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)

RINGOLD AVE

Good

Over: DRAINAGE

.25 mi. north of 335th st, Buchanan, IA

Built 2015 Load: 32.4 t ADT: 73

270TH ST

Good

Over: SMALL STREAM

3540008807, Buchanan, IA

Built 2021 Load: 32.4 t ADT: 15

LOCAL 280TH ST.

Good

Over: SMALL STREAM

000087090601, Buchanan, IA

Built 2010 Load: 32.7 t ADT: 16

305TH ST

Good

Over: BEAR CREEK

S17 T87N R09W, Buchanan, IA

Built 2017 Load: 32.7 t ADT: 26

240TH ST

Good

Over: SMALL STREAM

8807152100, Buchanan, IA

Built 2016 Load: 32.7 t ADT: 29

FM YORK AVE

Good

Over: SMALL STREAM

088072502, Buchanan, IA

Built 2008 Load: 32.7 t ADT: 69

252ND ST

Good

Over: BEAR CREEK

088092103, Buchanan, IA

Built 2000 Load: 32.7 t ADT: 73

200TH ST

Good

Over: SMALL STREAM

089102701, Buchanan, IA

Built 2015 Load: 32.7 t ADT: 15

FM 115TH ST

Good

Over: SMALL STREAM

090070803, Buchanan, IA

Built 2005 Load: 32.7 t ADT: 49

POSTEL AVENUE

Good

Over: CREEK

090082204, Buchanan, IA

Built 2005 Load: 32.7 t ADT: 10

FM GABRIAL AV

Good

Over: LIME CREEK

088103602, Buchanan, IA

Built 1976 Load: 32.8 t ADT: 59

FM

Good

Over: WAPSIPINICON RIVER

089101309, Buchanan, IA

Built 1999 Load: 33.0 t ADT: 216

NOLAN AVE

Good

Over: WAPSIPINICON RIVER

088083204, Buchanan, IA

Built 1996 Load: 33.0 t ADT: 135

COOTS BLVD

Good

Over: SMALL CREEK

088083103, Buchanan, IA

Built 2015 Load: 33.7 t ADT: 79

NB I-380

Good

Over: BEAR CREEK

1.1 MI. S OF JCT. SR D48, Buchanan, IA

Built 1984 Load: 34.1 t ADT: 8,950

LOCAL

Good

Over: BUFFALO CREEK

087071202, Buchanan, IA

Built 2005 Load: 34.3 t ADT: 30

V65

Good

Over: SMALL STREAM

088100608, Buchanan, IA

Built 2014 Load: 34.7 t ADT: 2,917

QUONSET AVE

Good

Over: DRAINAGE

.5 mi. north of 325th st., Buchanan, IA

Built 2015 Load: 35.0 t ADT: 51

FM

Good

Over: BEAR CREEK

088091608, Buchanan, IA

Built 2006 Load: 36.3 t ADT: 177

310TH ST

Good

Over: SMALL STREAM

087082001, Buchanan, IA

Built 2019 Load: 36.6 t ADT: 44

FM

Good

Over: BUFFALO CREEK

087070205, Buchanan, IA

Built 2003 Load: 39.9 t ADT: 196

280TH ST

Good

Over: SMALL STREAM

087090201, Buchanan, IA

Built 2020 Load: 39.9 t ADT: 20

W35 QUASQUETON AVE

Good

Over: SMALL STREAM

087081502, Buchanan, IA

Built 2019 Load: 40.0 t ADT: 1,159

LOCAL 275TH ST

Good

Over: SPRING CR

088103105, Buchanan, IA

Built 2010 Load: 40.0 t ADT: 25

FM

Good

Over: LITTLE WAPSIPINICON

090101705, Buchanan, IA

Built 1996 Load: 40.0 t ADT: 1,650

W45 SLATER AVE

Good

Over: BUFFALO CREEK

089082511, Buchanan, IA

Built 2002 Load: 40.3 t ADT: 982

185TH ST

Good

Over: SMALL STREAM

089091703, Buchanan, IA

Built 2018 Load: 40.5 t ADT: 62

1ST ST EAST

Good

Over: MELONE CREEK

T89N-R9W-S35-N0.0-E14.5, Buchanan, IA

Built 2019 Load: 40.8 t ADT: 6,094

300TH ST

Good

Over: DRY CREEK

087071501, Buchanan, IA

Built 2014 Load: 40.8 t ADT: 41

235TH ST

Good

Over: SMALL STREAM

108808, Buchanan, IA

Built 2016 Load: 40.8 t ADT: 88

US 20

Good

Over: DRAINAGE DITCH

0.4 mi. W of jct. SR V65, Buchanan, IA

Built 1980 Load: 41.1 t ADT: 10,700

SB I-380

Good

Over: BEAR CREEK

1.2 MI. S OF JCT. SR D48, Buchanan, IA

Built 1984 Load: 41.2 t ADT: 8,950

D16 OTTERVILLE

Good

Over: SMALL STREAM

089092801, Buchanan, IA

Built 2019 Load: 41.7 t ADT: 805

YORK AVE

Good

Over: SMALL STREAM

S13 T88N R07W, Buchanan, IA

Built 2017 Load: 41.8 t ADT: 69

V62 BAXTER AVE

Good

Over: SMALL STREAM

089100802, Buchanan, IA

Built 2018 Load: 41.8 t ADT: 1,365

LOC GRANT AVE

Good

Over: SMALL STREAM

090093004, Buchanan, IA

Built 2005 Load: 42.1 t ADT: 91

US 20

Good

Over: DRAINAGE DITCH

4.6 mi. W of W jct. IA150, Buchanan, IA

Built 1980 Load: 42.4 t ADT: 10,100

FM 290TH ST

Good

Over: LIME CREEK

087101201, Buchanan, IA

Built 2004 Load: 42.8 t ADT: 344

W35 QUASQUETON AVE

Good

Over: SMALL CREEK

087081502, Buchanan, IA

Built 2019 Load: 43.3 t ADT: 1,159

120TH ST

Good

Over: HUNTER CREEK

090091803, Buchanan, IA

Built 2000 Load: 44.7 t ADT: 1,100

OVERLAND AVE

Good

Over: SAND CREEK

087082102, Buchanan, IA

Built 1995 Load: 45.4 t ADT: 20

FM 250TH ST

Good

Over: LIME CREEK

088102301, Buchanan, IA

Built 1989 Load: 45.4 t ADT: 69

LOCAL

Good

Over: SMALL STREAM

089100703, Buchanan, IA

Built 1995 Load: 45.4 t ADT: 33

QUONSET AVE

Good

Over: BUFFALO CREEK

090081404, Buchanan, IA

Built 2000 Load: 45.4 t ADT: 29

FM 155TH ST.

Good

Over: SMALL STREAM

090083203, Buchanan, IA

Built 2004 Load: 45.4 t ADT: 344

FM

Good

Over: SMALL STREAM

089072201, Buchanan, IA

Built 2007 Load: 45.7 t ADT: 59

LOC QUINN AVE

Good

Over: BUFFALO CR EAST BRANCH

090080202, Buchanan, IA

Built 2010 Load: 46.0 t ADT: 16

WB US 20

Good

Over: PINE CREEK

1.6 mi. W of jct. SR W40, Buchanan, IA

Built 1978 Load: 47.6 t ADT: 4,150

FM 310TH ST.

Good

Over: SAND CREEK

087082101, Buchanan, IA

Built 1995 Load: 48.2 t ADT: 35

FM

Good

Over: PRARIE CREEK

089072201, Buchanan, IA

Built 2007 Load: 48.2 t ADT: 59

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.