Total bridges
120
Public highway bridges in Pacific County
County profile · official public datasets
Pacific County, WA
120 public highway bridges tracked in the FHWA National Bridge Inventory: 56.7% rated Good, 37.5% Fair, 5.8% Poor.
- 120
- Public bridges
- 56.7%
- Good condition
- 5.8%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Pacific County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 21st
- of 39 on Poor share
- 5.8%
- Poor-condition share
- 120
- public highway bridges
- 1974
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Pacific County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Pacific County ranks #21 of 39 Washington counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.8%). Pacific County, Washington contains 120 public highway bridges. Roughly 56.7% are rated “Good,” 37.5% “Fair,” and 5.8% “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.
Good condition
56.7%
68 of 120 rated 7-9
Fair condition
37.5%
45 of 120 rated 5-6
Poor condition
5.8%
7 of 120 rated 4 or below
In-state Poor-share rank
#21 of 39
Among Washington counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 120 NBI-tracked bridges by lowest applicable component rating.
Good 56.7% (68)
Fair 37.5% (45)
Poor 5.8% (7)
Pacific County's Poor-condition bridges carry 18,234 vehicle crossings a day
That is 8% of the county's reported daily bridge traffic on 5.8% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 2,605 crossings a day against 1,305 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 120 of 120 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
43.3% of Pacific County's bridges have passed the 50-year mark
52 of the 120 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 56.7% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 57.4% of the county's Poor-condition bridge traffic
US 101 over S FK WILLAPA RIVER, built 1966, carries 10,471 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 7-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 18,234 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Pacific County's bridges were built
120 bridges with a recorded construction year, grouped by decade
- 1910s 7
1910–1919
7 bridges
- 1920s 5
1920–1929
5 bridges
- 1930s 4
1930–1939
4 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s
1950–1959
14 bridges
- 1960s
1960–1969
18 bridges
- 1970s 9
1970–1979
9 bridges
- 1980s
1980–1989
18 bridges
- 1990s
1990–1999
29 bridges
- 2000s 1
2000–2009
1 bridges
- 2010s
2010–2019
12 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1990s, when 29 of the county's bridges still in the inventory were built, which is 24.2% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1974) matches the Washington average (1975).
How Pacific County compares with Washington's closest counties by inventory size
The 5 Washington counties nearest Pacific County in number of bridges, with their condition splits. Its 5.8% Poor share is the 5th-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1978 is in line with the group.
Showing the 5 closest of 38 Washington counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Franklin County | 134 | 56% | 39.6% | 4.5% | 1970 |
| Mason County | 133 | 53.4% | 42.1% | 4.5% | 1975 |
| Skamania County | 120 | 45.8% | 45% | 9.2% | 1974 |
| Pacific County (this page) | 120 | 56.7% | 37.5% | 5.8% | 1974 |
| Kitsap County | 115 | 71.3% | 27.8% | 0.9% | 1989 |
| Jefferson County | 99 | 57.6% | 38.4% | 4% | 1982 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Pacific County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Pacific County, both outside Washington so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside WA (120 bridges here).
- Matanuska-Susitna County, AK · 120 bridges
- Indian River County, FL · 120 bridges
- Perry County, MO · 120 bridges
- Schuyler County, MO · 120 bridges
Similar average build year
Nearest mean year-built outside WA (1974 here).
