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)

NB US 61

Unknown

Over: IA 136

AT JCT. OF IA 136, Clinton, IA

Built 1995 ADT: 485

SB US 61

Unknown

Over: IA 136

AT JCT. OF IA. 136, Clinton, IA

Built 1995 ADT: 970

EB US 30

Unknown

Over: S 6TH AVE

1.5 MI. E OF E JCT. US 61, Clinton, IA

Built 1970 ADT: 2,410

WB US 30

Unknown

Over: S 6TH AVE

1.5 MI. E OF E JCT. US 61, Clinton, IA

Built 1970 ADT: 2,410

NB US 61

Unknown

Over: 225TH STREET

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

Built 1974 ADT: 80

SB US 61

Unknown

Over: 225TH STREET

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

Built 1974 ADT: 100

NB US 61

Unknown

Over: US 30 & W.11TH ST

AT N JCT. OF US 30, Clinton, IA

Built 1970 ADT: 1,630

SB US 61

Unknown

Over: US 30 & W 11TH ST

AT N JCT. OF US 30, Clinton, IA

Built 1970 ADT: 1,445

FM

Unknown

Over: US 61

1.6 MI.S.of S. Jct.US 30, Clinton, IA

Built 1984 ADT: 18,000

110TH ST

Unknown

Over: US 61

1.0 MI. N OF JCT. IA #136, Clinton, IA

Built 1996 ADT: 9,500

CO RD Y 62

Unknown

Over: US 30

0.3 mi. W of E Jct. US 61, Clinton, IA

Built 1975 ADT: 14,400

US 30

Unknown

Over: US 30 & US 61

At E jct. of US 61, Clinton, IA

Built 1975 ADT: 11,200

OLD US 61

Fair

Over: SILVER CREEK

082E31004, Clinton, IA

Built 1926 ADT: 200

NB US 61

Fair

Over: WAPSIPINICON OVERFLOW

2.8 miles S of U.S. 30, Clinton, IA

Built 1981 Load: 19.2 t ADT: 8,800

SB US 61

Fair

Over: WAPSIPINICON OVERFLOW

2.8 miles S of U.S.30, Clinton, IA

Built 1981 Load: 19.2 t ADT: 8,800

US 30

Fair

Over: OVER UP RR

0.6 mi. E of jct. SR Y4E, Clinton, IA

Built 1955 Load: 21.0 t ADT: 2,550

WB US 30

Fair

Over: SILVER CK & UP RR

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

Built 1970 Load: 21.8 t ADT: 8,550

215TH ST

Fair

Over: DRAINAGE DITCH 11

082E13601, Clinton, IA

Built 1988 Load: 22.7 t ADT: 26

PERSHING BLVD

Fair

Over: STREAM

082073005, Clinton, IA

Built 1975 Load: 22.7 t ADT: 754

N. 2ND ST.

Fair

Over: STREAM

082072902, Clinton, IA

Built 1975 Load: 22.7 t ADT: 1,223

N.EAST ST.

Fair

Over: CREEK

081030802, Clinton, IA

Built 1960 Load: 24.5 t ADT: 360

135TH ST.

Fair

Over: DEEP CR

083E51903, Clinton, IA

Built 1974 Load: 26.3 t ADT: 21

362ND AVENUE

Fair

Over: SIMMONS CREEK

083E51602, Clinton, IA

Built 1964 Load: 26.6 t ADT: 1,610

105TH ST.

Fair

Over: RAT RUN CREEK

083E10403, Clinton, IA

Built 1986 Load: 26.8 t ADT: 11

463RD AVENUE

Fair

Over: CREEK

082E71804, Clinton, IA

Built 1923 Load: 27.2 t ADT: 11

LOCAL CO.LINE

Fair

Over: SMALL STREAM

083E60103, Clinton, IA

Built 1993 Load: 27.2 t ADT: 78

IA 136

Fair

Over: ELWOOD CREEK

3.1 MI. N OF JCT. US 61, Clinton, IA

Built 1952 Load: 27.8 t ADT: 1,000

135TH ST.

Fair

Over: ELK RIVER

083E72003, Clinton, IA

Built 1986 Load: 27.8 t ADT: 41

100TH ST.

Fair

Over: CREEK

083E30607, Clinton, IA

Built 1959 Load: 27.9 t ADT: 29

425TH AVENUE

Fair

Over: ELK RIVER

083E62104, Clinton, IA

Built 1991 Load: 28.1 t ADT: 26

100TH ST

Fair

Over: ELK RIVER

083E60501, Clinton, IA

Built 1950 Load: 28.2 t ADT: 78

US 30 EB

Fair

Over: UP RR

5.8 MI. E OF S JCT. US 61, Clinton, IA

Built 1974 Load: 28.9 t ADT: 4,700

118TH AVENUE

Fair

Over: WAPSIPINICON RIVER

082E11704, Clinton, IA

Built 1963 Load: 29.0 t ADT: 350

EB US 30

Fair

Over: BROPHYS CREEK

8.5 MI. E OF E JCT. US 61, Clinton, IA

Built 1969 Load: 29.4 t ADT: 5,000

225TH ST.

Fair

Over: SMALL STREAM

081E10303, Clinton, IA

Built 1994 Load: 29.4 t ADT: 26

135TH STREET

Fair

Over: SMALL STREAM

083E52003, Clinton, IA

Built 1984 Load: 29.4 t ADT: 35

197TH ST

Fair

Over: CHERRY CREEK

082E42405, Clinton, IA

Built 1980 Load: 29.8 t ADT: 73

410TH AVE.

Fair

Over: SOUTH BRANCH ELK RIVER

083E62902, Clinton, IA

Built 1989 Load: 30.0 t ADT: 62

210TH AVENUE

Fair

Over: DRAINAGE DITCH 5

080E20104, Clinton, IA

Built 1965 Load: 30.3 t ADT: 750

220TH STREET

Fair

Over: BROPHY CREEK

081E50403, Clinton, IA

Built 1964 Load: 30.3 t ADT: 1,010

350TH AVE

Fair

Over: BROPHY CREEK

081E52002, Clinton, IA

Built 1964 Load: 30.3 t ADT: 460

190TH STREET

Fair

Over: DRAINAGE DITCH 12

082E21901, Clinton, IA

Built 1967 Load: 30.3 t ADT: 320

190TH STREET

Fair

Over: SILVER CREEK WEST

082E32201, Clinton, IA

Built 1968 Load: 30.3 t ADT: 800

140TH STREET

Fair

Over: SPRING CREEK

083E62801, Clinton, IA

Built 1963 Load: 30.3 t ADT: 860

130TH AVENUE

Fair

Over: YANKEE RUN CREEK

081E11504, Clinton, IA

Built 1968 Load: 30.4 t ADT: 10

250TH AVENUE

Fair

Over: DEEP CREEK

083E32704, Clinton, IA

Built 1968 Load: 30.4 t ADT: 950

US 30 WB

Fair

Over: UP RR

5.8 MI. E OF S JCT. US 61, Clinton, IA

Built 1974 Load: 30.5 t ADT: 4,500

EB US 30

Fair

Over: AMES CREEK

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

Built 1974 Load: 31.1 t ADT: 4,700

250TH AVE

Fair

Over: BLACK CREEK

082E32702, Clinton, IA

Built 1985 Load: 31.7 t ADT: 11

320TH AVE

Fair

Over: SMALL

083E42604, Clinton, IA

Built 1978 Load: 32.5 t ADT: 350

Related

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