Total bridges
190
Public highway bridges in Lincoln County
County profile · official public datasets
Lincoln County, OR
190 public highway bridges tracked in the FHWA National Bridge Inventory: 41.6% rated Good, 51.1% Fair, 7.4% Poor.
- 190
- Public bridges
- 41.6%
- Good condition
- 7.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Lincoln County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 31st
- of 36 on Poor share
- 7.4%
- Poor-condition share
- 190
- 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.
Lincoln County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Lincoln County ranks #31 of 36 Oregon counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7.4%). Lincoln County, Oregon contains 190 public highway bridges. Roughly 41.6% are rated “Good,” 51.1% “Fair,” and 7.4% “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
41.6%
79 of 190 rated 7-9
Fair condition
51.1%
97 of 190 rated 5-6
Poor condition
7.4%
14 of 190 rated 4 or below
In-state Poor-share rank
#31 of 36
Among Oregon counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 190 NBI-tracked bridges by lowest applicable component rating.
Good 41.6% (79)
Fair 51.1% (97)
Poor 7.4% (14)
Lincoln County's Poor-condition bridges carry 42,092 vehicle crossings a day
That is 8.5% of the county's reported daily bridge traffic on 7.4% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 3,007 crossings a day against 1,982 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 190 of 190 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
55.8% of Lincoln County's bridges have passed the 50-year mark
106 of the 190 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 41.6% 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 41.3% of the county's Poor-condition bridge traffic
US101 (HWY 9) over Yaquina Bay, built 1934, carries 17,391 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 14-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 42,092 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Lincoln County's bridges were built
190 bridges with a recorded construction year, grouped by decade
- 1910s 1
1910–1919
1 bridges
- 1920s 6
1920–1929
6 bridges
- 1930s 12
1930–1939
12 bridges
- 1940s 8
1940–1949
8 bridges
- 1950s
1950–1959
29 bridges
- 1960s
1960–1969
40 bridges
- 1970s
1970–1979
23 bridges
- 1980s 13
1980–1989
13 bridges
- 1990s 6
1990–1999
6 bridges
- 2000s
2000–2009
27 bridges
- 2010s
2010–2019
21 bridges
- 2020s 4
2020–2029
4 bridges
What this shows Construction peaked in the 1960s, when 40 of the county's bridges still in the inventory were built, which is 21.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1974) matches the Oregon average (1975).
How Lincoln County compares with Oregon's closest counties by inventory size
The 5 Oregon counties nearest Lincoln County in number of bridges, with their condition splits. Its 7.4% Poor share is the 6th-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1976 is in line with the group.
Showing the 5 closest of 35 Oregon counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Benton County | 190 | 32.6% | 60% | 7.4% | 1974 |
| Lincoln County (this page) | 190 | 41.6% | 51.1% | 7.4% | 1974 |
| Baker County | 188 | 27.7% | 65.4% | 6.9% | 1972 |
| Malheur County | 181 | 31.5% | 65.7% | 2.8% | 1976 |
| Union County | 166 | 42.2% | 54.2% | 3.6% | 1980 |
| Polk County | 161 | 29.2% | 64% | 6.8% | 1976 |
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 Lincoln 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 Lincoln County, both outside Oregon so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside OR (190 bridges here).
- Clinton County, IL · 190 bridges
- Wapello County, IA · 190 bridges
- Webster County, IA · 190 bridges
- Bienville County, LA · 190 bridges
Similar average build year
Nearest mean year-built outside OR (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.
Poor-condition bridges (14)
NO BEAVER CR ROAD
PoorOver: NORTH FORK BEAVER CREEK
058 MI E OF HWY101 ON 602, Lincoln, OR
Built 1960 Load: 9.4 t ADT: 119
CAMP 12 LOOP
PoorOver: MILL CREEK
010 MI S OF SILETZ, Lincoln, OR
Built 1975 Load: 13.3 t ADT: 106
HWY 180
PoorOver: Yaquina River
001 MI E NASHVILLE, Lincoln, OR
Built 1941 Load: 15.9 t ADT: 248
SO BEAVER CR RD
PoorOver: SO FK BEAVER CREEK
020 MI SE ONA STATE PARK, Lincoln, OR
Built 1961 Load: 16.8 t ADT: 312
US101 (HWY 9)
PoorOver: Yaquina Bay
NEWPORT S C LIMITS, Lincoln, OR
Built 1934 Load: 17.2 t ADT: 17,391
ELK CITY ROAD
PoorOver: YAQUINA RIVER
023 MI NORTH OF ELK CITY, Lincoln, OR
Built 1955 Load: 19.1 t ADT: 234
ELK CITY ROAD
PoorOver: BIG ELK CREEK
001 MI NORTH OF ELK CITY, Lincoln, OR
Built 1958 Load: 20.4 t ADT: 200
OR 229 (HWY 181)
PoorOver: Depot Creek
062 MI S SILETZ, Lincoln, OR
Built 1963 Load: 21.1 t ADT: 4,592
FEAGLES CREEK RD
PoorOver: BIG ELK CREEK
AT HARLAN, Lincoln, OR
Built 1963 Load: 24.9 t ADT: 53
OR 229 (Hwy 181)
PoorOver: Depot Creek
002 MI N HWY 33 JCT, Lincoln, OR
Built 1963 Load: 27.2 t ADT: 4,592
BIG CREEK ROAD
PoorOver: BIG CREEK
015 MI NO OF NEWPORT, Lincoln, OR
Built 1961 Load: 33.6 t ADT: 558
THREE ROCKS ROAD
PoorOver: CROWLEY CREEK
030 MI NW OF OTIS JCTN, Lincoln, OR
Built 1958 Load: 34.3 t ADT: 172
LOGSDEN ROAD
PoorOver: BIG ROCK CREEK
048 MI EAST OF LOGSDEN, Lincoln, OR
Built 1958 Load: 35.4 t ADT: 331
US 20 (HWY 33)
PoorOver: Beaver Creek
042 MI E OF HWY 9 JCT, Lincoln, OR
Built 1953 Load: 38.1 t ADT: 13,184
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.