Story County, IA

262 public highway bridges

Story County Bridge Snapshot

Story County, Iowa contains 262 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.8% are rated “Good,” 45.8% “Fair,” 14.5% “Poor,” and 14.5% 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.

262
Total Bridges
29.8%
Good
14.5%
Poor
14.5%
Structurally Deficient

Condition Distribution

Good
29.8% (78)
Fair
45.8% (120)
Poor
14.5% (38)
SD
14.5% (38)

All Bridges (262)

580TH AVE

Good

Over: SMALL STREAM

083233302, Story, IA

Built 1987 Load: 41.1 t ADT: 818

S GRAND AVE

Good

Over: OVERFLOW CHANNEL

0.4 Mi N of S 16th Street, Story, IA

Built 2021 Load: 41.5 t ADT: 4,085

E 18 (130TH ST)

Good

Over: HAMILTON-STORY 1 OPEN DD

085 24 22 01, Story, IA

Built 2012 Load: 41.6 t ADT: 1,427

120TH ST

Good

Over: HARDIN-STORY DD 1

.46 Mi E of NW Cor., Story, IA

Built 2018 Load: 41.7 t ADT: 11

280TH ST

Good

Over: WEST BR INDIAN CREEK

0.4 miles E of S14, Story, IA

Built 2015 Load: 42.3 t ADT: 131

E23 170TH ST

Good

Over: KEIGLEY BRANCH

084230701, Story, IA

Built 2013 Load: 42.3 t ADT: 120

170TH ST

Good

Over: EAST BR INDIAN CREEK

084221101, Story, IA

Built 1977 Load: 42.4 t ADT: 30

S GRAND AVE

Good

Over: IOWAY CREEK

0.1 Mi S of S 5th Street, Story, IA

Built 2021 Load: 42.8 t ADT: 4,085

190TH ST

Good

Over: DD 70

.25 Mi S of NW Cor., Story, IA

Built 2017 Load: 43.4 t ADT: 578

295TH ST

Good

Over: EAST BR INDIAN CREEK

082220903, Story, IA

Built 2014 Load: 45.2 t ADT: 131

250TH ST

Good

Over: EAST INDIAN CREEK

W of INT w/ 670th Ave, Story, IA

Built 2015 Load: 45.2 t ADT: 80

LINCOLN HWY

Good

Over: W BR INDIAN CREEK

000000000, Story, IA

Built 2000 Load: 45.3 t ADT: 6,217

280TH ST

Good

Over: MARSHALL-STORY DD#2

0.3 Mi W 730th Ave, Story, IA

Built 2018 Load: 45.7 t ADT: 20

US 65

Good

Over: MINERVA CREEK

0.4 MILES SOUTH OF SR E18, Story, IA

Built 2001 Load: 47.2 t ADT: 1,930

SE 16TH ST

Good

Over: SKUNK RIVER

A11700795, Story, IA

Built 2007 Load: 47.3 t ADT: 4,878

R 63 (180TH ST)

