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)

140TH ST

Good

Over: KEIGLEY BRANCH

085242701, Story, IA

Built 1977 Load: 20.9 t ADT: 34

13TH ST

Good

Over: IOWAY CREEK (13TH)

City of Ames, Story, IA

Built 1974 Load: 24.1 t ADT: 9,563

R38/S DAKOTA AV

Good

Over: WORRELL CREEK

083241714, Story, IA

Built 2010 Load: 25.3 t ADT: 4,647

US 65

Good

Over: STREAM

2.4 MILES N OF JCT SR E18, Story, IA

Built 1990 Load: 27.5 t ADT: 1,440

BEACH ROAD

Good

Over: COLLEGE CREEK

0.1 mi. N of Lincolnway, Story, IA

Built 1973 Load: 29.0 t ADT: 4,878

US 65

Good

Over: DRAINAGE DITCH

2.9 MILES N OF JCT US 30, Story, IA

Built 1987 Load: 30.1 t ADT: 2,110

US 69

Good

Over: IOWAY CREEK

0.6 mi. N of Jct. US 30, Story, IA

Built 1924 Load: 30.3 t ADT: 24,600

595TH AVE

Good

Over: SKUNK RIVER

082232203, Story, IA

Built 2002 Load: 31.1 t ADT: 290

I 35 NB

Good

Over: SOUTH SKUNK RIVER

2.6 MILES S OF JCT US 30, Story, IA

Built 2018 Load: 32.4 t ADT: 23,300

I 35 SB

Good

Over: SOUTH SKUNK RIVER

2.6 MI. S OF Jct. U.S. 30, Story, IA

Built 2017 Load: 32.4 t ADT: 23,300

I35 NB TO US 30 EB

Good

Over: DRAINAGE DITCH

AT JCT. US 30, Story, IA

Built 2017 Load: 32.4 t ADT: 1,420

290TH ST

Good

Over: DRAINAGE DITCH

0.4 Mi E of US Hwy 69, Story, IA

Built 2019 Load: 32.4 t ADT: 120

US 30

Good

Over: DYE CREEK

2.1 MILES W OF JCT US 65, Story, IA

Built 1963 Load: 32.7 t ADT: 9,400

663RD AVE

Good

Over: SMALL STREAM

082222608, Story, IA

Built 2011 Load: 32.7 t ADT: 71

IA 210

Good

Over: ROCK CREEK

1.2 MILE WEST OF SR S28, Story, IA

Built 1974 Load: 32.7 t ADT: 1,400

R70/580TH AVE

Good

Over: BALLARD CREEK

082231604, Story, IA

Built 1989 Load: 32.7 t ADT: 818

210TH ST

Good

Over: DYE CREEK

0.15 mi E. of US Hwy 65, Story, IA

Built 2019 Load: 32.7 t ADT: 26

590TH AVE

Good

Over: OVRFLW OF MILFORD 13

0.33 Mi. S of NW Co., Story, IA

Built 2017 Load: 33.7 t ADT: 45

E29/190TH ST

Good

Over: WEST BR INDIAN CREEK

084232301, Story, IA

Built 2005 Load: 33.7 t ADT: 1,217

690TH AVE

Good

Over: MIDDLE MINERVA CREEK

0.3 Mi S E18, Story, IA

Built 2020 Load: 33.7 t ADT: 11

550TH AVE

Good

Over: HAMILTON-STORY 1 OPEN DD

1.5 miles S of E18, Story, IA

Built 2015 Load: 33.7 t ADT: 80

I 35

Good

Over: SOUTH SKUNK RVR OVERFLOW

1.9 mi. S of US 30, Story, IA

Built 2017 Load: 33.7 t ADT: 46,600

E63 305TH ST

Good

Over: CALAMUS CREEK

0.3 Mi E S14, Story, IA

Built 2016 Load: 34.0 t ADT: 90

N DAKOTA AVE

Good

Over: ONION CREEK

084243204, Story, IA

Built 2014 Load: 34.7 t ADT: 1,197

730TH AVE

Good

Over: MIDDLE MINERVA CREEK

085212502, Story, IA

Built 1983 Load: 34.9 t ADT: 26

