 t ADT: 50

SH 71

Fair

Over: SPRING CREEK

0.8 W. CAMBRIDGE, Washington, ID

Built 1958 Load: 36.3 t ADT: 770

US 95

Fair

Over: SAGE CREEK

1.0 SW. MIDVALE SWCL, Washington, ID

Built 1964 Load: 36.3 t ADT: 4,300

US 95

Fair

Over: DRY CREEK

0.4 S. MIDVALE SWCL, Washington, ID

Built 1964 Load: 36.3 t ADT: 4,300

JACKSON ROAD

Fair

Over: MANN CREEK

7.4 N. 4.8 E. WEISER, Washington, ID

Built 1973 Load: 36.3 t ADT: 90

US 95

Fair

Over: MANNS CREEK

10.0 N. WEISER NCL, Washington, ID

Built 2004 Load: 39.9 t ADT: 4,300

US 95

Fair

Over: WEISER RIVER

0.2 N. CAMBRIDGE SECL, Washington, ID

Built 1954 Load: 40.8 t ADT: 3,100

US 95

Fair

Over: KEITHLY CREEK

1.4 N. MIDVALE, Washington, ID

Built 1991 Load: 45.4 t ADT: 4,300

COW CREEK ROAD

Fair

Over: RUSH CREEK

4.7 N. 0.2 W. CAMBRIDGE, Washington, ID

Built 2004 Load: 56.2 t ADT: 50

MANN CK RD 50009

Good

Over: 4TH OF JULY CREEK

NO DATA ENTERED, Washington, ID

Built 2008 ADT: 50

NO DATA ENTERED

Good

Over: MANN CREEK

NO DATA ENTERED, Washington, ID

Built 1976 Load: 26.6 t ADT: 50

N. CRANE ROAD

Good

Over: GRANGER CREEK

3.5 S. 11.8 E. MIDVALE, Washington, ID

Built 1996 Load: 27.2 t ADT: 60

MANN CK RD 50009

Good

Over: MANN CREEK

NO DATA ENTERED, Washington, ID

Built 1974 Load: 37.9 t ADT: 30

STC8200;JENKINS RD

Good

Over: GALLOWAY CANAL

0.9 N. 1.2 W. WEISER, Washington, ID

Built 1971 Load: 40.5 t ADT: 810

STC 3888;MILL ROAD

Good

Over: WEISER RIVER

0.5N 1.7E CAMBRIDGE, Washington, ID

Built 2002 Load: 41.7 t ADT: 300

US 95

Good

Over: GALLOWAY CANAL

0.4 N. WEISER NCL, Washington, ID

Built 1999 Load: 42.6 t ADT: 5,800

KEITHLY CREEK ROAD

Good

Over: KEITHLY CREEK

2.5 N. 1.1 W. MIDVALE, Washington, ID

Built 1995 Load: 45.4 t ADT: 30

BED ROCK FLAT ROAD

Good

Over: HOG CREEK

0.5S 9.3E MIDVALE, Washington, ID

Built 2002 Load: 99.9 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.