Jefferson County, IA

142 public highway bridges

Jefferson County Bridge Snapshot

Jefferson County, Iowa contains 142 public highway bridges in the FHWA National Bridge Inventory. Roughly 38.7% are rated “Good,” 36.6% “Fair,” 18.3% “Poor,” and 18.3% 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.

142
Total Bridges
38.7%
Good
18.3%
Poor
18.3%
Structurally Deficient

Condition Distribution

Good
38.7% (55)
Fair
36.6% (52)
Poor
18.3% (26)
SD
18.3% (26)

All Bridges (142)

FM

Fair

Over: STREAM

073081206, Jefferson, IA

Built 1953 Load: 35.7 t ADT: 50

WALTON LAKE DRIVE

Fair

Over: WALTON LAKE SPILLWAY

072093000, Jefferson, IA

Built 2003 Load: 38.1 t ADT: 65

US 34 EB

Fair

Over: CROW CREEK

0.8 mi. E of Jct. Iowa 1, Jefferson, IA

Built 2007 Load: 39.2 t ADT: 2,600

US 34 WB

Fair

Over: MITCHELL CREEK

3.6 mi. W of Jct. IA 1, Jefferson, IA

Built 2008 Load: 40.6 t ADT: 2,485

LOCAL

Fair

Over: SOUTH WALNUT CREEK

073093302, Jefferson, IA

Built 1986 Load: 42.6 t ADT: 15

SPRUCE AVE

Fair

Over: ROCK BRANCH

073083101, Jefferson, IA

Built 1950 Load: 43.4 t ADT: 50

FM

Fair

Over: BRUSH CREEK

072091505, Jefferson, IA

Built 1988 Load: 44.4 t ADT: 200

US 34 WB

Fair

Over: CHURCH CREEK

2.3 mi. E of Jct. SR V63, Jefferson, IA

Built 2007 Load: 46.6 t ADT: 3,900

LOCAL

Fair

Over: STREAM

071102904, Jefferson, IA

Built 1968 Load: 53.2 t ADT: 60

FM

Fair

Over: CREEK

073081902, Jefferson, IA

Built 1950 Load: 55.6 t ADT: 50

FM

Fair

Over: CREEK

072081502, Jefferson, IA

Built 1971 Load: 99.9 t ADT: 330

LOCAL

Good

Over: BIG CEDAR RIVER

071093404, Jefferson, IA

Built 1984 Load: 16.8 t ADT: 34

LOCAL

Good

Over: BRANCH MITCHELL CREEK

072102801, Jefferson, IA

Built 1983 Load: 27.2 t ADT: 80

LOCAL

Good

Over: BRUSH CREEK

072082706, Jefferson, IA

Built 1987 Load: 30.8 t ADT: 30

ASH AVE

Good

Over: CEDAR CREEK

072111804, Jefferson, IA

Built 2014 Load: 32.4 t ADT: 90

ASH AVE

Good

Over: CREEK

072111906, Jefferson, IA

Built 2014 Load: 32.4 t ADT: 90

PEACH AVE

Good

Over: WALNUT CREEK

073092206, Jefferson, IA

Built 2019 Load: 32.4 t ADT: 71

IA 904

Good

Over: BNSF RR

072103000, Jefferson, IA

Built 2011 Load: 32.7 t ADT: 460

PEPPERMINT BLVD

Good

Over: BRANCH TROY CREEK

071090305, Jefferson, IA

Built 2016 Load: 32.7 t ADT: 15

220TH ST

Good

Over: BR TROY CREEK

071090403, Jefferson, IA

Built 2018 Load: 32.7 t ADT: 80

FM

Good

Over: BRANCH CEDAR CREEK

071101004, Jefferson, IA

Built 1990 Load: 32.7 t ADT: 360

265TH ST

Good

Over: CREEK

071102605, Jefferson, IA

Built 2020 Load: 32.7 t ADT: 30

IVY AVE

Good

Over: CREEK

071102806, Jefferson, IA

Built 2016 Load: 32.7 t ADT: 20

EPISCIA AVE