US 65

Good

Over: DYE CREEK

1.8 MI. N OF US 30, Story, IA

Built 1979 Load: 35.3 t ADT: 2,110

210TH ST

Good

Over: WEST BR INDIAN CREEK

084233601, Story, IA

Built 1998 Load: 35.4 t ADT: 90

330TH ST

Good

Over: MUD CREEK

on 330th st ov Wolf Creek, Story, IA

Built 2021 Load: 35.6 t ADT: 15

190TH ST/E29

Good

Over: EAST BR INDIAN CREEK

084222401, Story, IA

Built 1963 Load: 35.6 t ADT: 669

248TH ST

Good

Over: DYE CREEK

083221408, Story, IA

Built 1980 Load: 35.7 t ADT: 71

US 30 WB

Good

Over: EAST INDIAN CREEK

3.4 MILES WEST OF JCT. 65, Story, IA

Built 1997 Load: 36.3 t ADT: 4,750

200TH ST

Good

Over: EAST BR INDIAN CREEK

084222603, Story, IA

Built 2000 Load: 36.4 t ADT: 40

564TH AVE

Good

Over: WALNUT CREEK

082230606, Story, IA

Built 1995 Load: 36.5 t ADT: 71

DAYTON AVE

Good

Over: UPRR

A88500545, Story, IA

Built 2002 Load: 36.6 t ADT: 10,233

R70/580TH AVE

Good

Over: UNION 118 WIRE LK OUTLT

082231604, Story, IA

Built 1989 Load: 36.7 t ADT: 818

282ND ST

Good

Over: WALNUT CREEK

082240104, Story, IA

Built 2002 Load: 37.2 t ADT: 80

IA 210

Good

Over: BRANCH WOLF CREEK

0.6 MILES WEST OF US 65, Story, IA

Built 1993 Load: 37.5 t ADT: 760

R70/580TH AVE

Good

Over: DRAINAGE DITCH

082230402, Story, IA

Built 1989 Load: 37.5 t ADT: 818

580TH AVE

Good

Over: DRAINAGE DITCH

082230402, Story, IA

Built 1989 Load: 37.5 t ADT: 818

IA 210

Good

Over: OVER UP RR

2.5 MILES E OF JCT I-35, Story, IA

Built 1939 Load: 37.6 t ADT: 1,920

SOUTH S AVE

Good

Over: WEST BR INDIAN CREEK

083221901, Story, IA

Built 2004 Load: 38.5 t ADT: 219

660TH AVE

Good

Over: DD 81 RICHLAND

0.23 Mi S of 190th St/E29, Story, IA

Built 2016 Load: 38.9 t ADT: 45

660TH AVE

Good

Over: ROCK CREEK

0.4 Mi N of IA 210, Story, IA

Built 2016 Load: 40.5 t ADT: 100

E57 260TH ST

Good

Over: GRANT #5 OPEN DITCH

0.4 Mi E 610th Ave, Story, IA

Built 2016 Load: 40.5 t ADT: 120

R77/600TH AVE

Good

Over: BEAR CREEK

085231104, Story, IA

Built 2003 Load: 40.6 t ADT: 948

SAND HILL TRAIL

Good

Over: WILCOX CREEK

S of INT w/ 250th St, Story, IA

Built 2018 Load: 40.8 t ADT: 120

730TH AVE

Good

Over: MINERVA CREEK

0.3 Mi S Co Line, Story, IA

Built 2020 Load: 40.8 t ADT: 30

100TH ST

Good

Over: MINERVA CREEK

085 21 02 01, Story, IA

Built 2012 Load: 40.8 t ADT: 20

E18 130TH ST

Good

Over: EAST INDIAN CREEK

E18 ov East Indian Creek, Story, IA

Built 2021 Load: 40.8 t ADT: 957

180TH ST

Good

Over: IOWAY CREEK

084241801, Story, IA

Built 1995 Load: 41.1 t ADT: 60

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

Related

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