County profile · official public datasets

Wapello County, IA

190 public highway bridges tracked in the FHWA National Bridge Inventory: 45.8% rated Good, 39.5% Fair, 14.7% Poor.

190
Public bridges
45.8%
Good condition
14.7%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Wapello County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

Top 32%
lowest Poor share in state
14.7%
Poor-condition share
190
public highway bridges
1987
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.

Wapello County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Wapello County ranks #32 of 99 Iowa counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 14.7%). Wapello County, Iowa contains 190 public highway bridges. Roughly 45.8% are rated “Good,” 39.5% “Fair,” and 14.7% “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.

Total bridges

190

Public highway bridges in Wapello County

Good condition

45.8%

87 of 190 rated 7-9

Fair condition

39.5%

75 of 190 rated 5-6

Poor condition

14.7%

28 of 190 rated 4 or below

In-state Poor-share rank

#32 of 99

Among Iowa counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 190 NBI-tracked bridges by lowest applicable component rating.

Good
45.8% (87)
Fair
39.5% (75)
Poor
14.7% (28)

Wapello County's Poor-condition bridges carry 4,085 vehicle crossings a day

That is 1.2% of the county's reported daily bridge traffic on 14.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 146 crossings a day against 1,780 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.

31.1% of Wapello County's bridges have passed the 50-year mark

59 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 45.8% 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 23.3% of the county's Poor-condition bridge traffic

FM over VILLAGE CREEK, built 1961, carries 950 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 28-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 4,085 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Wapello County's bridges were built

190 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 45 of the county's bridges still in the inventory were built, which is 23.7% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1987, 8 years newer than the Iowa average of 1979.

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Wapello County compares with Iowa's closest counties by inventory size

The 5 Iowa counties nearest Wapello County in number of bridges, with their condition splits. Its 14.7% Poor share is the 2nd-lowest of these 6. Its average build year of 1987 against a peer-group mean of 1973 is 14 years newer.

Showing the 5 closest of 98 Iowa counties eligible for comparison.

Bridge inventory size and condition shares for Wapello County and the 5 Iowa counties closest to it in inventory size
County Bridges Poor
Page County 196 32.1%
Lucas County 195 33.3%
Webster County 190 25.3%
Wapello County (this page) 190 14.7%
Adams County 186 44.6%
Osceola County 185 8.6%

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 Wapello 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 Wapello County, both outside Iowa so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside IA (190 bridges here).

Similar average build year

Nearest mean year-built outside IA (1987 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All bridges (190)

