Clayton County, IA

214 public highway bridges

Clayton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Clayton County, Iowa contains 214 public highway bridges. Roughly 32.2% are rated “Good,” 57.9% “Fair,” and 9.8% “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.

214

Total Bridges

32.2%

Good

57.9%

Fair

9.8%

Poor Condition

Condition Distribution

Good

32.2% (69)

Fair

57.9% (124)

Poor

9.8% (21)

All Bridges (214)

Sort:

A AVE

Over: STREAM

094061906, Clayton, IA

Built 1900 Load: 5.5 t ADT: 15

HOME ENT (SDB)

Over: PANTHER CREEK

091012903, Clayton, IA

Built 1920 Load: 8.1 t ADT: 10

EGRET RD

Over: STREAM

093052804, Clayton, IA

Built 1940 Load: 10.0 t ADT: 79

ECHO AVE

Over: STREAM

091050306, Clayton, IA

Built 1920 Load: 10.4 t ADT: 11

DOVE AVE

Over: ROBERTS CREEK

094050806, Clayton, IA

Built 1964 Load: 10.4 t ADT: 11

260TH ST

Over: SCHNEIDERS CREEK

093052803, Clayton, IA

Built 1915 Load: 10.7 t ADT: 41

GRANDVIEW RD

Over: VOLGA RIVER

092042605, Clayton, IA

Built 1960 Load: 11.3 t ADT: 491

CABLE AVE

Over: TURKEY RIVER

094062608, Clayton, IA

Built 1953 Load: 11.3 t ADT: 69

BUCK CREEK RD

Over: BUCK CREEK

093032205, Clayton, IA

Built 1954 Load: 11.7 t ADT: 39

270TH ST

Over: SM STREAM

093053405, Clayton, IA

Built 1920 Load: 11.7 t ADT: 11

HARVEST RD

Over: STREAM

091041006, Clayton, IA

Built 1920 Load: 13.6 t ADT: 21

KENNEDY RD

Over: STREAM

092031603, Clayton, IA

Built 1955 Load: 14.3 t ADT: 62

SPOOK CAVE RD

Over: SM STREAM

095041604, Clayton, IA

Built 1954 Load: 14.3 t ADT: 91

JIGSAW RD

Over: CEDAR CREEK

093033103, Clayton, IA

Built 1925 Load: 14.6 t ADT: 21

COFFEE RD

Over: PLUM CREEK

091013403, Clayton, IA

Built 1900 Load: 15.2 t ADT: 49

JASMINE RD

Over: CEDAR CREEK

092030603, Clayton, IA

Built 1953 Load: 15.2 t ADT: 15

KENNEDY RD

Over: CEDAR CREEK

092030703, Clayton, IA

Built 1955 Load: 15.2 t ADT: 34

KENNEDY RD

Over: STREAM

092030703, Clayton, IA

Built 1955 Load: 15.2 t ADT: 34

145TH ST

Over: ROBERTS CREEK

095062605, Clayton, IA

Built 1953 Load: 15.5 t ADT: 59

JUPITER RD

Over: WAYMAN CREEK

092043618, Clayton, IA

Built 1951 Load: 15.6 t ADT: 246

CHARIOT RD

Over: STREAM

094062705, Clayton, IA

Built 1954 Load: 15.6 t ADT: 34

290TH ST

Over: COON CREEK

092050701, Clayton, IA

Built 1920 Load: 15.9 t ADT: 82

IOWA AVE

Over: STREAM

091042604, Clayton, IA

Built 1940 Load: 17.0 t ADT: 79

FANTAIL RD

Over: STREAM

091050106, Clayton, IA

Built 1925 Load: 17.0 t ADT: 15

OSTERDOCK RD

Over: JOLES CREEK

092033606, Clayton, IA

Built 1942 Load: 17.0 t ADT: 412

HAZEL RD

Over: STREAM

092042604, Clayton, IA

Built 1954 Load: 17.0 t ADT: 30

FORT RD

Over: STREAM

092052703, Clayton, IA

Built 1931 Load: 17.0 t ADT: 39

BUSH RD

Over: WILLOW CREEK

092060504, Clayton, IA

Built 1948 Load: 17.0 t ADT: 15

HARBER RD

Over: STREAM

093042102, Clayton, IA

Built 1954 Load: 17.0 t ADT: 29

CHARIOT RD

Over: STREAM

093050506, Clayton, IA

Built 1957 Load: 17.0 t ADT: 34

APPLE RD

Over: STREAM

094060404, Clayton, IA

Built 1949 Load: 17.0 t ADT: 403

CHARIOT RD

Over: SM STREAM

094061907, Clayton, IA

Built 1953 Load: 17.0 t ADT: 73

ABBEY RD

Over: STREAM

094062906, Clayton, IA

Built 1955 Load: 17.0 t ADT: 25

DOGWOOD AVE

Over: SILVER CREEK

095053002, Clayton, IA

Built 1930 Load: 17.0 t ADT: 98

ASPEN AVE

Over: ROBERTS CREEK

095060804, Clayton, IA

Built 1957 Load: 17.0 t ADT: 157

CONCORD AVE

Over: STREAM

095063504, Clayton, IA

Built 1948 Load: 17.0 t ADT: 47

HORSESHOE RD

Over: ELK CREEK

091042607, Clayton, IA

Built 1939 Load: 18.0 t ADT: 79

NICKEL RD

Over: LITTLE TURKEY

091021604, Clayton, IA

Built 1935 Load: 18.1 t ADT: 62

BIGHORN RD

Over: HEWETT CREEK

092062204, Clayton, IA

Built 1920 Load: 18.1 t ADT: 51

390TH ST

Over: MAQUOKETA RIVER

091063103, Clayton, IA

Built 1958 Load: 18.5 t ADT: 108

KENNEDY RD

Over: SM STREAM

092030807, Clayton, IA

Built 1955 Load: 18.5 t ADT: 34

GRAPE RD

Over: DRY MILL CR

093043003, Clayton, IA

Built 1959 Load: 18.5 t ADT: 69

145TH ST

Over: STREAM

095052805, Clayton, IA

Built 1925 Load: 18.8 t ADT: 137

HERON AVE

Over: DRY MILL CREEK

093040406, Clayton, IA

Built 1960 Load: 21.1 t ADT: 82

GLACIER RD

Over: DOE CR

092043106, Clayton, IA

Built 1958 Load: 22.0 t ADT: 108

US 18 & 52

Over: BRANCH ROBERTS CREEK

0.3 MI. W OF JCT. SR W64, Clayton, IA

Built 1967 Load: 22.2 t ADT: 4,140

GRAPE RD

Over: ROBERT CREEK

093052504, Clayton, IA

Built 1946 Load: 22.4 t ADT: 196

BEAR RD

Over: ENSIGN HOLLOW

092062806, Clayton, IA

Built 1976 Load: 22.5 t ADT: 39

220TH ST

Over: BUCK CREEK

093030503, Clayton, IA

Built 1978 Load: 22.5 t ADT: 15

232ND ST

Over: BUCK CREEK

093030903, Clayton, IA

Built 1973 Load: 22.5 t ADT: 113

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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Compiled by PlainBridges, Independent data publisher

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.