Howard County, IA

193 public highway bridges

Howard County Bridge Snapshot

Howard County, Iowa contains 193 public highway bridges in the FHWA National Bridge Inventory. Roughly 42.5% are rated “Good,” 33.7% “Fair,” 23.8% “Poor,” and 23.8% 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.

193

Total Bridges

42.5%

Good

23.8%

Poor

23.8%

Structurally Deficient

Condition Distribution

Good

42.5% (82)

Fair

33.7% (65)

Poor

23.8% (46)

SD

23.8% (46)

All Bridges (193)

Sort:

180TH ST

Over: BR LITTLE WAPSIPINICON

097140101, Howard, IA

Built 2003 Load: 32.7 t ADT: 51

FM

Over: SMALL STREAM

098110403, Howard, IA

Built 1995 Load: 32.7 t ADT: 79

FM 150TH ST

Over: TURKEY RIVER

098112401, Howard, IA

Built 2009 Load: 32.7 t ADT: 766

PINE AVE

Over: TURKEY RIVER

098120302, Howard, IA

Built 2002 Load: 32.7 t ADT: 51

ROBIN AVE

Over: TURKEY RIVER

098123604, Howard, IA

Built 2000 Load: 32.7 t ADT: 108

LOCAL FIR AVE

Over: DRAINAGE DITCH

098142402, Howard, IA

Built 2001 Load: 32.7 t ADT: 35

FM WILLOW AVE

Over: SILVVER CREEK

099111404, Howard, IA

Built 2002 Load: 32.7 t ADT: 1,218

LOC N BRANCH RD

Over: N BR TURKEY RIVER

099121404, Howard, IA

Built 1996 Load: 32.7 t ADT: 26

LILAC AVE

Over: BEAVER CREEK

099130102, Howard, IA

Built 2020 Load: 32.7 t ADT: 29

LOCAL 60TH ST

Over: BEAVER CREEK

099130501, Howard, IA

Built 2003 Load: 32.7 t ADT: 5

LOCAL FIR AVE

Over: BRANCH CRANE CREEK

099141202, Howard, IA

Built 1997 Load: 32.7 t ADT: 62

LOC UNITY AVE

Over: BR NICHOLS CR

100112102, Howard, IA

Built 2005 Load: 32.7 t ADT: 30

30TH ST

Over: NICHOLS CREEK

100112401, Howard, IA

Built 2020 Load: 32.7 t ADT: 62

30TH ST

Over: NICHOLS CREEK

100112401, Howard, IA

Built 2020 Load: 32.7 t ADT: 62

FM

Over: UPPER IOWA

100113303, Howard, IA

Built 2006 Load: 32.7 t ADT: 737

FM-QUAIL AVE

Over: UPPER IOWA

100121404, Howard, IA

Built 1998 Load: 32.7 t ADT: 98

LOCAL

Over: SMALL STREAM

100122105, Howard, IA

Built 1995 Load: 32.7 t ADT: 104

35TH ST

Over: UPPER IOWA RIVER

100122105, Howard, IA

Built 2013 Load: 32.7 t ADT: 104

10TH ST

Over: UNNAMED CREEK

100140903, Howard, IA

Built 1987 Load: 32.7 t ADT: 128

LOCAL RD

Over: SMALL

100110704, Howard, IA

Built 2003 Load: 32.7 t ADT: 5

LOCAL

Over: SMALL

098141603, Howard, IA

Built 2004 Load: 32.7 t ADT: 5

YANKEE AVE

Over: DITCH

100112502, Howard, IA

Built 2013 Load: 32.7 t ADT: 39

25TH ST

Over: DITCH

100991703, Howard, IA

Built 2013 Load: 32.7 t ADT: 35

YOUNG AVE

Over: BR UPPER IOWA

100112504, Howard, IA

Built 2017 Load: 32.7 t ADT: 26

KENT AVE

Over: BRANCH BEAVER CREEK

99130202, Howard, IA

Built 2023 Load: 32.7 t ADT: 10

LOC MILL RD

Over: UPPER IOWA RIVER

100122003, Howard, IA

Built 1992 Load: 33.6 t ADT: 73

LOC VALLEY AVE

Over: SILVER CR

099111502, Howard, IA

Built 2001 Load: 35.4 t ADT: 118

FM 125TH ST

Over: DRAINAGE DITCH

098110303, Howard, IA

Built 1973 Load: 35.9 t ADT: 128

FM-ROBIN AVE

Over: TURKEY RIVER

098120102, Howard, IA

Built 1994 Load: 37.2 t ADT: 422

FM 190TH ST

Over: LITTLE WAPSIPINICON

097141201, Howard, IA

Built 1995 Load: 38.5 t ADT: 638

FM-ROBIN AVE

Over: STREAM

097121202, Howard, IA

Built 2010 Load: 38.9 t ADT: 69

V46 (ROBIN AVE)

Over: TURKEY RIVER

097121302, Howard, IA

Built 2013 Load: 38.9 t ADT: 69

FM DOUGLAS AVE

Over: LITTLE WAPSIPINICON

098141004, Howard, IA

Built 2011 Load: 38.9 t ADT: 39

DOUGLAS AVE

Over: LITTLE WAPSIPINICON

098141504, Howard, IA

Built 2020 Load: 39.0 t ADT: 69

YANKEE AVE

Over: SILVER CREEK

099111202, Howard, IA

Built 2012 Load: 39.9 t ADT: 91

BELL AVE

Over: BR WAPSIPINICON RIV

097140502, Howard, IA

Built 2005 Load: 40.5 t ADT: 21

FM

Over: CRANE CREEK

099131702, Howard, IA

Built 1995 Load: 49.8 t ADT: 59

170TH ST

Over: WAPSIPINICON RIVER

098143101, Howard, IA

Built 1988 Load: 51.8 t ADT: 62

FM

Over: TURKEY RIVER

099113410, Howard, IA

Built 1995 Load: 51.9 t ADT: 265

ROBIN AVE

Over: DRAINAGE DITCH

099121202, Howard, IA

Built 2018 Load: 54.1 t ADT: 73

70TH ST

Over: DRAINAGE DITCH

099121103, Howard, IA

Built 2018 Load: 54.4 t ADT: 35

180TH ST

Over: LITTLE WAPSIPINICON RVR

097140101, Howard, IA

Built 2003 Load: 99.9 t ADT: 51

180TH ST

Over: DRAINAGE DITCH

097140301, Howard, IA

Built 2010 Load: 99.9 t ADT: 35

LOCAL BIRCH

Over: BR UPPER IA RIVER

100140804, Howard, IA

Built 2008 Load: 99.9 t ADT: 135

LOCAL ELM AVE

Over: BR STAFF CR

100142302, Howard, IA

Built 2005 Load: 99.9 t ADT: 73

LOCAL BIRCH AVE

Over: STAFF CR

100142904, Howard, IA

Built 2008 Load: 99.9 t ADT: 39

JADE AVE

Over: BR OF CRANE CREEK

099132702, Howard, IA

Built 2005 Load: 99.9 t ADT: 44

FM-175TH ST

Over: CRANE CREEK

098123103, Howard, IA

Built 1955 Load: 5.4 t ADT: 59

HOWARD AVE

Over: CRANE CREEK

098130504, Howard, IA

Built 1920 Load: 12.5 t ADT: 63

LOCAL 40TH ST

Over: BLANK CR

100132501, Howard, IA

Built 1953 Load: 13.8 t ADT: 51

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026