Warren County, IA

231 public highway bridges

Warren County Bridge Snapshot

Warren County, Iowa contains 231 public highway bridges in the FHWA National Bridge Inventory. Roughly 36.8% are rated “Good,” 33.8% “Fair,” 21.2% “Poor,” and 21.2% 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.

231
Total Bridges
36.8%
Good
21.2%
Poor
21.2%
Structurally Deficient

Condition Distribution

Good
36.8% (85)
Fair
33.8% (78)
Poor
21.2% (49)
SD
21.2% (49)

All Bridges (231)

FM

Good

Over: NORTH RIVER

077252712, Warren, IA

Built 1998 Load: 35.2 t ADT: 170

LOCAL

Good

Over: BRANCH MIDDLE RIVER

076252303, Warren, IA

Built 1999 Load: 35.7 t ADT: 91

IA 28

Good

Over: SOUTH MIDDLE CREEK

0.6 MI. S OF Jct. IA 5, Warren, IA

Built 1984 Load: 36.1 t ADT: 18,500

LOCAL ROAD

Good

Over: PAINTER CREEK

075252304, Warren, IA

Built 1997 Load: 36.7 t ADT: 51

LOCAL ROAD

Good

Over: WEST CREEK

074243204, Warren, IA

Built 1993 Load: 37.3 t ADT: 34

50TH AVE

Good

Over: SOUTH RIVER

074250202, Warren, IA

Built 2002 Load: 37.6 t ADT: 21

55TH AVE

Good

Over: BR MIDDLE RIVER

076252306, Warren, IA

Built 2018 Load: 37.6 t ADT: 62

LOCAL ROAD

Good

Over: CLANTON CREEK

075250606, Warren, IA

Built 1991 Load: 38.5 t ADT: 72

SW 9TH STREET

Good

Over: MIDDLE CREEK

077240904, Warren, IA

Built 2023 Load: 38.9 t ADT: 4,465

IA 5 NB

Good

Over: NORTH RIVER

0.9 MI. S of Jct. U.S. 65, Warren, IA

Built 1983 Load: 39.5 t ADT: 8,200

LOCAL ROAD

Good

Over: SOUTH RIVER

075230404, Warren, IA

Built 2008 Load: 39.9 t ADT: 226

FM

Good

Over: S RIVER

075251207, Warren, IA

Built 2003 Load: 39.9 t ADT: 229

FORD ST

Good

Over: BR NORTH RIVER

077253305, Warren, IA

Built 2015 Load: 39.9 t ADT: 60

65TH AVE

Good

Over: BRANCH SOUTH RIVER

075252506, Warren, IA

Built 2016 Load: 40.0 t ADT: 11

G62 ROOSEVELT ST

Good

Over: FLANK CREEK

074221101, Warren, IA

Built 2016 Load: 40.2 t ADT: 50

S23 S CENTRAL AVE

Good

Over: MILL CREEK

074222704, Warren, IA

Built 2021 Load: 40.2 t ADT: 400

LOCAL

Good

Over: NORTH RIVER

077230802, Warren, IA

Built 1984 Load: 40.4 t ADT: 154

IA 5 SB

Good

Over: COAL CREEK

0.7 MILES NORTH OF IA 316, Warren, IA

Built 1997 Load: 41.3 t ADT: 4,300

QUEBEC ST

Good

Over: FLANK CREEK

074220301, Warren, IA

Built 2019 Load: 41.8 t ADT: 26

IDAHO STREET

Good

Over: BRANCH MIDDLE RIVER

076251503, Warren, IA

Built 2021 Load: 41.8 t ADT: 113

FM

Good

Over: WEST CREEK

074242705, Warren, IA

Built 1987 Load: 42.0 t ADT: 499

LOCAL

Good

Over: BRANCH SQUAW CREEK

074242702, Warren, IA

Built 2008 Load: 42.1 t ADT: 26

G64 STONE ST

Good

Over: SOUTH RIVER BRANCH

