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)

Sort:

NEWPORT AVE

Over: SPRING CREEK

075150510, Mahaska, IA

Built 2006 Load: 32.7 t ADT: 150

255TH ST

Over: SPRING CREEK

075152103, Mahaska, IA

Built 2012 Load: 32.7 t ADT: 90

FM

Over: SPRING CREEK

075152705, Mahaska, IA

Built 2003 Load: 32.7 t ADT: 130

FM

Over: PAINTER CREEK

075160201, Mahaska, IA

Built 2010 Load: 32.7 t ADT: 150

245TH ST

Over: DRAINAGE

075161707, Mahaska, IA

Built 2003 Load: 32.7 t ADT: 131

FM

Over: MUCHAKINOCK CREEK

075162709, Mahaska, IA

Built 2001 Load: 32.7 t ADT: 620

FM

Over: LITTLE MUCHAKINOCK CREEK

075163502, Mahaska, IA

Built 2007 Load: 32.7 t ADT: 200

LOCAL

Over: ST JOSEPH CREEK

075171406, Mahaska, IA

Built 2003 Load: 32.7 t ADT: 50

FM

Over: ST JOSEPH CREEK

075172406, Mahaska, IA

Built 1999 Load: 32.7 t ADT: 160

LOCAL

Over: ST JOSEPH CREEK

075172505, Mahaska, IA

Built 1994 Load: 32.7 t ADT: 50

LOCAL

Over: CEDAR CREEK

076140101, Mahaska, IA

Built 1993 Load: 32.7 t ADT: 5

200TH ST

Over: DRAINAGE

076143001, Mahaska, IA

Built 2011 Load: 32.7 t ADT: 20

LOCAL

Over: STREAM

076150502, Mahaska, IA

Built 1983 Load: 32.7 t ADT: 50

FM

Over: DRAINAGE

076162503, Mahaska, IA

Built 1989 Load: 32.7 t ADT: 80

FM

Over: BLACK OAK CREEK

076171002, Mahaska, IA

Built 2003 Load: 32.7 t ADT: 170

LOCAL

Over: MUCHAKINOCK CREEK

076172001, Mahaska, IA

Built 1999 Load: 32.7 t ADT: 34

LOCAL

Over: PLEASANT CREEK

077142201, Mahaska, IA

Built 1998 Load: 32.7 t ADT: 60

FM

Over: BALLINGER CREEK

077163204, Mahaska, IA

Built 2010 Load: 32.7 t ADT: 50

OLD IA 102

Over: SOUTH SKUNK RIVER

077172812, Mahaska, IA

Built 1990 Load: 32.7 t ADT: 2,340

FM

Over: N.SKUNK RIVER OVERFLOW

077143304, Mahaska, IA

Built 1991 Load: 32.7 t ADT: 320

FM

Over: DRAINAGE

075163204, Mahaska, IA

Built 2001 Load: 32.7 t ADT: 620

US 63

Over: TRIB. TO MUCHAKINOCK

5.2 MILES N OF JCT IA 137, Mahaska, IA

Built 1997 Load: 32.7 t ADT: 6,250

FM

Over: BUCKLEY CREEK(MIDDLE BR)

077170404, Mahaska, IA

Built 1984 Load: 32.8 t ADT: 1,130

G63 305TH ST

Over: DRAINAGE

074151303, Mahaska, IA

Built 2016 Load: 33.0 t ADT: 120

LOCAL

Over: MUCHAKINOCK CREEK

075162701, Mahaska, IA

Built 1985 Load: 33.5 t ADT: 71

US 63

Over: UP RR

1.8 MI. N OF JCT. SR T65, Mahaska, IA

Built 2008 Load: 33.8 t ADT: 3,250

LOCAL

Over: BALLINGER CREEK

076170204, Mahaska, IA

Built 1993 Load: 34.5 t ADT: 34

100TH ST

Over: S.ENGLISH RIVER

077140201, Mahaska, IA

Built 1997 Load: 34.5 t ADT: 110

FM

Over: N SKUNK RIVER

077143306, Mahaska, IA

Built 1991 Load: 35.3 t ADT: 320

WB/NB IA 163

Over: OVER UP RR

1.1 MI. E OF JCT. IA 92, Mahaska, IA

Built 1997 Load: 35.6 t ADT: 3,900

FM

Over: MIDDLE CREEK

076143306, Mahaska, IA

Built 1991 Load: 36.3 t ADT: 320

FM

Over: DM RIVER

074160504, Mahaska, IA

Built 2010 Load: 37.2 t ADT: 620

FM

Over: BLUFF CREEK

074162002, Mahaska, IA

Built 1991 Load: 37.9 t ADT: 100

EB/SB IA 163

Over: OVER UP RR

1.1 mi. E of Jct. IA 92, Mahaska, IA

Built 1996 Load: 38.1 t ADT: 3,900

US #63

Over: MUCHAKINOCK CREEK

2.4 mi. N of Jct. IA 137, Mahaska, IA

Built 2001 Load: 39.4 t ADT: 6,250

US 63 SB IA 163 EB

Over: MUCHAKINOCK CREEK

2.4 mi. N of Jct. IA 137, Mahaska, IA

Built 2001 Load: 39.4 t ADT: 6,250

G73 (325TH ST)

Over: BLUFF CREEK

074172703, Mahaska, IA

Built 2012 Load: 42.3 t ADT: 50

NB US 63

Over: MUCHAKINOK CREEK

0.3 MILES SOUTH OF SR G71, Mahaska, IA

Built 1997 Load: 42.4 t ADT: 6,250

SB US 63

Over: MUCHAKINOK CREEK

0.3 mi. S of Jct. SR G71, Mahaska, IA

Built 1997 Load: 42.6 t ADT: 6,250

IA 92

Over: ST JOSEPHS CREEK

3.7 mi. E of Jct. SR T25, Mahaska, IA

Built 1979 Load: 47.9 t ADT: 3,240

LOCAL

Over: BUCK CREEK

077150501, Mahaska, IA

Built 1996 Load: 48.2 t ADT: 34

LOCAL

Over: BUCKLEY CREEK

077172203, Mahaska, IA

Built 1994 Load: 48.2 t ADT: 50

255TH ST

Over: LAKE KEOMAH

0.9 mi.E of SR Queens Ave, Mahaska, IA

Built 2006 Load: 52.2 t

FM

Over: CEDAR CREEK

074143402, Mahaska, IA

Built 1991 Load: 52.9 t ADT: 20

LOCAL

Over: LITTLE MUCHAKINOCK CREEK

075162606, Mahaska, IA

Built 1988 Load: 52.9 t ADT: 210

FM

Over: MUCHAKINOCK CREEK

075163410, Mahaska, IA

Built 2007 Load: 52.9 t ADT: 90

FM

Over: CEDAR CREEK

074141902, Mahaska, IA

Built 1963 ADT: 470

LOCAL

Over: DRAINAGE

074142701, Mahaska, IA

Built 1948 ADT: 45

LOCAL

Over: BLUFF CREEK

074172706, Mahaska, IA

Built 1973 ADT: 11

LOCAL

Over: S COAL CREEK

074173003, Mahaska, IA

Built 1957 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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