Pacific County, WA

120 public highway bridges

Pacific County Bridge Snapshot

Pacific County, Washington contains 120 public highway bridges in the FHWA National Bridge Inventory. Roughly 56.7% are rated “Good,” 37.5% “Fair,” 5.8% “Poor,” and 5.8% 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 WA 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.

120

Total Bridges

56.7%

Good

5.8%

Poor

5.8%

Structurally Deficient

Condition Distribution

Good

56.7% (68)

Fair

37.5% (45)

Poor

5.8% (7)

SD

5.8% (7)

All Bridges (120)

Sort:

SR 6

Over: HALF MOON CREEK

14.6 E JCT US 101, Pacific, WA

Built 1917 Load: 13.6 t ADT: 1,561

LAGERGREN-SUNSHINE

Over: SOUTH NEMAH RIVER

5.7 NW JCT 4 & 101, Pacific, WA

Built 1959 Load: 13.6 t ADT: 50

CAMP ONE ROAD

Over: NORTH FORK WILLAPA RIVER

3.1 E JCT 6 & 101, Pacific, WA

Built 1984 Load: 13.6 t ADT: 375

FALLS CREEK ROAD

Over: WILLAPA RIVER

0.25 SW JCT SR 6, Pacific, WA

Built 1949 Load: 15.4 t ADT: 87

NORTH RIVER VALLEY

Over: FALL RIVER

2.6 S GRAY HAR CO, Pacific, WA

Built 1953 Load: 16.3 t ADT: 128

NORTH RIVER ROAD

Over: NORTH RIVER

00.0 PACIFIC CO LIN, Pacific, WA

Built 1959 Load: 17.2 t ADT: 204

SO VALLEY ROAD

Over: SO FORK NASELLE RIVER

1.0 S JCT 4 & 401, Pacific, WA

Built 1965 Load: 18.1 t ADT: 506

TIENHAARA ROAD

Over: SALMON CREEK

0.1 W WAHKIAKUM CO, Pacific, WA

Built 1980 Load: 19.0 t ADT: 74

HECKARD ROAD

Over: SLOUGH

3.2 SE JCT 101 & 6, Pacific, WA

Built 1916 Load: 19.0 t ADT: 226

US 101

Over: HALF BRIDGE

25.4 N JCT SR 4, Pacific, WA

Built 1963 Load: 20.4 t ADT: 7,223

US 101

Over: SOUTH NEMAH RIVER

3.6 N JCT SR 4, Pacific, WA

Built 1957 Load: 20.9 t ADT: 2,728

NORTH VALLEY ROAD

Over: NASELLE RIVER

3.0 E JCT 4 & 401, Pacific, WA

Built 1963 Load: 21.8 t ADT: 152

US 101

Over: SOUTH NEMAH RIVER

1.7 N JCT SR 4, Pacific, WA

Built 1951 Load: 23.6 t ADT: 2,728

SMITH CREEK RD

Over: SMITH CREEK

0.29 E JCT SR 101, Pacific, WA

Built 1994 Load: 23.6 t ADT: 112

SR 6

Over: ROCK CREEK

23.2 E JCT US 101, Pacific, WA

Built 1928 Load: 23.7 t ADT: 1,561

US 101

Over: SMITH CREEK

4.3 N JCT SR 105, Pacific, WA

Built 1929 Load: 24.3 t ADT: 4,574

SR 105

Over: DRAINAGE

16.2 N JCT US 101, Pacific, WA

Built 1959 Load: 24.5 t ADT: 1,095

WALVILLE CREEK RD

Over: ROCK CREEK

0.18 NE JCT SR 6, Pacific, WA

Built 1981 Load: 24.5 t ADT: 34

US 101

Over: ELKHORN CR

5.7 N JCT SR 105, Pacific, WA

Built 1929 Load: 26.2 t ADT: 4,574

OVERMEYER ROAD

Over: ELK CREEK

1.5 E JCT 101 105, Pacific, WA

Built 1987 Load: 26.3 t ADT: 134

TRASK ROAD

Over: SO FORK PALIX RIVER

11.8 N JCT 4 & 101, Pacific, WA

Built 1992 Load: 26.3 t ADT: 159

SR 6

Over: ST PARKS TRAIL (PLUVIUS)

