Buchanan County, IA

281 public highway bridges

Buchanan County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Buchanan County, Iowa contains 281 public highway bridges. Roughly 40.2% are rated “Good,” 48.4% “Fair,” and 5.7% “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.

281
Total Bridges
40.2%
Good
48.4%
Fair
5.7%
Poor Condition

Condition Distribution

Good
40.2% (113)
Fair
48.4% (136)
Poor
5.7% (16)

All Bridges (281)

105TH ST

Good

Over: OTTER CREEK

090090407, Buchanan, IA

Built 2000 Load: 48.2 t ADT: 26

FM THOMAS AVE

Good

Over: DRY CREEK

087073106, Buchanan, IA

Built 1989 Load: 50.0 t ADT: 59

LOCAL UNION AVE

Good

Over: DRY CREEK

087073204, Buchanan, IA

Built 1997 Load: 50.0 t ADT: 98

FM

Good

Over: W BR BUFFALO CREEK

090080506, Buchanan, IA

Built 2004 Load: 50.0 t ADT: 334

FM

Good

Over: W BR BUFFALO CR

090081601, Buchanan, IA

Built 2003 Load: 50.0 t ADT: 373

LOC 150TH ST

Good

Over: HUNTER CR

090093103, Buchanan, IA

Built 2006 Load: 50.0 t ADT: 135

IA 187

Good

Over: PRAIRIE CREEK

1.6 MI. N OF US #20, Buchanan, IA

Built 1989 Load: 50.7 t ADT: 1,960

WASHINGTON AVE

Good

Over: S FORK MAQUOKETA RIVER

090071404, Buchanan, IA

Built 2005 Load: 52.9 t ADT: 88

LOCAL

Good

Over: S FORK MAQUOKETA RIVER

090072303, Buchanan, IA

Built 1997 Load: 52.9 t ADT: 49

FM

Good

Over: BUFFALO CREEK

090081103, Buchanan, IA

Built 2004 Load: 52.9 t ADT: 432

FM

Good

Over: STREAM

090100702, Buchanan, IA

Built 1999 Load: 52.9 t ADT: 34

FM 290 ST.

Good

Over: BEAR CREEK

087090901, Buchanan, IA

Built 2004 Load: 56.4 t ADT: 344

FM

Good

Over: S FK MAQUOKETA RIVER

090070903, Buchanan, IA

Built 1990 Load: 58.1 t ADT: 44

VICTOR AVE

Good

Over: S FORK MAQUOKETA RIVER

9007100059, Buchanan, IA

Built 2016 Load: 80.7 t ADT: 41

130TH ST

Good

Over: HUNTER CREEK

9009198800, Buchanan, IA

Built 2016 Load: 80.7 t ADT: 15

LOCAL 305TH ST.

Poor

Over: LIME CR

087101303, Buchanan, IA

Built 1910 ADT: 16

LOCAL 325TH ST

Poor

Over: MUD CR

087102903, Buchanan, IA

Built 1953 ADT: 30

LOCAL

Poor

Over: MALONE CR

089092405, Buchanan, IA

Built 1925 Load: 7.1 t ADT: 20

LOC 150TH ST

Poor

Over: OTTER CR

090093201, Buchanan, IA

Built 1953 Load: 8.6 t ADT: 130

PARRISH AVE

Poor

Over: PINE CR

088082804, Buchanan, IA

Built 1960 Load: 16.0 t ADT: 82

PINE CREEK AVE

Poor

Over: SMALL STREAM

089081502, Buchanan, IA

Built 2012 Load: 17.8 t ADT: 30

LOCAL

Poor

Over: SMALL STREAM

089082804, Buchanan, IA

Built 1951 Load: 19.0 t ADT: 15

LOCAL 260TH ST

Poor

Over: LIME CR

088102601, Buchanan, IA

Built 1986 Load: 22.4 t ADT: 41

FM

Poor

Over: WAPSIPINICON RIVER

089100802, Buchanan, IA

Built 1962 Load: 22.7 t ADT: 1,390

FM

Poor

Over: SMALL STREAM

089102201, Buchanan, IA

Built 1957 Load: 25.1 t ADT: 79

LOC FINLEY AVE

Poor

Over: LIME CR

087102710, Buchanan, IA

Built 1925 Load: 26.6 t ADT: 11

RACINE AVE

Poor

Over: DRAINAGE DITCH

088082304, Buchanan, IA

Built 1953 Load: 32.4 t ADT: 2,671

FM

Poor

Over: SMALL STREAM

088082109, Buchanan, IA

Built 1952 Load: 33.0 t ADT: 776

LOC TAYLOR AVE

Poor

Over: BUFFALO CR

090072902, Buchanan, IA

Built 1951 Load: 33.2 t ADT: 35

FREEMAN AVE

Poor

Over: SMALL STREAM

088102602, Buchanan, IA

Built 1950 Load: 33.7 t ADT: 21

LOCAL

Poor

Over: SMALL STREAM

089090402, Buchanan, IA

Built 1951 Load: 36.3 t ADT: 30

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

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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.