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)

Sort:

LOCAL ROAD

Over: BR OTTER CREEK

075232306, Warren, IA

Built 1977 Load: 22.1 t ADT: 72

LOCAL

Over: FELTERS BRANCH

076241901, Warren, IA

Built 1977 Load: 22.1 t ADT: 72

LOCAL ROAD

Over: COTTON CREEK

074222804, Warren, IA

Built 1980 Load: 22.3 t ADT: 35

LOCAL ROAD

Over: COAL CREEK

076222504, Warren, IA

Built 1976 Load: 22.3 t ADT: 11

50TH AVE

Over: MIDDLE SOUTH CREEK

077250200, Warren, IA

Built 1971 Load: 22.3 t ADT: 144

LOCAL

Over: BADGER CREEK

077252904, Warren, IA

Built 1978 Load: 22.3 t ADT: 120

200TH AVE

Over: RIGHT SIDE DITCH

0.7 mi. E of E Jct SR S23, Warren, IA

Built 1973 Load: 22.5 t ADT: 10

HARRISON ST

Over: BR MIDDLE RIVER

076240907, Warren, IA

Built 1949 Load: 22.7 t ADT: 62

FM

Over: BRANCH SOUTH RIVER

075250102, Warren, IA

Built 1940 Load: 23.3 t ADT: 29

JESUP ST

Over: FELTERS BRANCH

076243001, Warren, IA

Built 2013 Load: 23.9 t ADT: 91

LOC

Over: WHITEBREAST CK

074223504, Warren, IA

Built 1991 Load: 24.5 t ADT: 41

WILSON ST

Over: BRANCH WALNUT CREEK

074253303, Warren, IA

Built 1970 Load: 24.5 t ADT: 11

LOCAL ROAD

Over: TURKEY CREEK

074230402, Warren, IA

Built 1940 Load: 25.5 t ADT: 26

IA 28

Over: NORTH RIVER

0.6 MILES N OF SR G24, Warren, IA

Built 1983 Load: 27.2 t ADT: 5,900

US 65

Over: OTTER CREEK

1.6 MI. S OF JCT. SR G-58, Warren, IA

Built 1958 Load: 28.8 t ADT: 2,380

FM

Over: COAL CREEK

076222306, Warren, IA

Built 1984 Load: 29.0 t ADT: 439

LOCAL ROAD

Over: BRANCH OTTER CREEK

074233002, Warren, IA

Built 1970 Load: 29.2 t ADT: 41

FM

Over: WOLF CREEK

074220906, Warren, IA

Built 1975 Load: 29.9 t ADT: 887

FM

Over: COTTON CREEK

074222704, Warren, IA

Built 1969 Load: 30.4 t ADT: 400

FM

Over: WHITE BREAST CREEK

074222705, Warren, IA

Built 1976 Load: 30.8 t ADT: 100

FM

Over: SOUTH RIVER

076233504, Warren, IA

Built 1979 Load: 30.8 t ADT: 1,330

FM

Over: DEER CREEK

077233111, Warren, IA

Built 1985 Load: 30.8 t ADT: 937

FM

Over: NORTH RIVER

077241606, Warren, IA

Built 1986 Load: 30.8 t ADT: 2,998

I 35

Over: BROAD HORN CREEK

1.0 MI. N OF SR G-64, Warren, IA

Built 1957 Load: 32.7 t ADT: 21,000

I-35

Over: DRAINAGE DITCH

5.7 MI. S OF JCT. IA 92, Warren, IA

Built 1958 Load: 32.7 t ADT: 21,000

LOCAL ROAD

Over: WOLF CREEK

074221304, Warren, IA

Built 1994 Load: 32.7 t ADT: 15

FM

Over: WINN BRANCH WB CREEK

074222407, Warren, IA

Built 2003 Load: 32.7 t ADT: 500

LOCAL ROAD

Over: TURKEY CREEK

074230805, Warren, IA

Built 1975 Load: 32.7 t ADT: 11

FM

Over: INDIAN CREEK

074231810, Warren, IA

Built 1983 Load: 32.7 t ADT: 50

FM

Over: SKINAWAY CREEK

074242705, Warren, IA

Built 1986 Load: 32.7 t ADT: 499

FM

Over: MIDDLE RIVER

075250501, Warren, IA

Built 1976 Load: 32.7 t ADT: 34

LOCAL ROAD

Over: BRANCH SOUTH RIVER

075251204, Warren, IA

Built 1977 Load: 32.7 t ADT: 103

LOCAL ROAD

Over: BRANCH SOUTH RIVER

076233603, Warren, IA

Built 1975 Load: 32.7 t ADT: 134

LOCAL

Over: BRANCH MIDDLE RIVER

077242503, Warren, IA

Built 1988 Load: 32.7 t ADT: 103

G24

Over: BRANCH NORTH RIVER

077243101, Warren, IA

Built 1973 Load: 32.7 t ADT: 1,783

40TH AVE

Over: MID SOUTH CREEK

077251002, Warren, IA

Built 1983 Load: 32.7 t ADT: 932

LOCAL

Over: BUTCHER CREEK

077232604, Warren, IA

Built 1985 Load: 33.6 t ADT: 26

IA 92

Over: SOUTH RIVER

0.4 MI E OF E JCT SR S23, Warren, IA

Built 1983 Load: 34.7 t ADT: 2,190

SB IA 5

Over: NORTH RIVER

0.9 MI. S OF JCT US 65, Warren, IA

Built 1996 Load: 36.6 t ADT: 8,250

FM

Over: SOUTH RIVER

074251704, Warren, IA

Built 1986 Load: 37.1 t ADT: 100

BEARDSLEY STREET

Over: SM STREAM

077251200, Warren, IA

Built 1989 Load: 37.1 t ADT: 616

FM

Over: WHITE BREAST

074222403, Warren, IA

Built 1988 Load: 37.2 t ADT: 500

FM

Over: SOUTH RIVER

075240304, Warren, IA

Built 1990 Load: 37.7 t ADT: 780

FM

Over: OVER UP RR

077222906, Warren, IA

Built 1994 Load: 37.9 t ADT: 270

FM

Over: MIDDLE RIVER

077231505, Warren, IA

Built 1994 Load: 41.5 t ADT: 409

FM

Over: CLANTON CREEK

076253206, Warren, IA

Built 1985 Load: 42.1 t ADT: 100

FM

Over: NORTH R OVERFLOW CHANNEL

077242104, Warren, IA

Built 1986 Load: 42.1 t ADT: 2,998

US 65 & 69

Over: SOUTH RIVER OVERFLOW

1.7 mi. S of IA 92, Warren, IA

Built 2011 Load: 23.3 t ADT: 5,400

FM

Over: NORTH RIVER

077241104, Warren, IA

Built 1985 Load: 25.4 t ADT: 278

US 69

Over: SKINAWAY CREEK

0.3 mi. S of SR G76, Warren, IA

Built 1987 Load: 28.2 t ADT: 1,210

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026