Nez Perce County, ID

19 public highway bridges

Nez Perce County Bridge Snapshot

Nez Perce County, Idaho contains 19 public highway bridges in the FHWA National Bridge Inventory. Roughly 21.1% are rated “Good,” 73.7% “Fair,” 0% “Poor,” and 0% 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.

19
Total Bridges
21.1%
Good
0%
Poor
0%
Structurally Deficient

Condition Distribution

Good
21.1% (4)
Fair
73.7% (14)
Poor
0% (0)
SD
0% (0)

All Bridges (19)

SMA7344;BRYDEN CYN

Unknown

Over: SNAKE R;HIGH/SOUTHWAY BR

IN LEWISTON;BRYDEN EXT, Nez Perce, ID

Built 1982 ADT: 13,500

SPERRY GRADE RD

Fair

Over: POTLATCH RVR(SPERRY BR)

AT KENDRICK SCL, Nez Perce, ID

Built 1908 Load: 6.4 t ADT: 170

LITTLE CANYON ROAD

Fair

Over: BIG CANYON CREEK

0.4 S. 0.3 E. PECK, Nez Perce, ID

Built 1930 Load: 9.1 t ADT: 190

STC 4751;CTTNWD CR

Fair

Over: COYOTE CREEK

3.1 S. 3.0 E. MYRTLE, Nez Perce, ID

Built 1938 Load: 11.8 t ADT: 40

STC 4747;CNTRL RDG

Fair

Over: BIG CANYON CREEK

0.3 S. PECK, Nez Perce, ID

Built 1948 Load: 13.6 t ADT: 30

MISSION CREEK ROAD

Fair

Over: MISSION CREEK

3.1 S. JACQUES SPUR, Nez Perce, ID

Built 1947 Load: 13.6 t ADT: 170

HELLS GATE RD

Fair

Over: TAMMANY CREEK

IN HELL'S GATE STATE PARK, Nez Perce, ID

Built 1959 Load: 14.5 t ADT: 330

MOSER ROAD

Fair

Over: COW CREEK

1.5 S. 4.4 W. GENESEE, Nez Perce, ID

Built 1970 Load: 17.2 t ADT: 30

ENTRANCE ROAD

Fair

Over: LAPWAI CREEK

1.4 miles southeast of Jc, Nez Perce, ID

Built 1988 Load: 24.5 t ADT: 225

HIGHLINE ARROW RD

Fair

Over: POTLATCH R(ARROW JCT BR)

2.2 N. 2.3 E. SPALDING, Nez Perce, ID

Built 1920 Load: 29.0 t ADT: 90

US 95 NBL

Fair

Over: COW CREEK

15.2 N. LEWISTON, Nez Perce, ID

Built 2007 Load: 34.5 t ADT: 3,000

US 95

Fair

Over: LAPWAI CREEK

2.4 S. CULDESAC, Nez Perce, ID

Built 2012 Load: 34.7 t ADT: 3,500

US 95

Fair

Over: LAPWAI CREEK

1 N. LAPWAI, Nez Perce, ID

Built 1964 Load: 39.9 t ADT: 6,800

US 95

Fair

Over: NPRR;CLEARWATER RIVER

4 N. LAPWAI, Nez Perce, ID

Built 1962 Load: 40.8 t ADT: 6,200

US 95

Fair

Over: LAPWAI CREEK

1.0 S. CULDESAC, Nez Perce, ID

Built 2012 Load: 42.1 t ADT: 3,500

MCGARY GRADE ROAD

Good

Over: POTLACH RIVER

0.8 N. 1.0 E. JULIAETTA, Nez Perce, ID

Built 2016 Load: 35.0 t ADT: 110

US 95

Good

Over: ROCK CREEK

6.3 N. 1.0 E. WINCHESTER, Nez Perce, ID

Built 2022 Load: 35.3 t ADT: 3,800

3501: EAGLE CREEK

Good

Over: Eagle Creek

11 mi S of Zaza Road, Nez Perce, ID

Built 1974 Load: 39.9 t ADT: 25

US 95

Good

Over: MISSION CREEK

3.2 N. CULDESAC, Nez Perce, ID

Built 1997 Load: 46.3 t ADT: 3,500

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