Mahaska County, IA

219 public highway bridges

Mahaska County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Mahaska County, Iowa contains 219 public highway bridges. Roughly 24.7% are rated “Good,” 38.8% “Fair,” and 33.3% “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.

219
Total Bridges
24.7%
Good
38.8%
Fair
33.3%
Poor Condition

Condition Distribution

Good
24.7% (54)
Fair
38.8% (85)
Poor
33.3% (73)

All Bridges (219)

LOCAL

Poor

Over: DRAINAGE DITCH #2

075163306, Mahaska, IA

Built 1900 ADT: 11

FM

Poor

Over: N SKUNK RIVER

076141001, Mahaska, IA

Built 1966 ADT: 370

FM

Poor

Over: N SKUNK RIVER OVERFLOW

076141001, Mahaska, IA

Built 1961 ADT: 370

LOCAL

Poor

Over: DRAINAGE

076150501, Mahaska, IA

Built 1950 ADT: 80

LOCAL

Poor

Over: MITCHELL CREEK

076161603, Mahaska, IA

Built 1936 ADT: 26

LOCAL

Poor

Over: PAINTER CREEK

076163507, Mahaska, IA

Built 1951 ADT: 90

140TH ST

Poor

Over: CEDAR CREEK

077142505, Mahaska, IA

Built 1950 ADT: 10

FM

Poor

Over: DRAINAGE

077153203, Mahaska, IA

Built 1954 ADT: 30

FIELD ENTRANCE

Poor

Over: MUCHAKINOCK CREEK(SDB)

074162403, Mahaska, IA

Built 1952 ADT: 10

G13 110TH ST

Poor

Over: N SKUNK RIVER

077150703, Mahaska, IA

Built 1960 Load: 4.5 t ADT: 35

FM

Poor

Over: DRAINAGE

076152401, Mahaska, IA

Built 1951 Load: 4.8 t ADT: 35

LOCAL

Poor

Over: DRAINAGE

077172807, Mahaska, IA

Built 1957 Load: 5.3 t ADT: 71

FM

Poor

Over: S COAL CREEK

074171004, Mahaska, IA

Built 1951 Load: 5.8 t ADT: 10

LOCAL

Poor

Over: DRAINAGE

077152301, Mahaska, IA

Built 1900 Load: 7.3 t ADT: 5

LOCAL

Poor

Over: MUCHAKINOCK CREEK

076172704, Mahaska, IA

Built 1957 Load: 7.9 t ADT: 100

LOCAL

Poor

Over: MUCHAKINOCH CREEK

075161710, Mahaska, IA

Built 1951 Load: 8.1 t ADT: 60

LOCAL

Poor

Over: LITTLE BLUFF CK

074173505, Mahaska, IA

Built 1955 Load: 8.4 t ADT: 50

LOCAL

Poor

Over: MOON CREEK

077150101, Mahaska, IA

Built 1952 Load: 8.4 t ADT: 40

FM

Poor

Over: N COAL CREEK

074170406, Mahaska, IA

Built 1953 Load: 9.1 t ADT: 20

FM

Poor

Over: BUCKLEY CREEK

077170901, Mahaska, IA

Built 1951 Load: 9.3 t ADT: 70

LOCAL

Poor

Over: COAL CREEK

074170107, Mahaska, IA

Built 1900 Load: 9.9 t ADT: 71

LOCAL

Poor

Over: STREAM

076150601, Mahaska, IA

Built 1950 Load: 10.5 t ADT: 140

LOCAL

Poor

Over: DRAINAGE

075141808, Mahaska, IA

Built 1960 Load: 10.6 t ADT: 60

LOCAL

Poor

Over: CEDAR CREEK

076141203, Mahaska, IA

Built 1973 Load: 11.6 t ADT: 26

FM

Poor

Over: OLIVE BRANCH CREEK

074140103, Mahaska, IA

Built 1950 Load: 12.5 t ADT: 30

290TH ST

Poor

Over: DRAINAGE DITCH #2

074160907, Mahaska, IA

Built 1900 Load: 13.0 t ADT: 45

LOCAL

Poor

Over: PLEASANT CREEK

077143305, Mahaska, IA

Built 1956 Load: 13.6 t ADT: 15

LOCAL

Poor

Over: STREAM

077162303, Mahaska, IA

Built 1953 Load: 13.6 t ADT: 60

LOCAL

Poor

Over: PRICE CREEK

075170608, Mahaska, IA

Built 1970 Load: 13.7 t ADT: 71

LOCAL

Poor

Over: PLEASANT CREEK

076140403, Mahaska, IA

Built 1956 Load: 13.8 t ADT: 5

LOCAL

Poor

Over: DRAINAGE

076161903, Mahaska, IA

Built 1956 Load: 14.0 t ADT: 15

LOCAL

Poor

Over: DRAINAGE

077171604, Mahaska, IA

Built 1950 Load: 14.1 t ADT: 34

LOCAL

Poor

Over: S COAL CREEK

074171201, Mahaska, IA

Built 1951 Load: 14.7 t ADT: 80

LOCAL

Poor

Over: DRAINAGE

076153103, Mahaska, IA

Built 1963 Load: 14.9 t ADT: 100

LOCAL

Poor

Over: DRAINAGE

076172706, Mahaska, IA

Built 1957 Load: 14.9 t ADT: 100

LOCAL

Poor

Over: MIDDLE CREEK

076150802, Mahaska, IA

Built 1963 Load: 15.2 t ADT: 40

LOCAL

Poor

Over: DRAINAGE

075142605, Mahaska, IA

Built 1951 Load: 15.7 t ADT: 45

LOCAL

Poor

Over: DRAINAGE

075162206, Mahaska, IA

Built 1973 Load: 15.7 t ADT: 80

LOCAL

Poor

Over: DRAINAGE

077140804, Mahaska, IA

Built 1957 Load: 15.7 t ADT: 20

FM

Poor

Over: OVER UP RR

076150703, Mahaska, IA

Built 1961 Load: 15.8 t ADT: 370

LOCAL

Poor

Over: N COAL CREEK

074170204, Mahaska, IA

Built 1955 Load: 15.9 t ADT: 11

LOCAL

Poor

Over: DRAINAGE

075142208, Mahaska, IA

Built 1957 Load: 15.9 t ADT: 30

LOCAL

Poor

Over: SPRING CREEK

075150807, Mahaska, IA

Built 1965 Load: 15.9 t ADT: 120

LOCAL

Poor

Over: ST JOSEPH CREEK

075172507, Mahaska, IA

Built 1959 Load: 15.9 t ADT: 71

FM

Poor

Over: BUCKLEY CREEK

077172707, Mahaska, IA

Built 1956 Load: 15.9 t ADT: 140

LOCAL

Poor

Over: TURKEY RUN

074172402, Mahaska, IA

Built 1948 Load: 16.1 t ADT: 50

FM

Poor

Over: SO SKUNK RIVER

075151108, Mahaska, IA

Built 1956 Load: 16.4 t ADT: 290

LOCAL

Poor

Over: SPRING CREEK

075151703, Mahaska, IA

Built 1964 Load: 17.2 t ADT: 90

LOCAL

Poor

Over: BUCKLEY CREEK

077170503, Mahaska, IA

Built 1929 Load: 17.9 t ADT: 131

LOCAL

Poor

Over: MUCHAKINOCH CREEK

075160703, Mahaska, IA

Built 1951 Load: 18.0 t ADT: 50

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

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.