Good

Over: CREEK

071111104, Jefferson, IA

Built 2019 Load: 32.7 t ADT: 15

ELM AVE

Good

Over: LICK CREEK

071112302, Jefferson, IA

Built 2019 Load: 32.7 t ADT: 11

FM

Good

Over: BRUSH CREEK

072090804, Jefferson, IA

Built 2000 Load: 32.7 t ADT: 1,270

PINE AVE

Good

Over: BRANCH OF BRUSH CREEK

072091506, Jefferson, IA

Built 2012 Load: 32.7 t ADT: 30

FM

Good

Over: CROW CREEK

072093105, Jefferson, IA

Built 1994 Load: 32.7 t ADT: 1,400

171ST BLVD

Good

Over: CREEK

072100703, Jefferson, IA

Built 2018 Load: 32.7 t ADT: 26

SPRUCE AVE

Good

Over: BURR OAK CREEK

073080602, Jefferson, IA

Built 1990 Load: 32.7 t ADT: 120

136TH ST

Good

Over: BR WALNUT CREEK

73081903, Jefferson, IA

Built 2018 Load: 32.7 t ADT: 40

REDWOOD AVE

Good

Over: BRANCH WALNUT CREEK

073091304, Jefferson, IA

Built 2020 Load: 32.7 t ADT: 26

OLIVE AVE

Good

Over: BR SOUTH WALNUT CREEK

073093307, Jefferson, IA

Built 2016 Load: 32.7 t ADT: 15

FM

Good

Over: SOUTH WALNUT CREEK

073093306, Jefferson, IA

Built 2006 Load: 32.7 t ADT: 1,030

JASMINE AVE

Good

Over: MIDDLE WALNUT CREEK

073101004, Jefferson, IA

Built 2011 Load: 32.7 t ADT: 170

105TH ST

Good

Over: CREEK

073110303, Jefferson, IA

Built 2018 Load: 32.7 t ADT: 11

ELM AVE

Good

Over: CREEK

073112302, Jefferson, IA

Built 2017 Load: 32.7 t ADT: 80

230TH ST

Good

Over: CREEK

071110202, Jefferson, IA

Built 2019 Load: 32.7 t ADT: 45

230TH ST

Good

Over: CREEK

071110402, Jefferson, IA

Built 2019 Load: 32.7 t ADT: 30

LOCAL

Good

Over: BRUSH CREEK

072082604, Jefferson, IA

Built 1981 Load: 33.0 t ADT: 80

US 34 WB

Good

Over: BIG CEDAR CREEK

1.6 MI W OF JCT. SR V-63, Jefferson, IA

Built 2006 Load: 33.5 t ADT: 3,900

MAHOGANY AVE

Good

Over: DRAINAGE

072090604, Jefferson, IA

Built 2017 Load: 34.0 t ADT: 70

175TH ST

Good

Over: CREEK

072100903, Jefferson, IA

Built 2022 Load: 34.7 t ADT: 90

H33 BROOKVILLE

Good

Over: BRANCH COON CREEK

072110303, Jefferson, IA

Built 2013 Load: 34.7 t ADT: 110

US 34

Good

Over: MITCHELL CREEK

072102800, Jefferson, IA

Built 2009 Load: 34.9 t ADT: 4,360

220TH ST

Good

Over: STREAM

071110203, Jefferson, IA

Built 2016 Load: 36.9 t ADT: 25

US 34 EB

Good

Over: UNNAMED CREEK

1.2 mi. W of Jct. IA #1, Jefferson, IA

Built 2006 Load: 37.3 t ADT: 2,485

US 34 WB

Good

Over: UNNAMED CREEK

1.3 mi. W of Jct. IA #1, Jefferson, IA

Built 2006 Load: 37.3 t ADT: 2,485

257TH ST

Good

Over: UNNAMED STREAM

071102407, Jefferson, IA

Built 2022 Load: 37.6 t ADT: 190

US 34 WB

Good

Over: CROW CREEK

0.8 mi. E of Jct. Iowa 1, Jefferson, IA

Built 2007 Load: 39.2 t ADT: 2,600

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