Clinton County, IA

325 public highway bridges

Clinton County Bridge Snapshot

Clinton County, Iowa contains 325 public highway bridges in the FHWA National Bridge Inventory. Roughly 70.5% are rated “Good,” 23.7% “Fair,” 2.2% “Poor,” and 2.2% 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.

325
Total Bridges
70.5%
Good
2.2%
Poor
2.2%
Structurally Deficient

Condition Distribution

Good
70.5% (229)
Fair
23.7% (77)
Poor
2.2% (7)
SD
2.2% (7)

All Bridges (325)

212TH ST

Good

Over: WEST SILVER CREEK

082E33503, Clinton, IA

Built 2003 Load: 43.4 t ADT: 310

130TH AVE

Good

Over: WEST ROCK CREEK

081E13406, Clinton, IA

Built 2005 Load: 43.7 t ADT: 1,060

225TH STREET

Good

Over: SILVER CREEK

081E30208, Clinton, IA

Built 1997 Load: 43.7 t ADT: 200

220TH STREET

Good

Over: CHERRY CREEK

081E40101, Clinton, IA

Built 1989 Load: 43.7 t ADT: 1,010

275TH AVE

Good

Over: SUGAR CREEK

083E30104, Clinton, IA

Built 2016 Load: 43.7 t ADT: 26

250TH AVENUE

Good

Over: CREEK

083E32202, Clinton, IA

Built 1958 Load: 43.7 t ADT: 950

115TH ST.

Good

Over: ELK RIVER

083E61009, Clinton, IA

Built 1992 Load: 43.7 t ADT: 120

155TH ST

Good

Over: SILVER CREEK

083E73105, Clinton, IA

Built 2012 Load: 43.7 t ADT: 91

223RD AVE

Good

Over: SMALL CREEK

081E33004, Clinton, IA

Built 2022 Load: 45.0 t ADT: 41

F21 270TH ST

Good

Over: BARBER CREEK

081E33203, Clinton, IA

Built 2022 Load: 45.2 t ADT: 100

278TH ST

Good

Over: ROCK CREEK

081E13506, Clinton, IA

Built 2015 Load: 45.4 t ADT: 26

290TH AVE

Good

Over: DEEP CREEK

000000000, Clinton, IA

Built 2009 Load: 45.5 t ADT: 70

270TH ST

Good

Over: SILVER CREEK

000000000, Clinton, IA

Built 2009 Load: 46.0 t ADT: 220

370TH AVE

Good

Over: BROPHY CREEK

082E51002, Clinton, IA

Built 1999 Load: 47.5 t ADT: 11

160TH STREET

Good

Over: DD #23

082E10401, Clinton, IA

Built 2016 Load: 48.3 t ADT: 30

260TH AVE

Good

Over: SMALL STREAM

000000000, Clinton, IA

Built 2009 Load: 49.0 t ADT: 490

270TH AVE

Good

Over: SMALL STREAM

081E33604, Clinton, IA

Built 2017 Load: 49.6 t ADT: 30

367TH AVE

Good

Over: SMALL STREAM

082E53306, Clinton, IA

Built 1998 Load: 50.3 t ADT: 25

140TH STREET

Good

Over: CREEK

083E22601, Clinton, IA

Built 1988 Load: 50.4 t ADT: 47

262ND AVE

Good

Over: CREEK

081E33504, Clinton, IA

Built 2017 Load: 50.9 t ADT: 62

150TH ST.

Good

Over: STREAM

083E13509, Clinton, IA

Built 1991 Load: 51.0 t ADT: 80

160TH ST

Good

Over: DD NO 11

082E10201, Clinton, IA

Built 2022 Load: 51.2 t ADT: 51

190TH STREET

Good

Over: CREEK

082E32401, Clinton, IA

Built 1961 Load: 51.2 t ADT: 710

175TH ST.

Good

Over: SMALL STREAM

082E20907, Clinton, IA

Built 1992 Load: 51.6 t ADT: 26

140TH AVE

Good

Over: DRAINAGE DITCH

083E13502, Clinton, IA

Built 2003 Load: 51.7 t ADT: 550

262ND ST

Good

Over: AMES CREEK

081E42901, Clinton, IA

Built 2003 Load: 53.2 t ADT: 580

300TH AVENUE

Good

Over: AMES CREEK

081E42104, Clinton, IA

Built 2004 Load: 53.5 t ADT: 536

432ND AVENUE

Good

Over: N BRANCH OF ELK RIVER

083E60304, Clinton, IA

Built 1998 Load: 53.5 t ADT: 73

115TH STREET

Good

Over: ELK RIVER

083E60803, Clinton, IA

Built 1990 Load: 53.5 t ADT: 150

320TH AVE

Good

Over: CREEK

082E43502, Clinton, IA

Built 2021 Load: 54.8 t ADT: 26

250TH AVE

Good

Over: CLEAR CREEK

081E31504, Clinton, IA

Built 2022 Load: 55.4 t ADT: 35

350TH AVE

Good

Over: CHERRY CREEK

081E51702, Clinton, IA

Built 2006 Load: 55.5 t ADT: 80

SB US 61

Good

Over: SILVER CREEK

6.4 mi. S of Jct. IA #136, Clinton, IA

Built 1996 Load: 56.1 t ADT: 4,600

195TH ST

Good

Over: MILL CREEK

082E62203, Clinton, IA

Built 2017 Load: 56.4 t ADT: 51

165TH STREET

Good

Over: SILVER CREEK (WEST)

082E30505, Clinton, IA

Built 2006 Load: 56.6 t ADT: 62

120TH ST

Good

Over: CREEK

083E61801, Clinton, IA

Built 2018 Load: 56.7 t ADT: 51

235TH STREET

Good

Over: CHERRY CREEK

081E41203, Clinton, IA

Built 2007 Load: 57.4 t ADT: 82

265TH AVE

Good

Over: SUGAR CREEK

083E30206, Clinton, IA

Built 2018 Load: 57.7 t ADT: 33

150TH ST.

Good

Over: DEEP CREEK

083E33203, Clinton, IA

Built 2005 Load: 57.8 t ADT: 16

445TH AVENYE

Good

Over: ELK RIVER

083E61106, Clinton, IA

Built 2005 Load: 58.0 t ADT: 62

120TH ST.

Good

Over: DEEP CREEK

083E51701, Clinton, IA

Built 2003 Load: 58.1 t ADT: 104

208 AVE

Good

Over: DEEP CREEK

083E23504, Clinton, IA

Built 2000 Load: 58.6 t ADT: 11

390TH AVE.

Good

Over: STREAM

082E51202, Clinton, IA

Built 1959 Load: 58.8 t ADT: 51

120TH AVE

Good

Over: CREEK

082E13302, Clinton, IA

Built 2022 Load: 62.5 t ADT: 35

110TH ST.

Good

Over: UNION CREEK

083E30703, Clinton, IA

Built 1992 Load: 64.1 t ADT: 73

290TH AVE.

Good

Over: SMALL STREAM

083E42902, Clinton, IA

Built 2003 Load: 64.7 t ADT: 70

215TH STREET

Good

Over: CREEK

082E43303, Clinton, IA

Built 1964 Load: 64.8 t ADT: 550

160TH ST

Good

Over: SOUTH BRANCH ELK RIVER

082E60601, Clinton, IA

Built 2021 Load: 66.1 t ADT: 25

118TH ST.

Good

Over: RAT RUN CREEK

083E10404, Clinton, IA

Built 2010 Load: 68.4 t ADT: 47

148TH ST.

Good

Over: CREEK

00000, Clinton, IA

Built 2011 Load: 69.0 t ADT: 62

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