Madison County, IA

221 public highway bridges

Madison County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Madison County, Iowa contains 221 public highway bridges. Roughly 16.3% are rated “Good,” 45.7% “Fair,” and 37.6% “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.

221

Total Bridges

16.3%

Good

45.7%

Fair

37.6%

Poor Condition

Condition Distribution

Good

16.3% (36)

Fair

45.7% (101)

Poor

37.6% (83)

All Bridges (221)

Sort:

SR P-48

Over: I-80

At jct. of SR P48, Madison, IA

Built 1959 ADT: 26,100

LOCAL RD

Over: NORTH RIVER

077272904, Madison, IA

Built 1920 Load: 10.1 t ADT: 40

LOCAL RD

Over: MIDDLE RIVER

075290606, Madison, IA

Built 1930 Load: 10.3 t ADT: 29

LOCAL

Over: NORTH FORK CLANTON CREEK

074271606, Madison, IA

Built 1983 Load: 12.2 t ADT: 11

LOCAL RD

Over: DRAINAGE

076261703, Madison, IA

Built 1978 Load: 12.4 t ADT: 20

FM

Over: NORTH RIVER

077293102, Madison, IA

Built 1930 Load: 12.9 t ADT: 50

LOCAL

Over: BROADHORN CREEK

074260104, Madison, IA

Built 1985 Load: 13.9 t ADT: 26

LOCAL RD

Over: NORTH RIVER

076261104, Madison, IA

Built 1920 Load: 14.3 t ADT: 60

FM

Over: JIM CREEK

077291502, Madison, IA

Built 1962 Load: 14.9 t ADT: 597

FM

Over: DEER CREEK

074271904, Madison, IA

Built 1951 Load: 15.4 t ADT: 50

LOCAL

Over: CEDAR CREEK

076260908, Madison, IA

Built 1958 Load: 15.5 t ADT: 34

FM

Over: CLANTON CREEK

075263207, Madison, IA

Built 1956 Load: 15.7 t ADT: 71

LOCAL RD

Over: JONES CREEK

075262104, Madison, IA

Built 1975 Load: 16.0 t ADT: 5

LOCAL

Over: STREAM

077273302, Madison, IA

Built 1981 Load: 16.1 t ADT: 60

LOCAL RD

Over: NORTH RIVER

076290502, Madison, IA

Built 1962 Load: 17.5 t ADT: 20

LOCAL RD

Over: DRAINAGE

074291201, Madison, IA

Built 1977 Load: 17.8 t ADT: 20

LOCAL RD

Over: MIDDLE RIVER

076273605, Madison, IA

Built 1960 Load: 18.1 t ADT: 71

FM

Over: STREAM

077261301, Madison, IA

Built 1936 Load: 18.1 t ADT: 1,714

FM

Over: NORTH RIVER

077273602, Madison, IA

Built 1961 Load: 18.1 t ADT: 50

LOCAL RD

Over: DRAINAGE

076290402, Madison, IA

Built 1962 Load: 18.2 t ADT: 15

LOCAL RD

Over: NORTH RIVER

077273412, Madison, IA

Built 1966 Load: 18.8 t ADT: 29

FM

Over: WATERWAY

074263503, Madison, IA

Built 1949 Load: 19.2 t ADT: 259

LOCAL RD

Over: CLANTON CREEK

074271007, Madison, IA

Built 1974 Load: 19.4 t ADT: 20

FM

Over: MIDDLE RIVER

075281510, Madison, IA

Built 1981 Load: 19.4 t ADT: 180

FM

Over: S FORK CLANTON CREEK

074272204, Madison, IA

Built 1979 Load: 20.0 t ADT: 60

LOCAL RD

Over: CLANTON CREEK

075262702, Madison, IA

Built 1978 Load: 20.0 t ADT: 40

FM

Over: NORTH RIVER

076281802, Madison, IA

Built 1949 Load: 20.0 t ADT: 477

LOCAL

Over: DRAINAGE

077292502, Madison, IA

Built 1960 Load: 20.3 t ADT: 26

FIELD ENTRANCE

Over: SIDE DITCH

075270806, Madison, IA

Built 1940 Load: 20.4 t ADT: 10

LOCAL RD

Over: MIDDLE RIVER

075281706, Madison, IA

Built 1976 Load: 20.4 t ADT: 26

LOCAL

Over: JONES CREEK

075272808, Madison, IA

Built 1985 Load: 21.0 t ADT: 71

LOCAL

Over: HOWERDON CREEK

076282004, Madison, IA

Built 1978 Load: 21.0 t ADT: 29

LOCAL

Over: NORTH CLANTON CREEK

074280605, Madison, IA

Built 1988 Load: 21.2 t ADT: 20

FM

Over: STREAM

077271404, Madison, IA

Built 1960 Load: 21.4 t ADT: 71

LOCAL RD

Over: DRAINAGE

076261403, Madison, IA

Built 1946 Load: 22.0 t ADT: 20

FM

Over: CEDAR CREEK

076272011, Madison, IA

Built 1964 Load: 22.1 t ADT: 259

LOCAL

Over: N FORK CLANTON CREEK

074270706, Madison, IA

Built 1985 Load: 22.3 t ADT: 100

LOCAL RD

Over: NORTH RIVER

076270201, Madison, IA

Built 1981 Load: 22.3 t ADT: 110

FM

Over: CEDAR CREEK

076272304, Madison, IA

Built 1962 Load: 22.3 t ADT: 89

FM

Over: BADGER CREEK

077271104, Madison, IA

Built 1960 Load: 22.3 t ADT: 131

LOCAL RD

Over: NORTH RIVER

077272802, Madison, IA

Built 1975 Load: 22.3 t ADT: 131

LOCAL RD

Over: DRAINAGE

075292801, Madison, IA

Built 1959 Load: 22.5 t ADT: 11

LOCAL

Over: SMALL

077280204, Madison, IA

Built 1942 Load: 22.5 t ADT: 50

FM

Over: FIELD DRAINAGE DITCH

074263603, Madison, IA

Built 1949 Load: 23.0 t ADT: 259

US 169

Over: DRAINAGE DITCH

0.6 MI. N OF Jct. SR G-68, Madison, IA

Built 1976 Load: 23.2 t ADT: 1,890

FM

Over: DRAINAGE

074270708, Madison, IA

Built 1978 Load: 23.5 t ADT: 60

LOCAL

Over: DRAINAGE

077282702, Madison, IA

Built 1949 Load: 23.6 t ADT: 50

LOCAL RD

Over: MIDDLE RIVER

076293102, Madison, IA

Built 1959 Load: 24.2 t ADT: 40

FM

Over: OVERFLOW N.RIVER

077273602, Madison, IA

Built 1961 Load: 24.3 t ADT: 50

LOCAL

Over: DRAINAGE

076293301, Madison, IA

Built 1938 Load: 24.6 t ADT: 29

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.