Mitchell County, IA

160 public highway bridges

Mitchell County Bridge Snapshot

Mitchell County, Iowa contains 160 public highway bridges in the FHWA National Bridge Inventory. Roughly 47.5% are rated “Good,” 43.1% “Fair,” 9.4% “Poor,” and 9.4% 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.

160
Total Bridges
47.5%
Good
9.4%
Poor
9.4%
Structurally Deficient

Condition Distribution

Good
47.5% (76)
Fair
43.1% (69)
Poor
9.4% (15)
SD
9.4% (15)

All Bridges (160)

FOOTHILL AVE

Fair

Over: ROCK CREEK

098183602, Mitchell, IA

Built 1981 Load: 34.5 t ADT: 26

340TH

Fair

Over: SMALL STREAM

097160401, Mitchell, IA

Built 1974 Load: 35.4 t ADT: 33

MARCH AVE

Fair

Over: SPRING CREEK

097161802, Mitchell, IA

Built 1966 Load: 35.4 t ADT: 177

UNDERWOOD AVE

Fair

Over: CREEK

098151602, Mitchell, IA

Built 1975 Load: 35.4 t ADT: 59

ECHO AVE

Fair

Over: CREEK

100182304, Mitchell, IA

Built 1989 Load: 35.4 t ADT: 25

KIRKWOOD AVE

Fair

Over: SUGAR CREEK

098171104, Mitchell, IA

Built 1974 Load: 36.0 t ADT: 70

450TH

Fair

Over: LITTLE CEDAR RIVER

099160803, Mitchell, IA

Built 1992 Load: 36.3 t ADT: 78

QUAIL AVE

Fair

Over: CREEK

100162302, Mitchell, IA

Built 1977 Load: 36.3 t ADT: 29

LIME KILN RD

Fair

Over: BIG CEDAR RIVER

098173403, Mitchell, IA

Built 1992 Load: 37.1 t ADT: 167

400TH

Fair

Over: BURR OAK CREEK

098160501, Mitchell, IA

Built 1975 Load: 37.2 t ADT: 59

450TH

Fair

Over: SMALL STREAM

099161101, Mitchell, IA

Built 1974 Load: 37.2 t ADT: 26

STATE LINE ST

Fair

Over: LITTLE CEDAR RIVER

100160901, Mitchell, IA

Built 1985 Load: 38.1 t ADT: 26

US 218

Fair

Over: OTTER CREEK

2.6 mi. N of Jct. SR A19, Mitchell, IA

Built 1970 Load: 39.0 t ADT: 2,530

ZINNIA AVE

Fair

Over: SMALL STREAM

100181902, Mitchell, IA

Built 1984 Load: 39.0 t ADT: 167

490TH ST

Fair

Over: CREEK

100182401, Mitchell, IA

Built 1984 Load: 40.8 t ADT: 33

US 218 & IA 9

Fair

Over: SPRING CREEK

1.9 MI. N OF S JCT. IA 9, Mitchell, IA

Built 1967 Load: 42.4 t ADT: 2,460

HICKORY AVE

Fair

Over: STREAM

098173204, Mitchell, IA

Built 1987 Load: 48.1 t ADT: 78

US 218 & IA 9

Fair

Over: SPRING CREEK

0.2 mi. N of S Jct. IA 9, Mitchell, IA

Built 1975 Load: 54.8 t ADT: 2,460

IA 9

Fair

Over: LITTLE CEDAR RIVER

4.0 MI. E OF E JCT. US218, Mitchell, IA

Built 1979 Load: 55.3 t ADT: 1,900

405TH

Good

Over: LITTLE CEDAR RIVER

099163503, Mitchell, IA

Built 1974 Load: 19.0 t ADT: 29

HICKORY AVE

Good

Over: CEDAR RIVER

098170806, Mitchell, IA

Built 1959 Load: 19.3 t ADT: 403

US 218

Good

Over: STREAM

1.0 mile North of SR A19, Mitchell, IA

Built 1967 Load: 21.8 t ADT: 2,530

330TH

Good

Over: FISH CREEK

097161201, Mitchell, IA

