Clinton County, IA

325 public highway bridges

Clinton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Clinton County, Iowa contains 325 public highway bridges. Roughly 70.5% are rated “Good,” 23.7% “Fair,” and 2.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

325

Total Bridges

70.5%

Good

23.7%

Fair

2.2%

Poor Condition

Condition Distribution

Good

70.5% (229)

Fair

23.7% (77)

Poor

2.2% (7)

All Bridges (325)

Sort:

420TH AVE.

Over: CREEK

082E63302, Clinton, IA

Built 1991 Load: 32.6 t ADT: 91

230TH ST

Over: CREEK

081E51201, Clinton, IA

Built 1952 Load: 32.7 t ADT: 82

160TH ST

Over: STREAM

082E40501, Clinton, IA

Built 1962 Load: 32.7 t ADT: 21

400TH AVE.

Over: CREEK

083E63002, Clinton, IA

Built 1958 Load: 32.7 t ADT: 40

170TH ST.

Over: DRAINAGE

082E10901, Clinton, IA

Built 1987 Load: 32.8 t ADT: 21

120TH AVE.

Over: SMALL

082E10504, Clinton, IA

Built 1989 Load: 32.8 t ADT: 21

280TH AVE

Over: DEEP CREEK

083E43004, Clinton, IA

Built 1975 Load: 33.1 t ADT: 51

EB US 30

Over: SILVER CK & UP RR

0.7 MI. E OF W JCT US 61, Clinton, IA

Built 1970 Load: 33.1 t ADT: 8,550

MILL CR. EXPWY.

Over: HARTS MILL CREEK

081061505, Clinton, IA

Built 2000 Load: 33.3 t ADT: 8,400

120TH AVE.

Over: CREEK

082E12802, Clinton, IA

Built 1920 Load: 33.7 t ADT: 21

400TH AVE.

Over: SOUTH BRANCH ELK RIVER

083E63102, Clinton, IA

Built 1989 Load: 34.4 t ADT: 80

252ND ST

Over: SILVER CREEK

081E32305, Clinton, IA

Built 1971 Load: 34.6 t ADT: 760

185TH AVENUE

Over: PRAIRIE CREEK

083E20404, Clinton, IA

Built 1973 Load: 34.6 t ADT: 840

110TH ST.

Over: PRAIRIE CREEK

083E20901, Clinton, IA

Built 1975 Load: 34.6 t ADT: 90

WB US 30

Over: AMES CREEK

3.5 MI E OF E JCT US 61, Clinton, IA

Built 1974 Load: 34.9 t ADT: 4,700

160TH ST.

Over: DD #12

082E20501, Clinton, IA

Built 1979 Load: 35.3 t ADT: 35

175TH ST

Over: DRAINAGE DITCH #12

082E21105, Clinton, IA

Built 1980 Load: 35.3 t ADT: 16

200TH AVE

Over: DRAINAGE DITCH #10

082E22302, Clinton, IA

Built 1984 Load: 35.4 t ADT: 60

190TH ST.

Over: SMALL STREAM

082E51904, Clinton, IA

Built 1976 Load: 35.5 t ADT: 26

290TH AVE

Over: SUGAR CREEK

083E40502, Clinton, IA

Built 1987 Load: 35.6 t ADT: 45

247TH AVE

Over: BARBER CREEK

081E33306, Clinton, IA

Built 1985 Load: 35.8 t ADT: 41

110TH ST.

Over: CREEK

083E31101, Clinton, IA

Built 1921 Load: 35.8 t ADT: 51

148TH ST.

Over: SMALL STREAM

083E32803, Clinton, IA

Built 1968 Load: 35.8 t ADT: 11

278TH ST

Over: DRAINAGE

080E20205, Clinton, IA

Built 1996 Load: 37.5 t ADT: 170

340TH AVENUE

Over: CREEK

082E53102, Clinton, IA

Built 1965 Load: 37.5 t ADT: 35

130TH ST

Over: CREEK

083E22301, Clinton, IA

Built 1970 Load: 37.5 t ADT: 16

140TH ST.

Over: CREEK

083E32501, Clinton, IA

Built 1967 Load: 37.5 t ADT: 21

NB US 61

Over: SILVER CREEK

0.9 MI. N OF N JCT US 30, Clinton, IA

Built 1974 Load: 37.9 t ADT: 6,350

290TH AVE

Over: AMES CREEK

081E40502, Clinton, IA

Built 1971 Load: 39.0 t ADT: 1,220

MILL CR. EXPWY.

Over: MILL CREEK

081061107, Clinton, IA

Built 2000 Load: 39.2 t ADT: 7,619

US 30

Over: DRAINAGE DITCH

1.2 mi. E of Jct. SR Y68, Clinton, IA

Built 1974 Load: 40.3 t ADT: 9,400

260TH AVE

Over: CLEAR CREEK

081E31404, Clinton, IA

Built 1995 Load: 40.9 t ADT: 570

200TH AVE

Over: SMALL

080E20204, Clinton, IA

Built 1979 Load: 42.2 t ADT: 104

215 AVE

Over: DEEP CREEK

083E23604, Clinton, IA

Built 2000 Load: 42.4 t ADT: 26

US 67

Over: SHADDUCKS CREEK

5.7 mi. N of N Jct IA 136, Clinton, IA

Built 1967 Load: 43.7 t ADT: 2,170

SB US 61

Over: SILVER CREEK

0.9 mi. N of N Jct. US 30, Clinton, IA

Built 1974 Load: 44.0 t ADT: 6,350

IA 136

Over: MILL CREEK

2.7 Mi. N of N Jct. US 67, Clinton, IA

Built 1989 Load: 45.0 t ADT: 1,430

255TH ST

Over: BARBER CREEK

081E31905, Clinton, IA

Built 1991 Load: 52.8 t ADT: 21

220TH STREET

Over: CREEK

081E40101, Clinton, IA

Built 1960 Load: 57.4 t ADT: 1,010

262ND ST

Over: WEST SILVER CREEK

081E32503, Clinton, IA

Built 1952 Load: 16.3 t ADT: 123

OLD US 61

Over: DEEP CREEK

083E33206, Clinton, IA

Built 1926 Load: 18.0 t ADT: 30

190TH STREET

Over: DRAINAGE

082E22301, Clinton, IA

Built 1958 Load: 22.7 t ADT: 490

160TH ST

Over: STREAM

082E40501, Clinton, IA

Built 1962 Load: 24.5 t ADT: 21

SB US 61

Over: SILVER CREEK

0.5 MI. S OF JCT.US 30, Clinton, IA

Built 1981 Load: 24.9 t ADT: 7,050

170TH AVE.

Over: DRAINAGE DITCH 12

082E20802, Clinton, IA

Built 1962 Load: 26.6 t ADT: 35

160TH AVE

Over: DRAINAGE DITCH #12

082E23002, Clinton, IA

Built 1980 Load: 26.6 t ADT: 41

150TH ST.

Over: DRAINAGE

083E13403, Clinton, IA

Built 1970 Load: 26.6 t ADT: 21

110TH ST.

Over: PRAIRIE CREEK

083E20805, Clinton, IA

Built 1965 Load: 26.6 t ADT: 90

432ND AVENUE

Over: SPRING CREEK

083E62704, Clinton, IA

Built 1969 Load: 26.6 t ADT: 780

150TH ST.

Over: SPRING CREEK

083E63403, Clinton, IA

Built 1976 Load: 26.6 t ADT: 15

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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