FM

Fair

Over: STREAM

072152706, Wapello, IA

Built 1981 Load: 32.7 t ADT: 70

US 34 WB

Fair

Over: US 63

At the E Jct. U.S. 63, Wapello, IA

Built 2006 Load: 32.7 t ADT: 2,650

FM

Fair

Over: CEDAR CR

073132606, Wapello, IA

Built 1975 Load: 32.8 t ADT: 35

LOCAL

Fair

Over: BUCKEYE CREEK

072121306, Wapello, IA

Built 1987 Load: 33.3 t ADT: 21

US 34 WB

Fair

Over: IA 16

At jct. IA 16 and SR V43, Wapello, IA

Built 2006 Load: 33.3 t ADT: 3,900

WB 34

Fair

Over: OVER ABANDONED RR

0.7 mi. E of jct. IA 149, Wapello, IA

Built 1966 Load: 33.5 t ADT: 5,300

EB US 34

Fair

Over: BNSF RR

1.2 MI. E OF S JCT. US 63, Wapello, IA

Built 1967 Load: 33.6 t ADT: 4,250

US 63

Fair

Over: BROWN CREEK

1.9 mi. S of jct. IA 137, Wapello, IA

Built 1988 Load: 33.6 t ADT: 9,900

US 34 WB

Fair

Over: BARDELL STREET

0.5 MI. E OF JCT. IA 149, Wapello, IA

Built 1966 Load: 34.4 t ADT: 4,350

20TH ST

Fair

Over: SOAP CREEK

071132902, Wapello, IA

Built 1990 Load: 34.9 t ADT: 50

WB US 34

Fair

Over: BNSF RR

1.2 MI. E OF S JCT. US 63, Wapello, IA

Built 1968 Load: 35.0 t ADT: 4,250

US 34 WB

Fair

Over: CHURCH STREET

0.4 mi. E of jct. IA 149, Wapello, IA

Built 1966 Load: 35.6 t ADT: 4,350

US 34

Fair

Over: SOUTH AVERY CREEK

0.7 mi. E of Jct. SR T61, Wapello, IA

Built 1960 Load: 35.7 t ADT: 4,270

US 34 EB

Fair

Over: BARDELL STREET

0.5 MI. E OF JCT. IA 149, Wapello, IA

Built 1966 Load: 35.7 t ADT: 4,350

US 63 NB

Fair

Over: SUGAR CREEK

1.7 mi. N of N Jct. US 34, Wapello, IA

Built 2007 Load: 36.7 t ADT: 3,400

US 63 SB

Fair

Over: SUGAR CREEK

1.7 mi. N of N Jct. US 34, Wapello, IA

Built 2007 Load: 36.7 t ADT: 3,400

SB US 63

Fair

Over: COMSTOCK CREEK

0.6 MI. S of SR T67, Wapello, IA

Built 1988 Load: 36.8 t ADT: 4,600

MAIN ST

Fair

Over: US 34

1.4 mi. E of W Jct. US 63, Wapello, IA

Built 1967 Load: 37.4 t ADT: 1,432

FM

Fair

Over: SOAP CREEK

071123504, Wapello, IA

Built 1994 Load: 37.9 t ADT: 140

US 63 NB

Fair

Over: STREAM

1.2 mi. S of Jct. IA 137, Wapello, IA

Built 1988 Load: 38.5 t ADT: 9,900

US 63

Fair

Over: OVER ABANDON RR

4.8 MI. N OF SR J15., Wapello, IA

Built 1965 Load: 39.9 t ADT: 4,570

73RD ST

Fair

Over: US 34

2.1 mi. E of E Jct. US 63, Wapello, IA

Built 2006 Load: 41.9 t ADT: 1,370

MARKET ST

Fair

Over: DES MOINES RIVER

072142500, Wapello, IA

Built 1972 Load: 42.1 t ADT: 6,100

IA 16

Fair

Over: BNSF RR

0.4 mi. S of Jct. U.S. 34, Wapello, IA

Built 1984 Load: 45.2 t ADT: 2,440

US 63 SB

Fair

Over: FUDGE CREEK

4.3 mi. S of Jct. IA 137, Wapello, IA

Built 1997 Load: 58.0 t ADT: 4,950

LOCAL

Good

Over: SOUTH AVERY CREEK

072151503, Wapello, IA

Built 1930 Load: 0.0 t ADT: 11

LOCAL

Good

Over: LITTLE SOAP CREEK

071133404, Wapello, IA

Built 2005 Load: 18.0 t ADT: 50

US 34

Good

Over: DRAINAGE DITCH

1.5 mi. E of Jct. SR V37, Wapello, IA

Built 2005 Load: 23.8 t ADT: 9,600

LOCAL

Good

Over: SUGAR CREEK

072132805, Wapello, IA

Built 2015 Load: 24.5 t ADT: 423

LOCAL

Good

Over: BRANCH BUCKEYE CREEK

072122903, Wapello, IA

Built 1999 Load: 26.5 t ADT: 21

92ND ST

Good

Over: BUCKEYE CREEK

072122103, Wapello, IA

Built 2010 Load: 28.7 t ADT: 21

145TH AVE

Good

Over: US 63

1.4 mi. N of IA 149, Wapello, IA

Built 1997 Load: 30.4 t ADT: 1,140

US 34

Good

Over: BEAR CREEK

2.1 MI. W of JCT. IA 149, Wapello, IA

Built 2016 Load: 32.4 t ADT: 6,800

W PARK AVE

Good

Over: IOWA 149

1.4 mi. N of Jct. US 34, Wapello, IA

Built 2020 Load: 32.4 t ADT: 570

IA 149

Good

Over: CEDAR CREEK

2.2 MILES SOUTH OF IA 23, Wapello, IA

Built 2018 Load: 32.4 t ADT: 4,510

118TH AVE

Good

Over: VILLAGE CREEK

071130808, Wapello, IA

Built 2015 Load: 32.4 t ADT: 196

POINT ISABELLE

Good

Over: VILLAGE CREEK

071141404, Wapello, IA

Built 2013 Load: 32.4 t ADT: 110

100TH ST

Good

Over: BUCKEYE CREEK

072122101, Wapello, IA

Built 2014 Load: 32.4 t ADT: 41

H25 DAHLONEGA RD

Good

Over: CEDAR CREEK

072130301, Wapello, IA

Built 2014 Load: 32.4 t ADT: 380

DAHLONEGA RD

Good

Over: BR CEDAR CREEK

072130406, Wapello, IA

Built 2012 Load: 32.4 t ADT: 380

200TH AVE

Good

Over: SOUTH AVERY CREEK

072150102, Wapello, IA

Built 2020 Load: 32.4 t ADT: 62

118TH AVE

Good

Over: CEDAR CREEK

073131704, Wapello, IA

Built 2019 Load: 32.4 t ADT: 35

225TH AVE

Good

Over: NORTH AVERY CREEK

073153304, Wapello, IA

Built 2021 Load: 32.4 t ADT: 73

CHILLICOTHE RD

Good

Over: BNSF RR

000000000, Wapello, IA

Built 2011 Load: 32.4 t ADT: 1,300

CHILLICOTHE RD

Good

Over: DES MOINES RIVER

073152507, Wapello, IA

Built 2011 Load: 32.4 t ADT: 1,300

US 34 & 63

Good

Over: DES MOINES RIVER

0.2 MI. E OF W JCT. US 63, Wapello, IA

Built 2013 Load: 32.4 t ADT: 14,300

US 63 NB

Good

Over: JEFFERSON PARK DD

1.0 mi. S of W jct US 34, Wapello, IA

Built 2020 Load: 32.4 t ADT: 2,850

US 63 NB

Good

Over: COMSTOCK CREEK

0.6 MI. S OF SR T67, Wapello, IA

Built 1997 Load: 32.6 t ADT: 4,600

WALNUT ST

Good

Over: DRAINAGE

071122600, Wapello, IA

Built 1998 Load: 32.7 t ADT: 232

ALBIA RD

Good

Over: KETTLE CREEK

072142603, Wapello, IA

Built 1995 Load: 32.7 t ADT: 9,480
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.