21.8 E JCT US 101, Pacific, WA

Built 1922 Load: 27.2 t ADT: 1,561

NEMAH VALLEY ROAD

Over: NEMAH RIVER

8.1 N JCT 4 & 101, Pacific, WA

Built 1981 Load: 27.2 t ADT: 74

ELKHORN ROAD

Over: ELKHORN CREEK

1.0 S GRAY HAR. CO., Pacific, WA

Built 1996 Load: 27.2 t ADT: 74

US 101

Over: TEAL SLOUGH

12.2 N JCT SR 103, Pacific, WA

Built 1934 Load: 28.1 t ADT: 1,852

SMITH CREEK ROAD

Over: SMITH CREEK

7.9 NE JCT 6 & 101, Pacific, WA

Built 1985 Load: 28.1 t ADT: 84

2ND STREET

Over: SLOUGH

2.39 W JCT SR 101, Pacific, WA

Built 1981 Load: 28.5 t ADT: 457

US 101

Over: BEAR RIVER

5.2 N JCT SR 103, Pacific, WA

Built 1956 Load: 29.2 t ADT: 1,852

US 101

Over: COLUMBIA R MEGLER

3.65 S OREGON LINE, Pacific, WA

Built 1966 Load: 32.7 t ADT: 6,800

US 101

Over: COLUMBIA R

0.96 S OREGON LINE, Pacific, WA

Built 1966 Load: 32.7 t ADT: 23,300

US 101

Over: PALIX RIVER

13.6 N JCT SR 4, Pacific, WA

Built 1991 Load: 33.6 t ADT: 3,048

MENLO SO.FORK ROAD

Over: RUE CREEK

5.01 S JCT SR 101, Pacific, WA

Built 1991 Load: 33.6 t ADT: 156

SR 401

Over: BEAN CR

6.9 N JCT US 101, Pacific, WA

Built 1958 Load: 34.0 t ADT: 2,827

US 101

Over: COLUMBIA R

3.37 S OREGON LINE, Pacific, WA

Built 1966 Load: 36.0 t ADT: 23,300

US 101

Over: NIAWIAKUM RIVER

14.8 N JCT SR 4, Pacific, WA

Built 1991 Load: 37.2 t ADT: 3,048

US 101

Over: NASELLE RIVER

12.9 N JCT SR 103, Pacific, WA

Built 1985 Load: 38.1 t ADT: 1,852

US 101

Over: N FK WILLAPA

0.7 N JCT SR 6, Pacific, WA

Built 1992 Load: 38.1 t ADT: 8,113

STAUFFER ROAD

Over: GREEN CREEK

0.79 S JCT SR 6, Pacific, WA

Built 1917 Load: 43.5 t ADT: 178

ELK PRAIRIE ROAD

Over: FERN CREEK

8.5 E LEWIS CO, Pacific, WA

Built 1916 Load: 44.4 t ADT: 85

LEBAM ROAD

Over: WILLAPA RIVER

13.0 SE JCT US 101, Pacific, WA

Built 1917 Load: 49.9 t ADT: 72

US 101

Over: JORGENSON SLOUGH

5.5 N JCT SR 4, Pacific, WA

Built 1939 Load: 58.0 t ADT: 2,728

US 101

Over: TIDE SLOUGH

6.7 N JCT SR 4, Pacific, WA

Built 1939 Load: 59.0 t ADT: 2,728

RAYMD/SOUTHBEND RD

Over: SKIDMORE SLOUGH

0.5 SE SR101 INTERSECTION, Pacific, WA

Built 2010 Load: 59.0 t ADT: 218

SR 105

Over: SLOUGH

7.6 N JCT US 101, Pacific, WA

Built 1958 Load: 89.8 t ADT: 1,095

US 101

Over: CHINOOK R

6.6 N JCT SR 401, Pacific, WA

Built 1927 Load: 96.9 t ADT: 7,107

US 101

Over: WALLICUT RIVER

8.7 N JCT SR 401, Pacific, WA

Built 1979 Load: 16.2 t ADT: 7,107

SR 401

Over: NASELLE R

11.4 N JCT US 101, Pacific, WA

Built 1953 Load: 16.8 t ADT: 2,897

Greenhead Slough R

Over: Greenhead Slough

Milepost 19.9 on US-101, Pacific, WA

Built 2015 Load: 17.2 t ADT: 10

ELK PRAIRIE ROAD

Over: WILLAPA RIVER NORTH FORK

19.1 SE JCT US 101, Pacific, WA

Built 1964 Load: 17.2 t ADT: 65

MENLO-SO.FORK ROAD

Over: RUE CREEK

4.70 S JCT SR 101, Pacific, WA

Built 1960 Load: 18.1 t ADT: 138

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026