Gilliam County, OR

35 public highway bridges

Gilliam County Bridge Snapshot

Gilliam County, Oregon contains 35 public highway bridges in the FHWA National Bridge Inventory. Roughly 45.7% are rated “Good,” 42.9% “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 OR 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.

35
Total Bridges
45.7%
Good
0%
Poor
0%
Structurally Deficient

Condition Distribution

Good
45.7% (16)
Fair
42.9% (15)
Poor
0% (0)
SD
0% (0)

All Bridges (35)

I-84 (HWY 002)

Unknown

Over: ARLINGTON VIADUCT

009 MI W ARLINGTON, Gilliam, OR

Built 1964 ADT: 350

PHILLIPI CANYON RD

Unknown

Over: I-84 (HWY 002)

088 MI E SHERMAN GILL CLN, Gilliam, OR

Built 1964 ADT: 12,050

I-84 (HWY 002)

Unknown

Over: BLALOCK CANYON RD

149 MI E SHERMAN GILL CLN, Gilliam, OR

Built 1964 ADT: 11,995

OR 74 (HWY 052)

Unknown

Over: I-84 (HWY 002)

JCT HWY 002 & HWY 074, Gilliam, OR

Built 1964 ADT: 11,515

BARNETT RD

Fair

Over: ROCK CREEK

9.2 MI NW OF HWY 19, Gilliam, OR

Built 1957 Load: 7.5 t ADT: 93

I-84 (HWY 002) WB

Fair

Over: WILLOW CREEK WEST

011 MI E HEPPNER JCT, Gilliam, OR

Built 1954 Load: 14.9 t ADT: 5,757

OR 206 (HWY 300)

Fair

Over: ROCK CREEK

103 MI E CONDON, Gilliam, OR

Built 1934 Load: 20.4 t ADT: 52

TRAIL FORK ROAD

Fair

Over: THIRTYMILE CREEK

2.5 MI E OF HWY 19, Gilliam, OR

Built 1957 Load: 25.4 t ADT: 36

UPPER ROCK CR ROAD

Fair

Over: ROCK CREEK

2.9 MI SE OF HWY 19, Gilliam, OR

Built 1962 Load: 29.0 t ADT: 58

M. ROCK CREEK LN.

Fair

Over: ROCK CREEK

0.9 MI NW OF HWY 19, Gilliam, OR

Built 1960 Load: 29.5 t ADT: 57

WOLF HOLLOW LANE

Fair

Over: ROCK CREEK

4.4 MI NE OF HWY 19, Gilliam, OR

Built 1967 Load: 30.8 t ADT: 57

OR 74 (HWY 052)

Fair

Over: UPRR

027 MI N RHEA, Gilliam, OR

Built 1964 Load: 31.1 t ADT: 185

LONE ROCK ROAD

Fair

Over: LONE ROCK CREEK

LONE ROCK, Gilliam, OR

Built 2020 Load: 32.7 t ADT: 33

ALVILLE LANE

Fair

Over: FERRY CANYON CREEK

1.0 MI W OFF HWY 206, Gilliam, OR

Built 2013 Load: 34.7 t ADT: 13

FOURMILE ROAD

Fair

Over: EIGHTMILE CREEK

4.4 MI SE OF HWY 19, Gilliam, OR

Built 1958 Load: 37.2 t ADT: 15

MIKKALO LANE

Fair

Over: HAY CREEK

7.3 MI W OF HWY 19, Gilliam, OR

Built 1964 Load: 37.2 t ADT: 13

MORRIS ROAD

Fair

Over: ROCK CREEK

14.3 MI NW OF HWY 19, Gilliam, OR

Built 1991 Load: 38.1 t ADT: 20

MIKKALO LANE

Fair

Over: SCOTT CANYON CREEK

4.5 MI W OF HWY 19, Gilliam, OR

Built 1973 Load: 41.7 t ADT: 13

Middle Rock CRK LN

Fair

Over: JUNIPER CANYON CREEK

0.05 MI N OF HWY 19, Gilliam, OR

Built 1973 Load: 43.5 t ADT: 58

I-84 (HWY 002) EB

Good

Over: WILLOW CREEK EB

011 MI E HEPPNER JCT, Gilliam, OR

Built 1965 Load: 17.2 t ADT: 5,757

OR 19 (HWY 005)

Good

Over: THIRTYMILE CR

053 MI S OF CONDON SCL, Gilliam, OR

Built 1972 Load: 17.8 t ADT: 400

I-84 (HWY 002)

Good

Over: JOHN DAY RIVER

047 MI E RUFUS, Gilliam, OR

Built 1963 Load: 20.4 t ADT: 12,129

OR 19 (HWY 005)

Good

Over: ROCK CREEK (OLEX)

16.0 MI SOUTH ARLINGTON, Gilliam, OR

Built 2005 Load: 21.4 t ADT: 171

OR 74 (HWY 052)

Good

Over: WILLOW CREEK

03.94 MI S JCT HWY NO 2, Gilliam, OR

Built 1979 Load: 24.0 t ADT: 185

OR 19 (HWY 005)

Good

Over: CHINA CREEK

IN ARLINGTON, Gilliam, OR

Built 1964 Load: 39.2 t ADT: 593

BASELINE RD

Good

Over: EIGHTMILE CREEK

8.9 MI E OF HWY 19, Gilliam, OR

Built 2023 Load: 40.8 t ADT: 28

OR 19 (HWY 005) CO

Good

Over: CHINA CREEK

IN ARLINGTON, Gilliam, OR

Built 1964 Load: 44.4 t ADT: 232

OR 19 (HWY 005)

Good

Over: JUNIPER CANYON

18.1 MI S ARLINGTON, Gilliam, OR

Built 1982 Load: 48.3 t ADT: 176

Port Access Road

Good

Over: CHINA CREEK

IN ARLINGTON, Gilliam, OR

Built 1954 Load: 48.6 t ADT: 66

FRENCH CHARLIE RD

Good

Over: ROCK CREEK

4.5 MI NW OF HWY 19, Gilliam, OR

Built 1987 Load: 50.8 t ADT: 13

RHEA ROAD

Good

Over: WILLOW CREEK EB

0.05 MI W OF HWY 74, Gilliam, OR

Built 1987 Load: 53.5 t ADT: 10

OR 19 (HWY 005)

Good

Over: CHINA CREEK

040 MI S HWY 006 JCT, Gilliam, OR

Built 1995 Load: 69.0 t ADT: 747

OR 19 (HWY 005)

Good

Over: CONDON CANYON CR

046 MI S OF CONDON SCL, Gilliam, OR

Built 1972 Load: 69.0 t ADT: 400

OR 19 (HWY 005)

Good

Over: CONDON CANYON CR

047 MI S OF CONDON SCL, Gilliam, OR

Built 1972 Load: 69.0 t ADT: 400

OR 19 (HWY 005)

Good

Over: CONDON CANYON CR

050 MI S OF CONDON SCL, Gilliam, OR

Built 1972 Load: 69.0 t ADT: 400

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