Harrison County, IA

162 public highway bridges

Harrison County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Harrison County, Iowa contains 162 public highway bridges. Roughly 19.8% are rated “Good,” 54.3% “Fair,” and 25.3% “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.

162
Total Bridges
19.8%
Good
54.3%
Fair
25.3%
Poor Condition

Condition Distribution

Good
19.8% (32)
Fair
54.3% (88)
Poor
25.3% (41)

All Bridges (162)

US 30

Fair

Over: STREAM

3.6 miles east of SR F-32, Harrison, IA

Built 2012 Load: 32.4 t ADT: 3,090

F20L EASTON TRAIL

Fair

Over: WILLOW CREEK

080420607, Harrison, IA

Built 2020 Load: 32.4 t ADT: 437

L20 LOESS HILLS

Fair

Over: SMALL NATURAL STREAM

078440306, Harrison, IA

Built 1926 Load: 32.7 t ADT: 1,534

288TH STREET

Fair

Over: PATATO CREEK

078420409, Harrison, IA

Built 1995 Load: 32.7 t ADT: 15

330TH ST

Fair

Over: POTATO CREEK

078423003, Harrison, IA

Built 1980 Load: 32.7 t ADT: 29

FM & 296TH ST

Fair

Over: HARRIS GROVE CREEK

078431105, Harrison, IA

Built 1900 Load: 32.7 t ADT: 379

LOC MUNICE AVE

Fair

Over: SMALL CREEK

078442408, Harrison, IA

Built 1956 Load: 32.7 t ADT: 240

REDWOOD AVE

Fair

Over: SIX MILE CREEK

079421108, Harrison, IA

Built 1992 Load: 32.7 t ADT: 45

242 TRAIL

Fair

Over: HOG CREEK

079431405, Harrison, IA

Built 1900 Load: 32.7 t ADT: 71

260TH ST

Fair

Over: HOG CREEK

079432205, Harrison, IA

Built 1950 Load: 32.7 t ADT: 417

220TH ST

Fair

Over: SPOONER DITCH

079440501, Harrison, IA

Built 1970 Load: 32.7 t ADT: 11

235TH ST

Fair

Over: SPOONER DITCH

079440703, Harrison, IA

Built 1962 Load: 32.7 t ADT: 15

AUSTIN AVE

Fair

Over: OLD SOLDIER DITCH

079441802, Harrison, IA

Built 1984 Load: 32.7 t ADT: 558

LOC 180TH ST

Fair

Over: S PICAYUNE CREEK

000000000, Harrison, IA

Built 2009 Load: 32.7 t ADT: 29

FM & 194TH ST

Fair

Over: S PICAYUNE CREEK

080412005, Harrison, IA

Built 1979 Load: 32.7 t ADT: 518

210TH TRAIL

Fair

Over: SPOONER DITCH

080443104, Harrison, IA

Built 1959 Load: 32.7 t ADT: 29

FM & QUAY AVE

Fair

Over: SMALL STREAM

081423406, Harrison, IA

Built 1948 Load: 32.7 t ADT: 40

FM & RACINE TRL

Fair

Over: SMALL CREEK

081423603, Harrison, IA

Built 1947 Load: 32.7 t ADT: 71

FM 110TH ST

Fair

Over: STRAW CREEK

081431001, Harrison, IA

Built 1900 Load: 32.7 t ADT: 26

193RD LANE

Fair

Over: STEER CREEK

080442203, Harrison, IA

Built 1971 Load: 32.7 t ADT: 10

WALDORF AVENUE

Fair

Over: CREEK

078411604, Harrison, IA

Built 1950 Load: 32.7 t ADT: 60

KENDRICK AVE

Fair

Over: ALLEN CREEK

000000000, Harrison, IA

Built 2010 Load: 32.7 t ADT: 29

LOC SAWYER TR

Fair

Over: PICAYUNE CREEK

080410704, Harrison, IA

Built 1977 Load: 32.8 t ADT: 71

QUEBEC PLACE

Fair

Over: WILLOW RIVER