Built 1974 Load: 21.8 t ADT: 11

US 218

Good

Over: STREAM

3.3 mi. N of N Jct. IA 9, Mitchell, IA

Built 1979 Load: 22.6 t ADT: 2,260

DANCER AVE

Good

Over: DEER CREEK

099181504, Mitchell, IA

Built 1979 Load: 23.6 t ADT: 44

430TH

Good

Over: WAPSIPINICON RIVER

099152401, Mitchell, IA

Built 1988 Load: 24.5 t ADT: 78

340TH

Good

Over: LITTLE CEDAR RIVER

097150501, Mitchell, IA

Built 1981 Load: 25.1 t ADT: 70

370TH

Good

Over: DRAINAGE DITCH

098161901, Mitchell, IA

Built 1969 Load: 26.3 t ADT: 108

FOOTHILL AVE

Good

Over: BIG CEDAR RIVER

099183602, Mitchell, IA

Built 1950 Load: 26.3 t ADT: 1,021

340TH ST

Good

Over: CREEK

0.3 Mi E Valley Ave, Mitchell, IA

Built 2017 Load: 26.6 t ADT: 49

A43 390TH ST

Good

Over: SOAP CREEK

0.4 Mi W Valley Ave, Mitchell, IA

Built 2017 Load: 26.6 t ADT: 20

380TH

Good

Over: SOAP CREEK

098151701, Mitchell, IA

Built 2004 Load: 26.6 t ADT: 29

370TH

Good

Over: SUGAR CREEK

098172305, Mitchell, IA

Built 2004 Load: 26.6 t ADT: 333

440TH

Good

Over: BEAVER CREEK

0.25 Mi W of Timber Ave, Mitchell, IA

Built 2016 Load: 26.6 t ADT: 11

TIMBER AVE

Good

Over: BEAVER CREEK

.2 m N of 430th, Mitchell, IA

Built 2012 Load: 26.6 t ADT: 39

450TH ST

Good

Over: CREEK

450th 0.15 mW of Primrose, Mitchell, IA

Built 2013 Load: 26.6 t ADT: 49

465TH

Good

Over: WAPSIPINICON RIVER

100153303, Mitchell, IA

Built 2010 Load: 26.6 t ADT: 20

WINDFALL AVE

Good

Over: CREEK

.05 m N of 460th St, Mitchell, IA

Built 2012 Load: 26.6 t ADT: 15

OCEAN AVE

Good

Over: LITTLE CEDAR RIVER

100161606, Mitchell, IA

Built 2003 Load: 26.6 t ADT: 21

DANCER AVE

Good

Over: OTTER CREEK

000000000, Mitchell, IA

Built 2009 Load: 26.6 t ADT: 33

MARCH AVE

Good

Over: CREEK

.3 m S of 480th, Mitchell, IA

Built 2013 Load: 26.6 t ADT: 26

440TH

Good

Over: SMALL STREAM

099161501, Mitchell, IA

Built 1986 Load: 29.0 t ADT: 11

380TH

Good

Over: ROCK

098181601, Mitchell, IA

Built 1970 Load: 29.9 t ADT: 177

500TH

Good

Over: WAPSIPINICON RIVER

100151801, Mitchell, IA

Built 1977 Load: 29.9 t ADT: 70

SHADOW AVE

Good

Over: BURR OAK CREEK

098161204, Mitchell, IA

Built 1974 Load: 30.8 t ADT: 59

440TH

Good

Over: TURTLE CREEK

099171801, Mitchell, IA

Built 1975 Load: 30.8 t ADT: 49

IA 9

Good

Over: SUGAR CREEK

1.2 mi. W of jct. US 218, Mitchell, IA

Built 2013 Load: 32.4 t ADT: 2,990

T34 JERSEY AVE

Good

Over: CREEK

1 Mi S 330th St, Mitchell, IA

Built 2016 Load: 32.4 t ADT: 69

317TH ST

Good

Over: CREEK

0.1 Mi E Jersey Ave, Mitchell, IA

Built 2016 Load: 32.4 t ADT: 11

OLD IA 105

Good

Over: CEDAR RIVER

099181412, Mitchell, IA

Built 1989 Load: 32.7 t ADT: 746

Related

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