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)

Sort:

330TH ST

Over: DRY CREEK

087073301, Buchanan, IA

Built 2007 Load: 19.8 t ADT: 62

DANIAL AVE

Over: SPRING CR

088102102, Buchanan, IA

Built 1956 Load: 19.8 t ADT: 11

LOCAL 240TH ST

Over: PINE CR

088081701, Buchanan, IA

Built 1961 Load: 20.0 t ADT: 16

LOCAL 265TH ST

Over: BEAR CR

088092703, Buchanan, IA

Built 1962 Load: 20.0 t ADT: 196

LOC 110TH ST

Over: HUNTER CR

090090701, Buchanan, IA

Built 1963 Load: 20.0 t ADT: 73

LOC CENTRAL AVE

Over: SMALL STREAM

090101604, Buchanan, IA

Built 1967 Load: 20.0 t ADT: 91

LOCAL 230TH ST

Over: PINE CR

088080901, Buchanan, IA

Built 2007 Load: 20.4 t ADT: 59

FM

Over: MALONE CREEK

089092406, Buchanan, IA

Built 2003 Load: 20.4 t ADT: 88

FM

Over: STREAM

090091003, Buchanan, IA

Built 1972 Load: 20.4 t ADT: 658

LOC 100TH ST

Over: STREAM

090070501, Buchanan, IA

Built 1940 Load: 21.1 t ADT: 44

LOCAL RD

Over: BUFFALO CREEK

089073101, Buchanan, IA

Built 1980 Load: 22.4 t ADT: 123

FM

Over: HARTER CR

089092702, Buchanan, IA

Built 1963 Load: 22.4 t ADT: 1,169

FM

Over: OVFLW WAPSIPINICON RVR

089100909, Buchanan, IA

Built 1968 Load: 22.7 t ADT: 687

POSTEL AVE

Over: SMALL STREAM

8808220044, Buchanan, IA

Built 2011 Load: 23.7 t ADT: 69

FM

Over: STREAM

089102802, Buchanan, IA

Built 1951 Load: 24.3 t ADT: 147

LOCAL 240TH ST

Over: SMALL STREAM

088081401, Buchanan, IA

Built 1979 Load: 24.9 t ADT: 82

WB US 20

Over: WAPSIPINICON RIVER

1.5 MI. E OF JCT. IA #150, Buchanan, IA

Built 1978 Load: 24.9 t ADT: 4,150

US 20

Over: DRAINAGE DITCH

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

Built 1980 Load: 24.9 t ADT: 10,100

IOWA AVE

Over: SMALL STREAM

087092004, Buchanan, IA

Built 1957 Load: 25.1 t ADT: 35

LOC UNION AVE

Over: SMALL STREAM

090071602, Buchanan, IA

Built 1955 Load: 25.1 t ADT: 30

FM

Over: W BR BUFFALO CREEK

090082103, Buchanan, IA

Built 1957 Load: 25.1 t ADT: 118

FM

Over: BUFFALO CREEK

090082401, Buchanan, IA

Built 1955 Load: 25.1 t ADT: 167

LOC 110TH ST

Over: OTTER CR

090090901, Buchanan, IA

Built 1963 Load: 25.1 t ADT: 47

LOCAL 240TH ST

Over: BUFFALO CREEK

088071703, Buchanan, IA

Built 1986 Load: 25.1 t ADT: 73

330TH ST

Over: LIME CREEK

087102711, Buchanan, IA

Built 1951 Load: 25.4 t ADT: 992

280TH ST

Over: BUFFALO CREEK

087070201, Buchanan, IA

Built 2004 Load: 25.9 t ADT: 51

LOCAL

Over: LITTLE WAPSIPINICON RVR

089100406, Buchanan, IA

Built 1966 Load: 25.9 t ADT: 51

LOCAL

Over: SMALL STREAM

089092104, Buchanan, IA

Built 1969 Load: 26.6 t ADT: 73

FM

Over: HARTER CREEK

089092701, Buchanan, IA

Built 1964 Load: 26.6 t ADT: 825

FM 140TH ST

Over: HUNTER CREEK

090092901, Buchanan, IA

Built 1968 Load: 26.6 t ADT: 108

EB US 20

Over: WAPSIPINICON RIVER

1.5 MI. E OF JCT. IA #150, Buchanan, IA

Built 1978 Load: 26.6 t ADT: 4,150

FM

Over: WAPSIPINICON RIVER

089100907, Buchanan, IA

Built 1968 Load: 27.3 t ADT: 687

FM 150TH ST

Over: BUFFALO CREEK

090073101, Buchanan, IA

Built 1985 Load: 27.3 t ADT: 98

FM

Over: SMALL STREAM

089101007, Buchanan, IA

Built 1965 Load: 28.2 t ADT: 422

FM

Over: W BR BUFFALO CREEK

090081604, Buchanan, IA

Built 1974 Load: 28.6 t ADT: 344

IA 187

Over: LAMONT CREEK

0.2 mi. N of N Jct SR C64, Buchanan, IA

Built 1977 Load: 28.8 t ADT: 2,250

JACKSON AVE

Over: SMALL STREAM

088090904, Buchanan, IA

Built 1976 Load: 28.8 t ADT: 3,103

FM

Over: STREAM

089070702, Buchanan, IA

Built 1968 Load: 29.2 t ADT: 982

KEOKUK AVE

Over: MALONE CR

089091303, Buchanan, IA

Built 2004 Load: 29.2 t ADT: 49

IA 150

Over: STREAM

3.4 mi. S of SR C57, Buchanan, IA

Built 1984 Load: 29.2 t ADT: 3,890

LOCAL FROST AVE

Over: SMALL STREAM

087102304, Buchanan, IA

Built 1976 Load: 29.5 t ADT: 39

FM DENISON AVE

Over: SMALL CREEK

090101501, Buchanan, IA

Built 1998 Load: 29.5 t ADT: 1,650

LOCAL

Over: WEST BRANCH OF PINE CRK

089082003, Buchanan, IA

Built 1988 Load: 29.8 t ADT: 62

FM W45

Over: DRY CREEK

087073302, Buchanan, IA

Built 1974 Load: 30.0 t ADT: 717

FM

Over: W BR PINE CREEK

089080502, Buchanan, IA

Built 1977 Load: 30.0 t ADT: 344

FM

Over: W BR BUFFALO CREEK

090080807, Buchanan, IA

Built 1974 Load: 30.2 t ADT: 334

FM

Over: MALONE CREEK

089092503, Buchanan, IA

Built 1969 Load: 30.4 t ADT: 285

FM QUONSET AVE

Over: W BR BUFFALO CK

090083504, Buchanan, IA

Built 1979 Load: 30.4 t ADT: 98

FM 140TH ST

Over: OTTER CREEK

090092803, Buchanan, IA

Built 1968 Load: 30.4 t ADT: 118

FM 155TH ST

Over: PINE CREEK

090083105, Buchanan, IA

Built 1969 Load: 30.6 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

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Compiled by PlainBridges, Independent data publisher

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.