081420903, Harrison, IA

Built 1975 Load: 33.5 t ADT: 11

NB I-29

Fair

Over: OLD SOLDIER RIVER DITCH

4.0 mi. S of IA 127, Harrison, IA

Built 1967 Load: 33.7 t ADT: 7,600

IA 127 & 183

Fair

Over: STEER CREEK

0.5 mi. E of IA 183, Harrison, IA

Built 1968 Load: 34.0 t ADT: 920

US 30

Fair

Over: WILLOW CREEK

0.6 MI. E OF JCT. I-29, Harrison, IA

Built 1972 Load: 34.2 t ADT: 10,300

US 30

Fair

Over: POWLEY DRAIN DITCH

2.2 mi. E of SR F32, Harrison, IA

Built 1983 Load: 36.3 t ADT: 3,090

US 30

Fair

Over: MISSOURI RIVER

AT NEBRASKA STATE LINE, Harrison, IA

Built 1991 Load: 36.7 t ADT: 4,410

BUS BROWN DR

Fair

Over: UNNAMED CREEK

East of Lincolnway, Harrison, IA

Built 2015 Load: 37.3 t ADT: 1,225

SB I-29

Fair

Over: ALLEN CREEK

1.9 MI. N OF JCT. US 30, Harrison, IA

Built 1967 Load: 38.1 t ADT: 7,750

FM/AUSTIN AVE

Fair

Over: SOLDIER RIVER

080451206, Harrison, IA

Built 1957 Load: 38.3 t ADT: 488

235TH ST

Fair

Over: ALLEN CREEK

079441003, Harrison, IA

Built 2015 Load: 42.1 t ADT: 25

184TH LANE

Fair

Over: STEER CREEK

080441505, Harrison, IA

Built 1969 Load: 44.4 t ADT: 10

US 30

Fair

Over: SIX MILE CREEK

0.3 mi. E of IA 44, Harrison, IA

Built 1988 Load: 45.1 t ADT: 4,490

SB I-29

Fair

Over: BOYER RIVER

3.0 mi. S of Jct. US 30, Harrison, IA

Built 1958 Load: 47.3 t ADT: 10,050

FM 270TH ST

Fair

Over: WILLOW CREEK

079433101, Harrison, IA

Built 1990 Load: 52.7 t ADT: 379

LOC TRACEY AVE

Fair

Over: N PICAYUNE CREEK

081413408, Harrison, IA

Built 2003 Load: 55.3 t ADT: 29

IA 44

Fair

Over: SIX MILE CREEK

0.9 MI. E OF JCT. US 30, Harrison, IA

Built 1978 Load: 90.5 t ADT: 800

US 30

Good

Over: STREAM

1.5 MI. W OF IA 37, Harrison, IA

Built 1924 Load: 18.1 t ADT: 3,090

IA 183

Good

Over: DITCH

3.3 mi. S of SR F-20, Harrison, IA

Built 2002 Load: 26.1 t ADT: 870

FM-TOLEDO AVE

Good

Over: EAST PICAYUNE CREEK

080410304, Harrison, IA

Built 1977 Load: 30.4 t ADT: 60

FM/CANTON AVE

Good

Over: SOLDIER RIVER

080451402, Harrison, IA

Built 1974 Load: 30.4 t ADT: 29

SPENCER AVE

Good

Over: PIGEON CREEK

078421004, Harrison, IA

Built 2008 Load: 31.9 t ADT: 45

IA 183

Good

Over: COBB CREEK

0.5 MI. N SR F20, Harrison, IA

Built 2017 Load: 32.4 t ADT: 730

LOC TAMA TRAIL

Good

Over: S PICAYUNE CREEK

080412106, Harrison, IA

Built 1998 Load: 32.7 t ADT: 5

RACINE TRAIL

Good

Over: SMALL STREAM

000000000, Harrison, IA

Built 2009 Load: 32.7 t ADT: 139

296TH ST

Good

Over: POTATO CREEK

078420903, Harrison, IA

Built 2007 Load: 32.7 t ADT: 270

EASTON TRAIL

Good

Over: ELK CREEK

080430205, Harrison, IA

Built 2008 Load: 32.7 t ADT: 335

US 30

Good

Over: UPRR

0.8 mi. E of Jct I-29, Harrison, IA

Built 1998 Load: 32.7 t ADT: 10,300

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.