Dickinson County, IA

73 public highway bridges

Dickinson County Bridge Snapshot

Dickinson County, Iowa contains 73 public highway bridges in the FHWA National Bridge Inventory. Roughly 38.4% are rated “Good,” 42.5% “Fair,” 19.2% “Poor,” and 19.2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

73
Total Bridges
38.4%
Good
19.2%
Poor
19.2%
Structurally Deficient

Condition Distribution

Good
38.4% (28)
Fair
42.5% (31)
Poor
19.2% (14)
SD
19.2% (14)

All Bridges (73)

FM

Good

Over: MUDDY CREEK

098352001, Dickinson, IA

Built 2002 Load: 41.0 t ADT: 325

FM

Good

Over: LITTLE SIOUX RIVER

098373405, Dickinson, IA

Built 2003 Load: 41.0 t ADT: 315

A 18 140TH ST

Good

Over: LITTLE SIOUX RIVER

100343201, Dickinson, IA

Built 2022 Load: 41.5 t ADT: 81

LOCAL

Good

Over: LITTLE SIOUX RIVER

098372301, Dickinson, IA

Built 2004 Load: 41.7 t ADT: 61

110TH AVE

Good

Over: STONY CREEK

098380802, Dickinson, IA

Built 2022 Load: 43.7 t ADT: 35

LOCAL

Good

Over: LITTLE SIOUX RIVER

098370401, Dickinson, IA

Built 2010 Load: 44.4 t ADT: 72

FM

Good

Over: CREEK

100361408, Dickinson, IA

Built 2001 Load: 47.5 t ADT: 478

LOCAL

Good

Over: LITTLE SIOUX RIVER

100372101, Dickinson, IA

Built 1999 Load: 52.9 t ADT: 71

FM

Good

Over: LAKE CHANNEL

099362901, Dickinson, IA

Built 2006 Load: 55.1 t ADT: 4,040

LOCAL

Poor

Over: DUGOUT CREEK

099380701, Dickinson, IA

Built 1967 Load: 14.8 t ADT: 11

270TH ST

Poor

Over: CREEK

097350301, Dickinson, IA

Built 1926 Load: 17.3 t ADT: 41

IA 9

Poor

Over: W FORK LITTLE SIOUX RVR

4.9 mi. W of IA 86, Dickinson, IA

Built 1929 Load: 17.8 t ADT: 4,310

270TH ST

Poor

Over: DRAINAGE DITCH

097350201, Dickinson, IA

Built 1926 Load: 18.7 t ADT: 5

FM

Poor

Over: W BR LITTLE SIOUX

100381301, Dickinson, IA

Built 1977 Load: 30.0 t ADT: 61

FM

Poor

Over: DUGOUT CREEK

099381002, Dickinson, IA

Built 1970 Load: 30.4 t ADT: 843

FM

Poor

Over: LITTLE SIOUX

099372901, Dickinson, IA

Built 1969 Load: 33.2 t ADT: 319

FM

Poor

Over: LITTLE SIOUX RIVER

098371001, Dickinson, IA

Built 1979 Load: 34.1 t ADT: 1,076

LOCAL

Structurally Deficient

Over: STONY CREEK

098381602, Dickinson, IA

Built 1946 ADT: 11

LOCAL

Structurally Deficient

Over: LITTLE SIOUX

099372001, Dickinson, IA

Built 1920 ADT: 31

LOCAL

Structurally Deficient

Over: W BR LITTLE SIOUX RIVER

100381902, Dickinson, IA

Built 1910 Load: 13.6 t ADT: 35

FM

Structurally Deficient

Over: CREEK

099360203, Dickinson, IA

Built 1941 Load: 22.7 t ADT: 2,060

210TH ST

Structurally Deficient

Over: CREEK

098380601, Dickinson, IA

Built 1987 Load: 24.5 t ADT: 5

260TH ST

Structurally Deficient

Over: CREEK

098373301, Dickinson, IA

Built 1980 Load: 24.5 t ADT: 315

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial