Winnebago County, IA

48 public highway bridges

Winnebago County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Winnebago County, Iowa contains 48 public highway bridges. Roughly 33.3% are rated “Good,” 33.3% “Fair,” and 33.3% “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.

48
Total Bridges
33.3%
Good
33.3%
Fair
33.3%
Poor Condition

Condition Distribution

Good
33.3% (16)
Fair
33.3% (16)
Poor
33.3% (16)

All Bridges (48)

LOCAL

Fair

Over: N FORK BUFFALO CREEK

098260202, Winnebago, IA

Built 2001 Load: 8.1 t ADT: 30

FM

Fair

Over: N FORK BUFFALO CREEK

098260701, Winnebago, IA

Built 2006 Load: 8.1 t ADT: 26

460TH ST

Fair

Over: DRAINAGE DITCH

099240201, Winnebago, IA

Built 2005 Load: 8.1 t ADT: 62

US 69

Fair

Over: PIKE RUN CREEK

0.5 mi N of N jct IA 9, Winnebago, IA

Built 1968 Load: 22.5 t ADT: 1,650

FM

Fair

Over: DRAINAGE DITCH

099251702, Winnebago, IA

Built 1955 Load: 25.8 t ADT: 90

FM

Fair

Over: WINNEBAGO RIVER

098242301, Winnebago, IA

Built 1974 Load: 30.2 t ADT: 330

FM

Fair

Over: WINNEBAGO RIVER

098240103, Winnebago, IA

Built 1968 Load: 30.8 t ADT: 649

FM

Fair

Over: BEAVER CREEK

099233508, Winnebago, IA

Built 1987 Load: 31.2 t ADT: 848

LOCAL

Fair

Over: BEAVER CREEK

098232601, Winnebago, IA

Built 1991 Load: 36.6 t ADT: 30

IA 9

Fair

Over: DRAINAGE DITCH

0.8 mi. E of E Jct SR R34, Winnebago, IA

Built 1975 Load: 39.2 t ADT: 2,320

FM

Fair

Over: PIKE RUN CREEK

099241502, Winnebago, IA

Built 1990 Load: 45.4 t ADT: 170

20TH AVE

Fair

Over: N FORK BUFFALO CREEK

098260406, Winnebago, IA

Built 1989 Load: 45.5 t ADT: 409

US 69

Fair

Over: WINNEBAGO RIVER

0.1 mi. S of S jct. IA 9, Winnebago, IA

Built 1988 Load: 46.3 t ADT: 5,400

10TH AVE

Fair

Over: N FORK BUFFALO CREEK

098260502, Winnebago, IA

Built 2001 Load: 48.2 t ADT: 279

FM

Fair

Over: WINNEBAGO RIVER

100232103, Winnebago, IA

Built 2002 Load: 50.0 t ADT: 270

US 69 & IA 9

Fair

Over: WINNEBAGO RIVER

2.2 mi. N of S.R. A44, Winnebago, IA

Built 1988 Load: 55.3 t ADT: 2,960

160TH AVE

Good

Over: PIKE RUN

099241402, Winnebago, IA

Built 2022 Load: 32.4 t ADT: 30

FM

Good

Over: TWISTER BRANCH

098242701, Winnebago, IA

Built 2011 Load: 32.7 t ADT: 45

FM

Good

Over: BUFFALO CREEK

098263601, Winnebago, IA

Built 2010 Load: 32.7 t ADT: 439

LOCAL

Good

Over: BLUE EARTH RIVER

099260702, Winnebago, IA

Built 2010 Load: 32.7 t ADT: 46

10TH AVE

Good

Over: BLUE EARTH RIVER

099260802, Winnebago, IA

Built 2011 Load: 32.7 t ADT: 120

A34 (420TH ST)

