Franklin County, IA

214 public highway bridges

Franklin County Bridge Snapshot

Franklin County, Iowa contains 214 public highway bridges in the FHWA National Bridge Inventory. Roughly 42.1% are rated “Good,” 37.4% “Fair,” 13.6% “Poor,” and 13.6% 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.

214

Total Bridges

42.1%

Good

13.6%

Poor

13.6%

Structurally Deficient

Condition Distribution

Good

42.1% (90)

Fair

37.4% (80)

Poor

13.6% (29)

SD

13.6% (29)

All Bridges (214)

Sort:

LOCAL

Over: MAYNES CREEK

091202304, Franklin, IA

Built 1952 Load: 26.0 t ADT: 30

FM 190TH ST

Over: BUFFALO CREEK

092211201, Franklin, IA

Built 1965 Load: 26.3 t ADT: 884

NETTLE AVE

Over: BUFFALO CREEK

092200502, Franklin, IA

Built 1983 Load: 26.5 t ADT: 20

QUAIL AVE

Over: OTTER CR

092201402, Franklin, IA

Built 1966 Load: 26.5 t ADT: 62

FM JONQUIL AVE

Over: OTTER CREEK

093211002, Franklin, IA

Built 1980 Load: 26.5 t ADT: 44

LARK AVE

Over: OTTER CREEK

093211202, Franklin, IA

Built 1981 Load: 26.5 t ADT: 47

NETTLE AVE

Over: MAYNES CR

091203202, Franklin, IA

Built 1973 Load: 26.6 t ADT: 51

BALSAM AVE

Over: DRAINAGE DITCH #32

091222902, Franklin, IA

Built 1969 Load: 26.6 t ADT: 44

FM MALLARD AVE

Over: OTTER CREEK

093201902, Franklin, IA

Built 1963 Load: 26.6 t ADT: 49

240TH STREET

Over: BEAVERDAM CREEK

093191801, Franklin, IA

Built 1980 Load: 27.1 t ADT: 26

FM OLIVE AVE

Over: SPRING CREEK

092202102, Franklin, IA

Built 1983 Load: 29.8 t ADT: 1,031

FM SPRUCE AVE

Over: N BEAVER CREEK

090193102, Franklin, IA

Built 1971 Load: 30.0 t ADT: 177

FM OLIVE AVE

Over: OTTER CREEK

092200402, Franklin, IA

Built 1975 Load: 30.2 t ADT: 638

180TH STREET

Over: OTTER CREEK

092201501, Franklin, IA

Built 1979 Load: 30.4 t ADT: 44

FM OLIVE AVE

Over: BEEDS CREEK

092202806, Franklin, IA

Built 1961 Load: 30.6 t ADT: 1,365

NETTLE AVE

Over: OTTER CREEK

093203202, Franklin, IA

Built 1978 Load: 30.6 t ADT: 20

FM S13

Over: IOWA RIVER

091223103, Franklin, IA

Built 1978 Load: 30.8 t ADT: 570

FM 210TH ST

Over: OTTER CREEK

093203103, Franklin, IA

Built 1974 Load: 31.9 t ADT: 137

I 35 SB OFF RAMP

Over: DRAINAGE DITCH

0.1 MILES NORTH OF JCT. 3, Franklin, IA

Built 1974 Load: 32.1 t ADT: 680

I-35

Over: DRAINAGE DITCH

1.1 MI. S OF SR C13, Franklin, IA

Built 1972 Load: 32.3 t ADT: 16,900

FM JONQUIL AVE

Over: DRAINAGE DITCH NO 6

090211002, Franklin, IA

Built 1980 Load: 32.7 t ADT: 10

RAVEN AVE

Over: SMALL STREAM

091202502, Franklin, IA

Built 1995 Load: 32.7 t ADT: 26

MALLARD AVE

Over: MAYNES CREEK

091203002, Franklin, IA

