Total bridges
196
Public highway bridges in Page County
County profile · official public datasets
Page County, IA
196 public highway bridges tracked in the FHWA National Bridge Inventory: 24% rated Good, 43.9% Fair, 32.1% Poor.
- 196
- Public bridges
- 24%
- Good condition
- 32.1%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Page County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 84th
- of 99 on Poor share
- 32.1%
- Poor-condition share
- 196
- public highway bridges
- 1975
- 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.
Page County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Page County ranks #84 of 99 Iowa counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 32.1%). Page County, Iowa contains 196 public highway bridges. Roughly 24% are rated “Good,” 43.9% “Fair,” and 32.1% “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
24%
47 of 196 rated 7-9
Fair condition
43.9%
86 of 196 rated 5-6
Poor condition
32.1%
63 of 196 rated 4 or below
In-state Poor-share rank
#84 of 99
Among Iowa counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 196 NBI-tracked bridges by lowest applicable component rating.
Good 24% (47)
Fair 43.9% (86)
Poor 32.1% (63)
Page County's Poor-condition bridges carry 8,414 vehicle crossings a day
That is 10.9% of the county's reported daily bridge traffic on 32.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 134 crossings a day against 494 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 196 of 196 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
39.8% of Page County's bridges have passed the 50-year mark
78 of the 196 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 24% 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 16.8% of the county's Poor-condition bridge traffic
SOUTHWEST RD over JOHNSONS RUN, built 1930, carries 1,414 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 63-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 8,414 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Page County's bridges were built
196 bridges with a recorded construction year, grouped by decade
- 1900s 9
1900–1909
9 bridges
- 1920s 2
1920–1929
2 bridges
- 1930s 4
1930–1939
4 bridges
- 1940s 6
1940–1949
6 bridges
- 1950s
1950–1959
27 bridges
- 1960s
1960–1969
21 bridges
- 1970s
1970–1979
27 bridges
- 1980s
1980–1989
41 bridges
- 1990s
1990–1999
31 bridges
- 2000s 15
2000–2009
15 bridges
- 2010s 8
2010–2019
8 bridges
- 2020s 5
2020–2029
5 bridges
What this shows Construction peaked in the 1980s, when 41 of the county's bridges still in the inventory were built, which is 20.9% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1975) matches the Iowa average (1979).
How Page County compares with Iowa's closest counties by inventory size
The 5 Iowa counties nearest Page County in number of bridges, with their condition splits. Its 32.1% Poor share is the 4th-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1975 is in line with the group.
Showing the 5 closest of 98 Iowa counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Dallas County | 199 | 44.7% | 46.2% | 9% | 1978 |
| Allamakee County | 197 | 31.5% | 59.4% | 9.1% | 1975 |
| Calhoun County | 197 | 24.4% | 50.3% | 25.4% | 1971 |
| Decatur County | 197 | 18.3% | 41.1% | 40.6% | 1972 |
| Page County (this page) | 196 | 24% | 43.9% | 32.1% | 1975 |
| Lucas County | 195 | 32.3% | 34.4% | 33.3% | 1977 |
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 Page 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 Page County, both outside Iowa so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IA (196 bridges here).
- Wilkin County, MN · 196 bridges
- Sampson County, NC · 196 bridges
- Mifflin County, PA · 196 bridges
- Cherokee County, TX · 196 bridges
Similar average build year
Nearest mean year-built outside IA (1975 here).