- Knox County, TN · avg 1974 · 588 bridges
- Summit County, OH · avg 1974 · 563 bridges
- Onondaga County, NY · avg 1974 · 472 bridges
- Orange County, NY · avg 1974 · 472 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (120)
SR 6
FairOver: HALF MOON CREEK
14.6 E JCT US 101, Pacific, WA
Built 1917 Load: 13.6 t ADT: 1,561
LAGERGREN-SUNSHINE
FairOver: SOUTH NEMAH RIVER
5.7 NW JCT 4 & 101, Pacific, WA
Built 1959 Load: 13.6 t ADT: 50
CAMP ONE ROAD
FairOver: NORTH FORK WILLAPA RIVER
3.1 E JCT 6 & 101, Pacific, WA
Built 1984 Load: 13.6 t ADT: 375
FALLS CREEK ROAD
FairOver: WILLAPA RIVER
0.25 SW JCT SR 6, Pacific, WA
Built 1949 Load: 15.4 t ADT: 87
NORTH RIVER VALLEY
FairOver: FALL RIVER
2.6 S GRAY HAR CO, Pacific, WA
Built 1953 Load: 16.3 t ADT: 128
NORTH RIVER ROAD
FairOver: NORTH RIVER
00.0 PACIFIC CO LIN, Pacific, WA
Built 1959 Load: 17.2 t ADT: 204
SO VALLEY ROAD
FairOver: SO FORK NASELLE RIVER
1.0 S JCT 4 & 401, Pacific, WA
Built 1965 Load: 18.1 t ADT: 506
TIENHAARA ROAD
FairOver: SALMON CREEK
0.1 W WAHKIAKUM CO, Pacific, WA
Built 1980 Load: 19.0 t ADT: 74
HECKARD ROAD
FairOver: SLOUGH
3.2 SE JCT 101 & 6, Pacific, WA
Built 1916 Load: 19.0 t ADT: 226
US 101
FairOver: HALF BRIDGE
25.4 N JCT SR 4, Pacific, WA
Built 1963 Load: 20.4 t ADT: 7,223
US 101
FairOver: SOUTH NEMAH RIVER
3.6 N JCT SR 4, Pacific, WA
Built 1957 Load: 20.9 t ADT: 2,728
NORTH VALLEY ROAD
FairOver: NASELLE RIVER
3.0 E JCT 4 & 401, Pacific, WA
Built 1963 Load: 21.8 t ADT: 152
US 101
FairOver: SOUTH NEMAH RIVER
1.7 N JCT SR 4, Pacific, WA
Built 1951 Load: 23.6 t ADT: 2,728
SMITH CREEK RD
FairOver: SMITH CREEK
0.29 E JCT SR 101, Pacific, WA
Built 1994 Load: 23.6 t ADT: 112
SR 6
FairOver: ROCK CREEK
23.2 E JCT US 101, Pacific, WA
Built 1928 Load: 23.7 t ADT: 1,561
US 101
FairOver: SMITH CREEK
4.3 N JCT SR 105, Pacific, WA
Built 1929 Load: 24.3 t ADT: 4,574
SR 105
FairOver: DRAINAGE
16.2 N JCT US 101, Pacific, WA
Built 1959 Load: 24.5 t ADT: 1,095
WALVILLE CREEK RD
FairOver: ROCK CREEK
0.18 NE JCT SR 6, Pacific, WA
Built 1981 Load: 24.5 t ADT: 34
US 101
FairOver: ELKHORN CR
5.7 N JCT SR 105, Pacific, WA
Built 1929 Load: 26.2 t ADT: 4,574
OVERMEYER ROAD
FairOver: ELK CREEK
1.5 E JCT 101 105, Pacific, WA
Built 1987 Load: 26.3 t ADT: 134
TRASK ROAD
FairOver: SO FORK PALIX RIVER
11.8 N JCT 4 & 101, Pacific, WA
Built 1992 Load: 26.3 t ADT: 159
SR 6
FairOver: ST PARKS TRAIL (PLUVIUS)
21.8 E JCT US 101, Pacific, WA
Built 1922 Load: 27.2 t ADT: 1,561
NEMAH VALLEY ROAD
FairOver: NEMAH RIVER
8.1 N JCT 4 & 101, Pacific, WA
Built 1981 Load: 27.2 t ADT: 74
ELKHORN ROAD
FairOver: ELKHORN CREEK
1.0 S GRAY HAR. CO., Pacific, WA