Built 2005 Load: 32.7 t ADT: 1,277

KILLDEER AVE

Over: MAYNES CREEK

091212302, Franklin, IA

Built 1984 Load: 32.7 t ADT: 21

HEATHER AVE

Over: BUFFALO CREEK

092210502, Franklin, IA

Built 1987 Load: 32.7 t ADT: 21

LARK AVE

Over: BEEDS CREEK

092212502, Franklin, IA

Built 1968 Load: 32.7 t ADT: 91

YARROW AVE

Over: BOYLAN CREEK

093191302, Franklin, IA

Built 1978 Load: 32.7 t ADT: 10

HEATHER AVE

Over: SMALL STREAM

093210802, Franklin, IA

Built 1990 Load: 32.7 t ADT: 30

LOCAL

Over: FLAY CREEK

093220301, Franklin, IA

Built 1989 Load: 32.7 t ADT: 26

FM 45TH STREET

Over: FIELD DRAW

090222205, Franklin, IA

Built 1981 Load: 32.7 t ADT: 226

SR 160 TH ST

Over: DRAINAGE

092222503, Franklin, IA

Built 1971 Load: 32.7 t ADT: 62

NETTLE AVE

Over: WATERWAY

091201702, Franklin, IA

Built 1960 Load: 32.7 t ADT: 26

1ST ST NW

Over: BEEDS CREEK

0000000000, Franklin, IA

Built 1920 Load: 32.7 t ADT: 2,468

FM (70TH ST)

Over: DD NO. 6

090211101, Franklin, IA

Built 1956 Load: 33.0 t ADT: 570

FM 110TH ST

Over: MAYNES CREEK

091212101, Franklin, IA

Built 1976 Load: 33.0 t ADT: 88

FM 100TH ST

Over: SMALL STREAM

091222901, Franklin, IA

Built 1961 Load: 33.0 t ADT: 560

FRANKLIN AVE

Over: BOYLAN CR

093191104, Franklin, IA

Built 1952 Load: 34.5 t ADT: 5

95TH ST

Over: MAYNES CREEK

091202905, Franklin, IA

Built 1988 Load: 36.3 t ADT: 51

FM 160TH ST

Over: OTTER CREEK

092192901, Franklin, IA

Built 1975 Load: 36.3 t ADT: 88

I 35 SB

Over: FINK CATTLE PASS

0.5 mi. S of Jct. IA 3, Franklin, IA

Built 1973 Load: 36.4 t ADT: 8,250

I-35

Over: STREAM

0.1 mi. N of Jct. IA 3, Franklin, IA

Built 1974 Load: 39.2 t ADT: 15,300

200TH STREET

Over: BUFFALO CR

092210601, Franklin, IA

Built 1965 Load: 39.5 t ADT: 21

SB I-35

Over: OVER ABAND RR

2.9 MI. S OF SR C47, Franklin, IA

Built 1974 Load: 41.3 t ADT: 8,250

LOCAL 30TH ST

Over: BEAVER CREEK

090203601, Franklin, IA

Built 1983 Load: 47.3 t ADT: 16

C 47 (95TH ST)

Over: IOWA RIVER

0.5 miles east of S13, Franklin, IA

Built 2012 Load: 50.2 t ADT: 560

I-35

Over: DRAINAGE DITCH NO.48

0.3 MI S OF SR C47, Franklin, IA

Built 1974 Load: 23.0 t ADT: 15,100

FM GROUSE AVE

Over: DD NO. 30

092211902, Franklin, IA

Built 1973 Load: 24.5 t ADT: 559

I-35

Over: DRAINAGE DITCH

1.0 MI. N of SR C13, Franklin, IA

Built 1972 Load: 28.5 t ADT: 17,300

LOCAL

Over: BEAVER CREEK

090193504, Franklin, IA

Built 1985 Load: 29.8 t ADT: 128

FM RAVEN AVE

Over: SPRING CREEK

092202502, Franklin, IA

Built 1983 Load: 29.8 t ADT: 59

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