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)

IA 187

Unknown

Over: US 20

AT JCT. OF US 20, Buchanan, IA

Built 1970 ADT: 5,700

YORK AVE

Unknown

Over: US 20

1.5 MI E OF JCT. IA 187, Buchanan, IA

Built 1970 ADT: 6,500

FM V-71

Unknown

Over: I 380

2.0 mi. N of S.R. D48, Buchanan, IA

Built 1983 ADT: 17,300

EB US 20

Unknown

Over: IA 150

AT JCT.150, Buchanan, IA

Built 1978 ADT: 3,450

WB US 20

Unknown

Over: IA 150

AT JCT. 150, Buchanan, IA

Built 1978 ADT: 3,450

W 35

Unknown

Over: US 20

2.5 MI. E OF JCT. 150, Buchanan, IA

Built 1978 ADT: 8,400

SR W-40

Unknown

Over: US 20

At Jct. SR W40, Buchanan, IA

Built 1978 ADT: 5,600

FM W-45

Unknown

Over: US 20

3.4 mi. W of Jct. IA 187, Buchanan, IA

Built 1978 ADT: 7,000

FM V-65

Unknown

Over: US 20

At Jct. US 20 & SR V65, Buchanan, IA

Built 1980 ADT: 9,100

V71

Unknown

Over: US 20

6.0 MI. W OF JCT. 150, Buchanan, IA

Built 1980 ADT: 10,100

HENLEY AVE

Unknown

Over: US 20

2.5 MI. W OF JCT. IA 150, Buchanan, IA

Built 1980 ADT: 10,100

IOWA AVE (MHI)

Unknown

Over: US 20

1.5 MI. W OF JCT. IA 150, Buchanan, IA

Built 1980 ADT: 8,700

NB I-380

Unknown

Over: SR D48

At Jct. of SR D48, Buchanan, IA

Built 1984 ADT: 575

I 380 SB

Unknown

Over: D48

At jct. SR D48, Buchanan, IA

Built 1984 ADT: 575

FM W-17

Unknown

Over: I-380

0.9 mi. N of Jct. SR D48, Buchanan, IA

Built 1984 ADT: 17,300

FM V-65

Unknown

Over: I-380

At Jct. I-380 & S.R. V65, Buchanan, IA

Built 1984 ADT: 16,400

LOC 100TH ST

Fair

Over: BUFFALO CR

090080301, Buchanan, IA

Built 1940 Load: 4.5 t ADT: 40

LOCAL DUGAN AVE

Fair

Over: LIME CR

087103404, Buchanan, IA

Built 1952 Load: 10.0 t ADT: 196

FM

Fair

Over: PINE CREEK

089082907, Buchanan, IA

Built 1960 Load: 10.4 t ADT: 34

FM

Fair

Over: LIME CREEK

087102603, Buchanan, IA

Built 1954 Load: 12.6 t ADT: 80

FM 140TH ST

Fair

Over: SMALL STREAM

090092701, Buchanan, IA

Built 1958 Load: 13.0 t ADT: 147

FM LAWRENCE AVE

Fair

Over: SMALL STREAM

090091302, Buchanan, IA

Built 1953 Load: 13.3 t ADT: 41

LOCAL

Fair

Over: PRAIRIE CR

089070402, Buchanan, IA

Built 1953 Load: 13.9 t ADT: 16

LOCAL

Fair

Over: PRAIRIE CR

089070902, Buchanan, IA

Built 1953 Load: 13.9 t ADT: 30

LOCALIOWA AVE

Fair

Over: BEAR CR

087092004, Buchanan, IA

Built 1953 Load: 14.2 t ADT: 35

LOCAL 310TH ST

Fair

Over: LIME CR

087102303, Buchanan, IA

Built 1957 Load: 14.2 t ADT: 59

FM 250TH ST

Fair

Over: SMALL STREAM

088072301, Buchanan, IA

Built 1957 Load: 15.3 t ADT: 100

FM STEWART AV

Fair

Over: SMITH CREEK

088073004, Buchanan, IA

Built 1958 Load: 15.3 t ADT: 39

FM 140TH ST

Fair

Over: SMALL STREAM

090092601, Buchanan, IA

Built 1958 Load: 15.3 t ADT: 80

LOCAL 335TH ST.

Fair

Over: SMALL STREAM

087083603, Buchanan, IA

Built 1998 Load: 16.2 t ADT: 78

FM 145TH ST

Fair

Over: LITTLE WAPSIPINICON

090102805, Buchanan, IA

Built 1965 Load: 16.2 t ADT: 137

VINCENT AVE

Fair

Over: DRY CREEK

087072704, Buchanan, IA

Built 1960 Load: 16.8 t ADT: 11

FM LAPORTE RD

Fair

Over: MUD CREEK

087101909, Buchanan, IA

Built 1967 Load: 16.9 t ADT: 314

1ST ST W

Fair

Over: WAPSIPINICON RIVER

T89N-R9W-S34-N0.0-E85.2, Buchanan, IA

Built 1917 Load: 17.0 t ADT: 10,258

165TH ST

Fair

Over: SMALL CREEK

10W89N036050, Buchanan, IA

Built 1900 Load: 17.0 t ADT: 104

320TH ST

Fair

Over: DRAINAGE

087093003, Buchanan, IA

Built 2005 Load: 17.3 t ADT: 30

LOCAL 260TH ST

Fair

Over: BUFFALO CREEK

088072701, Buchanan, IA

Built 1949 Load: 17.5 t ADT: 62

IA 187

Fair

Over: STREAM

0.2 mi. N of Jct. SR C57, Buchanan, IA

Built 1960 Load: 18.1 t ADT: 1,560

NOLAN AVE

Fair

Over: SAND CREEK

087082002, Buchanan, IA

Built 2012 Load: 18.4 t ADT: 30

CARTER AVE

Fair

Over: SMALL STREAM

087102904, Buchanan, IA

Built 1952 Load: 18.8 t ADT: 62

INDIANA AVE

Fair

Over: OTTER CR

090092804, Buchanan, IA

Built 2010 Load: 18.8 t ADT: 62

FM

Fair

Over: BUCK CREEK

090102903, Buchanan, IA

Built 1965 Load: 18.8 t ADT: 88

LOCAL 330TH ST

Fair

Over: WALTON CREEK

087073501, Buchanan, IA

Built 2006 Load: 19.0 t ADT: 41

FM

Fair

Over: BUFFALO CREEK

089081301, Buchanan, IA

Built 1962 Load: 19.4 t ADT: 88

LOC 110TH ST

Fair

Over: SMALL STREAM

090090701, Buchanan, IA

Built 1963 Load: 19.4 t ADT: 73

LOCAL

Fair

Over: SMALL STREAM

088072703, Buchanan, IA

Built 2005 Load: 19.5 t ADT: 39

LOCAL 250TH ST

Fair

Over: SMALL CREEK

088082103, Buchanan, IA

Built 1957 Load: 19.6 t ADT: 91

PINE CREEK AVE

Fair

Over: SMALL STREAM

088082108, Buchanan, IA

Built 1957 Load: 19.6 t ADT: 118

LOCAL 265TH ST

Fair

Over: SPRING CREEK

088102903, Buchanan, IA

Built 1959 Load: 19.6 t ADT: 20

LOC HARRISON AV

Fair

Over: SMALL STREAM

090090502, Buchanan, IA

Built 1959 Load: 19.6 t ADT: 73

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.