Good

Over: PIKE RUN CREEK

0.5 mi. E. of HWY 9, Winnebago, IA

Built 2014 Load: 35.6 t ADT: 100

LOCAL

Good

Over: N FORK BUFFALO CREEK

098261801, Winnebago, IA

Built 2011 Load: 35.7 t ADT: 71

200TH AVE

Good

Over: WINNEBAGO RIVER

100232804, Winnebago, IA

Built 2015 Load: 36.3 t ADT: 11

LOCAL

Good

Over: WINNEBAGO RIVER

099230501, Winnebago, IA

Built 2011 Load: 39.5 t ADT: 35

350TH ST

Good

Over: BUFFALO CREEK

098263401, Winnebago, IA

Built 2020 Load: 40.5 t ADT: 21

440TH ST

Good

Over: WINNEBAGO RIVER

099231701, Winnebago, IA

Built 2012 Load: 41.8 t ADT: 41

LOCAL

Good

Over: PIKE RUN

099252402, Winnebago, IA

Built 2005 Load: 48.0 t ADT: 26

30TH AVE

Good

Over: N FORK BUFFALO CREEK

098260302, Winnebago, IA

Built 2000 Load: 49.8 t ADT: 21

FM

Good

Over: WINNEBAGO RIVER

099242503, Winnebago, IA

Built 1989 Load: 55.9 t ADT: 90

LOCAL

Good

Over: WINNEBAGO RIVER

099243601, Winnebago, IA

Built 1993 Load: 55.9 t ADT: 30

140TH AVE

Good

Over: PIKE RUN

099241602, Winnebago, IA

Built 2019 Load: 90.1 t ADT: 26

LOCAL

Poor

Over: N FORK BUFFALO CREEK

099262501, Winnebago, IA

Built 1900 ADT: 5

LOCAL

Poor

Over: PIKE RUN

099241701, Winnebago, IA

Built 1976 Load: 3.4 t ADT: 11

FM

Poor

Over: DRAINAGE DITCH

099252902, Winnebago, IA

Built 1955 Load: 6.5 t ADT: 34

LOCAL

Poor

Over: DRAINAGE DITCH

099240301, Winnebago, IA

Built 1976 Load: 9.1 t ADT: 72

135TH AVE

Poor

Over: TWISTER BRANCH

089242901, Winnebago, IA

Built 1999 Load: 9.1 t ADT: 11

LOCAL

Poor

Over: PIKE RUN

099252401, Winnebago, IA

Built 1976 Load: 10.2 t ADT: 5

LOCAL

Poor

Over: DRAINAGE DITCH

100231602, Winnebago, IA

Built 1966 Load: 12.2 t ADT: 41

LOCAL

Poor

Over: DRAINAGE DITCH

099263402, Winnebago, IA

Built 1964 Load: 14.9 t ADT: 20

LOCAL

Poor

Over: N BUFFALO CREEK

100243102, Winnebago, IA

Built 1949 Load: 14.9 t ADT: 5

LOCAL

Poor

Over: BEAVER CREEK

098230101, Winnebago, IA

Built 1985 Load: 19.3 t ADT: 35

LOCAL

Poor

Over: BUFFALO CREEK

098252002, Winnebago, IA

Built 1975 Load: 21.0 t ADT: 26

LOCAL

Poor

Over: DRAINAGE DITCH

098240301, Winnebago, IA

Built 1928 Load: 21.9 t ADT: 82

LOCAL

Poor

Over: N BUFFALO CREEK

100253602, Winnebago, IA

Built 1949 Load: 24.1 t ADT: 11

LOCAL

Poor

Over: BEAVER CREEK

099233501, Winnebago, IA

Built 1976 Load: 24.7 t ADT: 41

LOCAL

Poor

Over: DRAINAGE DITCH

098250601, Winnebago, IA

Built 1950 Load: 25.8 t ADT: 35

LOCAL

Poor

Over: DRAINAGE DITCH

098260401, Winnebago, IA

Built 1985 Load: 29.3 t ADT: 26

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge 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.