Built 1996 Load: 27.2 t ADT: 74
US 101
FairOver: TEAL SLOUGH
12.2 N JCT SR 103, Pacific, WA
Built 1934 Load: 28.1 t ADT: 1,852
SMITH CREEK ROAD
FairOver: SMITH CREEK
7.9 NE JCT 6 & 101, Pacific, WA
Built 1985 Load: 28.1 t ADT: 84
2ND STREET
FairOver: SLOUGH
2.39 W JCT SR 101, Pacific, WA
Built 1981 Load: 28.5 t ADT: 457
US 101
FairOver: BEAR RIVER
5.2 N JCT SR 103, Pacific, WA
Built 1956 Load: 29.2 t ADT: 1,852
US 101
FairOver: COLUMBIA R MEGLER
3.65 S OREGON LINE, Pacific, WA
Built 1966 Load: 32.7 t ADT: 6,800
US 101
FairOver: COLUMBIA R
0.96 S OREGON LINE, Pacific, WA
Built 1966 Load: 32.7 t ADT: 23,300
US 101
FairOver: PALIX RIVER
13.6 N JCT SR 4, Pacific, WA
Built 1991 Load: 33.6 t ADT: 3,048
MENLO SO.FORK ROAD
FairOver: RUE CREEK
5.01 S JCT SR 101, Pacific, WA
Built 1991 Load: 33.6 t ADT: 156
SR 401
FairOver: BEAN CR
6.9 N JCT US 101, Pacific, WA
Built 1958 Load: 34.0 t ADT: 2,827
US 101
FairOver: COLUMBIA R
3.37 S OREGON LINE, Pacific, WA
Built 1966 Load: 36.0 t ADT: 23,300
US 101
FairOver: NIAWIAKUM RIVER
14.8 N JCT SR 4, Pacific, WA
Built 1991 Load: 37.2 t ADT: 3,048
US 101
FairOver: NASELLE RIVER
12.9 N JCT SR 103, Pacific, WA
Built 1985 Load: 38.1 t ADT: 1,852
US 101
FairOver: N FK WILLAPA
0.7 N JCT SR 6, Pacific, WA
Built 1992 Load: 38.1 t ADT: 8,113
STAUFFER ROAD
FairOver: GREEN CREEK
0.79 S JCT SR 6, Pacific, WA
Built 1917 Load: 43.5 t ADT: 178
ELK PRAIRIE ROAD
FairOver: FERN CREEK
8.5 E LEWIS CO, Pacific, WA
Built 1916 Load: 44.4 t ADT: 85
LEBAM ROAD
FairOver: WILLAPA RIVER
13.0 SE JCT US 101, Pacific, WA
Built 1917 Load: 49.9 t ADT: 72
US 101
FairOver: JORGENSON SLOUGH
5.5 N JCT SR 4, Pacific, WA
Built 1939 Load: 58.0 t ADT: 2,728
US 101
FairOver: TIDE SLOUGH
6.7 N JCT SR 4, Pacific, WA
Built 1939 Load: 59.0 t ADT: 2,728
RAYMD/SOUTHBEND RD
FairOver: SKIDMORE SLOUGH
0.5 SE SR101 INTERSECTION, Pacific, WA
Built 2010 Load: 59.0 t ADT: 218
SR 105
FairOver: SLOUGH
7.6 N JCT US 101, Pacific, WA
Built 1958 Load: 89.8 t ADT: 1,095
US 101
FairOver: CHINOOK R
6.6 N JCT SR 401, Pacific, WA
Built 1927 Load: 96.9 t ADT: 7,107
US 101
GoodOver: WALLICUT RIVER
8.7 N JCT SR 401, Pacific, WA
Built 1979 Load: 16.2 t ADT: 7,107
SR 401
GoodOver: NASELLE R
11.4 N JCT US 101, Pacific, WA
Built 1953 Load: 16.8 t ADT: 2,897
Greenhead Slough R
GoodOver: Greenhead Slough
Milepost 19.9 on US-101, Pacific, WA
Built 2015 Load: 17.2 t ADT: 10
ELK PRAIRIE ROAD
GoodOver: WILLAPA RIVER NORTH FORK
19.1 SE JCT US 101, Pacific, WA
Built 1964 Load: 17.2 t ADT: 65
MENLO-SO.FORK ROAD
GoodOver: 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.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.