- San Bernardino County, CA · avg 1975 · 1,422 bridges
- Lane County, OR · avg 1975 · 1,010 bridges
- Fulton County, GA · avg 1975 · 775 bridges
- Westmoreland County, PA · avg 1975 · 620 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (86)
310TH STREET
FairOver: MIDDLE MILL CREEK
067372901, Page, IA
Built 1980 Load: 32.7 t ADT: 309
305TH STREET
FairOver: STREAM
067362207, Page, IA
Built 1990 Load: 32.7 t ADT: 29
270TH STREET
FairOver: MIDDLE MILL CREEK
067370401, Page, IA
Built 1987 Load: 32.7 t ADT: 45
280TH STREET
FairOver: MIDDLE MILL CREEK
067370901, Page, IA
Built 1988 Load: 32.7 t ADT: 399
P AVENUE
FairOver: EAST MILL CREEK
067371502, Page, IA
Built 1997 Load: 32.7 t ADT: 11
290TH STREET
FairOver: MIDDLE MILL CREEK
067371601, Page, IA
Built 1988 Load: 32.7 t ADT: 34
OAK AVENUE
FairOver: MIDDLE MILL CREEK
067371713, Page, IA
Built 1989 Load: 32.7 t ADT: 29
NUTMEG AVENUE
FairOver: MIDDLE MILL CREEK
067372006, Page, IA
Built 1992 Load: 32.7 t ADT: 29
OAK AVENUE
FairOver: EAST MILL CREEK
067372104, Page, IA
Built 1988 Load: 32.7 t ADT: 40
280TH STREET
FairOver: LONG BRANCH
067381101, Page, IA
Built 1997 Load: 32.7 t ADT: 20
160TH STREET
FairOver: STREAM
069370401, Page, IA
Built 1988 Load: 32.7 t ADT: 34
120TH STREET
FairOver: STREAM
070361501, Page, IA
Built 1990 Load: 32.7 t ADT: 45
UPLAND AVENUE
FairOver: STREAM
070362704, Page, IA
Built 1994 Load: 32.7 t ADT: 20
LUMBER AVENUE
FairOver: STREAM
070370704, Page, IA
Built 1990 Load: 32.7 t ADT: 15
105TH STREET
FairOver: STREAM
070380205, Page, IA
Built 2005 Load: 32.7 t ADT: 26
F AVENUE
FairOver: STREAM
070381802, Page, IA
Built 1986 Load: 32.7 t ADT: 34
V AVENUE
FairOver: STREAM
070361102, Page, IA
Built 1987 Load: 32.7 t ADT: 20
FIELD ENT.
FairOver: STREAM (SDB)
069371502, Page, IA
Built 1995 Load: 32.7 t ADT: 10
N AVENUE
FairOver: SNAKE CREEK
069372102, Page, IA
Built 1986 Load: 33.3 t ADT: 110
230TH STREET
FairOver: STREAM
068391301, Page, IA
Built 1986 Load: 33.8 t ADT: 26
IA 48
FairOver: ROCKY BRANCH
1.2 MI. S OF SR M-41, Page, IA
Built 1969 Load: 34.0 t ADT: 2,380
V AVENUE
FairOver: BUCHANAN CREEK
067361506, Page, IA
Built 1975 Load: 35.0 t ADT: 50
US 71
FairOver: STREAM
0.4 MI. N OF SR J-53, Page, IA
Built 1972 Load: 35.5 t ADT: 3,450
O AVENUE
FairOver: EAST TARKIO RIVER
070371004, Page, IA
Built 1993 Load: 35.6 t ADT: 668
US 71 & IA 2
FairOver: WEST NODAWAY RIVER
0.3 MI. S OF N JCT. 2, Page, IA
Built 1972 Load: 36.1 t ADT: 3,360
HACKBERRY AVE
FairOver: LONG BRANCH
067382104, Page, IA
Built 1975 Load: 36.3 t ADT: 199
HACKBERRY AVE
FairOver: STREAM
067382806, Page, IA
Built 1975 Load: 36.3 t ADT: 141
160TH STREET
FairOver: E TARKIO RIVER
069370609, Page, IA
Built 1986 Load: 37.1 t ADT: 45
US 59
FairOver: EAST NISHNABOTNA RIVER
1.0 MI. N. OF IA. 48, Page, IA
Built 1929 Load: 37.5 t ADT: 1,780
US 71
FairOver: STREAM
0.8 MI N OF N JCT SR J-20, Page, IA
Built 1972 Load: 38.0 t ADT: 2,090
110TH STREET
FairOver: NISHNABOTNA RIVER
070391201, Page, IA
Built 1980 Load: 41.0 t ADT: 29
HACKBERRY AVE
FairOver: TARKIO RIVER
067380806, Page, IA
Built 1975 Load: 42.3 t ADT: 199
270TH STREET
FairOver: WEST TARKIO CREEK
067390401, Page, IA
Built 1979 Load: 42.3 t ADT: 300
WILLOW AVENUE
FairOver: STREAM
069362604, Page, IA
Built 1954 Load: 44.6 t ADT: 71
IA 48
FairOver: RAMP CREEK
0.9 Mi. N oF Jct. SR M-56, Page, IA
Built 1987 Load: 47.8 t ADT: 1,780
B AVENUE
FairOver: STREAM
069390906, Page, IA
Built 1990 Load: 54.1 t ADT: 29
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.