074251401, Warren, IA

Built 2023 Load: 42.4 t ADT: 50

FM

Good

Over: WEST CREEK

074240905, Warren, IA

Built 2002 Load: 42.5 t ADT: 60

FM

Good

Over: WEST CREEK

075241503, Warren, IA

Built 1996 Load: 42.5 t ADT: 278

NB I 35

Good

Over: CLANTON CREEK

2.4 mi. S of Jct. IA #92, Warren, IA

Built 2007 Load: 42.9 t ADT: 11,400

FM

Good

Over: DD

076240404, Warren, IA

Built 1994 Load: 45.4 t ADT: 2,641

IA 28

Good

Over: DRAINAGE DITCH

0.5 MILE N OF JCT. IA 92, Warren, IA

Built 1927 Load: 47.0 t ADT: 2,420

FLEUR DR.

Good

Over: MIDDLE SOUTH CREEK

077240500, Warren, IA

Built 2002 Load: 47.1 t ADT: 4,643

FM

Good

Over: BUTCHER CREEK

077232605, Warren, IA

Built 2004 Load: 48.2 t ADT: 45

LOCAL ROAD

Good

Over: BRANCH OTTER CREEK

075230804, Warren, IA

Built 1996 Load: 49.8 t ADT: 11

FM

Good

Over: PAINTER CREEK

075252702, Warren, IA

Built 2007 Load: 52.9 t ADT: 747

FM

Poor

Over: PAINTER CREEK

075252404, Warren, IA

Built 1900 Load: 4.0 t ADT: 71

LOCAL ROAD

Poor

Over: WOLF CREEK

074221704, Warren, IA

Built 1958 Load: 7.6 t ADT: 30

LOCAL ROAD

Poor

Over: FLANK CREEK

075223301, Warren, IA

Built 1965 Load: 10.7 t ADT: 30

LOCAL

Poor

Over: MIDDLE RIVER

076251410, Warren, IA

Built 1950 Load: 11.6 t ADT: 72

LOCAL

Poor

Over: BRANCH FLANK CREEK

074221002, Warren, IA

Built 1965 Load: 14.5 t ADT: 46

FM

Poor

Over: WOLF CREEK

074221202, Warren, IA

Built 1955 Load: 14.5 t ADT: 110

LOCAL

Poor

Over: BRANCH SOUTH RIVER

076221008, Warren, IA

Built 1973 Load: 15.1 t ADT: 11

LOCAL

Poor

Over: CAVITT CREEK

076241101, Warren, IA

Built 1960 Load: 15.3 t ADT: 26

R35 10TH AVE

Poor

Over: NORTH RIVER

076250602, Warren, IA

Built 1962 Load: 16.3 t ADT: 260

FM

Poor

Over: NORTH RIVER

077253205, Warren, IA

Built 1960 Load: 16.3 t ADT: 60

FM

Poor

Over: S RIVER

075240504, Warren, IA

Built 1949 Load: 16.7 t ADT: 807

GRIMES ST

Poor

Over: BRANCH NORTH RIVER

076250705, Warren, IA

Built 2000 Load: 16.7 t ADT: 15

FM

Poor

Over: S RIVER

074251603, Warren, IA

Built 1950 Load: 17.6 t ADT: 100

FM

Poor

Over: CAVITT CREEK

076240204, Warren, IA

Built 1967 Load: 18.3 t ADT: 79

LOCAL ROAD

Poor

Over: PAINTER CREEK

075252205, Warren, IA

Built 1947 Load: 19.3 t ADT: 35

LOCAL

Poor

Over: BRANCH SQUAW CREEK

074243404, Warren, IA

Built 1960 Load: 20.2 t ADT: 51

LOCAL

Poor

Over: MIDDLE RIVER

077231204, Warren, IA

Built 1940 Load: 20.2 t ADT: 103

LOCAL

Poor

Over: BR.SOUTH RIVER

076221009, Warren, IA

Built 1940 Load: 20.9 t ADT: 11

Read our methodology — how this data is sourced, computed, and verified.

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