Good

Over: SKUNK RIVER

084 24 12 07, Story, IA

Built 2011 Load: 48.9 t ADT: 219

300TH ST

Good

Over: SMALL STREAM

0.9 Mi W of 560th, Story, IA

Built 2019 Load: 49.2 t ADT: 100

113TH ST

Good

Over: HARDIN-STORY DD 1

0.5 Mi E 710 Ave, Story, IA

Built 2018 Load: 49.2 t ADT: 15

305TH ST

Good

Over: INDIAN CREEK

082221605, Story, IA

Built 2005 Load: 49.9 t ADT: 80

560TH AVE

Good

Over: SMALL STREAM

082231804, Story, IA

Built 1994 Load: 50.0 t ADT: 259

570TH AVE

Good

Over: BALLARD CREEK

570th Ave ov Ballard Cr, Story, IA

Built 2020 Load: 53.8 t ADT: 110

E18/130TH ST

Good

Over: SKUNK RIVER

085231901, Story, IA

Built 2000 Load: 58.1 t ADT: 4,209

I-35

Good

Over: DRAINAGE DITCH

1.2 MILES N OF JCT SR E15, Story, IA

Built 1967 Load: 62.2 t ADT: 27,900

E 57 265TH ST

Good

Over: SKUNK RIVER

083233006, Story, IA

Built 2005 Load: 78.0 t ADT: 50

675TH AVE

Poor

Over: ROCK CREEK

082221304, Story, IA

Built 1911 ADT: 20

325TH ST

Poor

Over: SMALL STREAM

082222605, Story, IA

Built 1905 ADT: 34

597TH AVE

Poor

Over: SMALL STREAM

082232206, Story, IA

Built 1974 ADT: 30

632ND AVE

Poor

Over: WEST BR INDIAN CREEK

082220806, Story, IA

Built 1938 Load: 3.2 t ADT: 60

100TH ST

Poor

Over: KEIGLEY BRANCH

085240501, Story, IA

Built 1900 Load: 3.6 t ADT: 15

720TH AVE

Poor

Over: HARDIN-STORY DD 1

085211104, Story, IA

Built 1900 Load: 4.5 t ADT: 15

220TH ST

Poor

Over: EAST BR INDIAN CREEK

083220201, Story, IA

Built 1900 Load: 8.5 t ADT: 34

580TH AVE

Poor

Over: LONG DICK CREEK

085231602, Story, IA

Built 1964 Load: 9.1 t ADT: 50

270TH ST

Poor

Over: DRAINAGE DITCH 2

083213501, Story, IA

Built 1951 Load: 10.0 t ADT: 20

632ND AVE

Poor

Over: STREAM

082220806, Story, IA

Built 1973 Load: 11.2 t ADT: 60

280TH ST

Poor

Over: SKUNK RIVER

082230501, Story, IA

Built 1929 Load: 12.2 t ADT: 60

530TH AVE

Poor

Over: BALLARD CREEK

082241502, Story, IA

Built 1953 Load: 13.6 t ADT: 50

142ND ST

Poor

Over: BEAR CREEK

085232803, Story, IA

Built 1900 Load: 14.1 t ADT: 30

710TH AVE

Poor

Over: MIDDLE MINERVA CREEK

085212204, Story, IA

Built 1953 Load: 14.5 t ADT: 60

180TH ST

Poor

Over: WEST BR INDIAN CREEK

084231401, Story, IA

Built 1900 Load: 14.9 t ADT: 15

578TH AVE

Poor

Over: COON CREEK

082233204, Story, IA

Built 1952 Load: 15.4 t ADT: 50

535TH AVE

Poor

Over: BALLARD CREEK

082241504, Story, IA

Built 1920 Load: 15.4 t ADT: 60

248TH ST

Poor

Over: DYE CREEK

083221303, Story, IA

Built 1939 Load: 15.4 t ADT: 15

110TH ST

Poor

Over: EAST BR INDIAN CREEK

085220701, Story, IA

Built 1968 Load: 17.6 t ADT: 30

280TH ST

Poor

Over: GRANT 5 OPEN DITCH EXT

082220601, Story, IA

Built 1916 Load: 18.1 t ADT: 131

120TH ST

Poor

Over: EAST BR INDIAN CREEKH

085221801, Story, IA

Built 1919 Load: 18.1 t ADT: 15

150TH ST

Poor

Over: EAST BR INDIAN CREEK

085223401, Story, IA

Built 1950 Load: 18.1 t ADT: 30

560TH AVE

Poor

Over: HAM-STORY 1 OPEN DD

085233102, Story, IA

Built 1924 Load: 18.1 t ADT: 34

650TH AVE

Poor

Over: EAST BR INDIAN CREEK

085222702, Story, IA

Built 1922 Load: 19.0 t ADT: 60

140TH ST

Poor

Over: EAST BR INDIAN CREEK

085222901, Story, IA

Built 1924 Load: 19.0 t ADT: 5

520TH AVE

Poor

Over: KEIGLEY BRANCH

085240902, Story, IA

Built 1949 Load: 19.0 t ADT: 34

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