Owyhee County, ID

20 public highway bridges

Owyhee County Bridge Snapshot

Owyhee County, Idaho contains 20 public highway bridges in the FHWA National Bridge Inventory. Roughly 45% are rated “Good,” 45% “Fair,” 10% “Poor,” and 10% 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.

20
Total Bridges
45%
Good
10%
Poor
10%
Structurally Deficient

Condition Distribution

Good
45% (9)
Fair
45% (9)
Poor
10% (2)
SD
10% (2)

All Bridges (20)

US 95

Fair

Over: JUMP CREEK

5.0 S. HOMEDALE, Owyhee, ID

Built 1982 Load: 23.6 t ADT: 3,200

3708: DEEP CREEK

Fair

Over: North Fork Owyhee River

70.1 mi S of ID78, Owyhee, ID

Built 1968 Load: 24.3 t ADT: 25

SHOOFLY CUTOFF

Fair

Over: LITTLE VALLEY CREEK

5.0 S. 6.1 W. BRUNEAU, Owyhee, ID

Built 1974 Load: 28.1 t ADT: 110

SH 167

Fair

Over: SNAKE RIVER;GRANDVIEW BR

0.8 N. GRANDVIEW, Owyhee, ID

Built 1970 Load: 29.9 t ADT: 1,500

SH 51

Fair

Over: BRUNEAU RIVER SLOUGH

0.5 W. BRUNEAU, Owyhee, ID

Built 1955 Load: 30.8 t ADT: 1,200

SH 78

Fair

Over: BROWN CREEK

5.6 W. HAMMETT, Owyhee, ID

Built 1954 Load: 31.8 t ADT: 460

S3706;PLEASANT VLY

Fair

Over: JORDON CREEK;PLEASANT BR

4.8 E. IDA-ORE BORDER, Owyhee, ID

Built 1930 Load: 31.8 t ADT: 50

SH 167

Fair

Over: GRANDVIEW IRRIG.DIST.CNL

IN GRANDVIEW, Owyhee, ID

Built 1970 Load: 35.4 t ADT: 1,800

SH 78

Fair

Over: REYNOLDS CREEK

16.4 E. MARSING, Owyhee, ID

Built 1954 Load: 99.9 t ADT: 790

STC3702;CLOVER-3CR

Good

Over: E. FORK BRUNEAU RIVER

25.8 W 5.0 S. CASTLEFORD, Owyhee, ID

Built 2000 Load: 28.1 t ADT: 100

3708: DEEP CREEK

Good

Over: Deep Creek

47.1 mi S of ID78, Owyhee, ID

Built 1983 Load: 28.5 t ADT: 25

FLINT CREEK ROAD

Good

Over: N.FK.BOULDER CREEK

29.0 W. OREANA, Owyhee, ID

Built 2023 Load: 32.7 t ADT: 30

3708: DEEP CREEK

Good

Over: Current Creek

50.0 mi S of ID78, Owyhee, ID

Built 2017 Load: 39.5 t ADT: 25

IRR BIA RTE 901

Good

Over: OWYHEE RIVER

9.8 KM NW OWYHEE AGENCY, Owyhee, ID

Built 1987 Load: 39.7 t ADT: 20

IRR BIA RTE 904

Good

Over: OWYHEE RIVER

17.4 KM NW OF OWYHEE, Owyhee, ID

Built 1987 Load: 40.0 t ADT: 20

SH 78

Good

Over: SCORPION CREEK

5.7 N 0.6 W MURPHY, Owyhee, ID

Built 2013 Load: 40.2 t ADT: 1,200

FLINT CREEK ROAD

Good

Over: JORDAN CREEK

38.4 W OREANA, Owyhee, ID

Built 2012 Load: 48.1 t ADT: 30

REYNOLDS CR RD

Good

Over: REYNOLDS CREEK

0.5 S 10.2 W MURPHY, Owyhee, ID

Built 2012 Load: 65.1 t ADT: 200

SAGE ROAD

Poor

Over: SUCCOR CREEK

1.0 S. 3.8 W. HOMEDALE, Owyhee, ID

Built 1930 Load: 10.0 t ADT: 90

SHEEP CAMP RD

Poor

Over: GRANDVIEW IRRIGATION CNL

1.3 E. GRANDVIEW, Owyhee, ID

Built 1991 Load: 18.1 t ADT: 60

Read our methodology — how this data is sourced, computed, and verified.

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial