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.
Good-condition bridges (68)
NORTH NEMAH RD
GoodOver: WILLIAMS CREEK
7.1 N JCT 4 AND 101, Pacific, WA
Built 1999 Load: 38.1 t ADT: 238
NORTH VALLEY ROAD
GoodOver: DOG CREEK
2.9 E JCT 4 & 401, Pacific, WA
Built 1984 Load: 39.0 t ADT: 74
SMITH CREEK RD
GoodOver: SMITH CREEK
4.9 N JCT 101 & 105, Pacific, WA
Built 1993 Load: 39.0 t ADT: 86
PEHL ROAD
GoodOver: SO FORK WILLAPA
2.48 S JCT SR 6, Pacific, WA
Built 1991 Load: 39.9 t ADT: 18
DIXON ROAD
GoodOver: CLEARWATER CREEK
5.1 N JCT 105-101, Pacific, WA
Built 1992 Load: 39.9 t ADT: 16
SR 6
GoodOver: SALMON CREEK
22.6 E JCT US 101, Pacific, WA
Built 2019 Load: 40.5 t ADT: 1,561
SR 105
GoodOver: NORTH RIVER
10.5 N JCT US 101, Pacific, WA
Built 2014 Load: 40.8 t ADT: 1,095
SR 401
GoodOver: NASELLE R OVERFLOW
12.0 N JCT US 101, Pacific, WA
Built 1964 Load: 41.7 t ADT: 2,897
MONOHAN LANDING RD
GoodOver: WILSON CREEK
4.0 E JCT 105 & 101, Pacific, WA
Built 1992 Load: 41.7 t ADT: 461
Rue Creek Road
GoodOver: Rue Creek
1.7 SE JCT SR6, Pacific, WA
Built 2021 Load: 43.1 t ADT: 130
US 101
GoodOver: MIDDLE NEMAH RIVER
5.0 N JCT SR 4, Pacific, WA
Built 2014 Load: 43.4 t ADT: 2,728
US 101
GoodOver: BONE RIVER
16.3 N JCT SR 4, Pacific, WA
Built 2013 Load: 44.7 t ADT: 3,392
SR 6
GoodOver: WILLAPA RIVER
9.4 E JCT US 101, Pacific, WA
Built 1953 Load: 46.0 t ADT: 1,780
SR 4
GoodOver: NASELLE RIVER
1.3 E JCT SR 401, Pacific, WA
Built 1987 Load: 46.3 t ADT: 2,130
US 101
GoodOver: NORTH NEMAH RIVER
6.3 N JCT SR 4, Pacific, WA
Built 1992 Load: 48.1 t ADT: 2,728
MILL CREEK ROAD
GoodOver: MILL CREEK
10.8 SE JCT 6 & 101, Pacific, WA
Built 1995 Load: 51.7 t ADT: 84
Rue Creek Road
GoodOver: West Fork Rue Creek
1.99 SE JCT SR 6, Pacific, WA
Built 2017 Load: 59.9 t ADT: 108
SR 6
GoodOver: FORK CREEK
12.2 E JCT US 101, Pacific, WA
Built 1918 Load: 89.8 t ADT: 1,780
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.