Shelby County, IA

194 public highway bridges

Shelby County Bridge Snapshot

Shelby County, Iowa contains 194 public highway bridges in the FHWA National Bridge Inventory. Roughly 36.6% are rated “Good,” 53.6% “Fair,” 9.8% “Poor,” and 9.8% 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.

194
Total Bridges
36.6%
Good
9.8%
Poor
9.8%
Structurally Deficient

Condition Distribution

Good
36.6% (71)
Fair
53.6% (104)
Poor
9.8% (19)
SD
9.8% (19)

All Bridges (194)

LOCAL RD

Fair

Over: W FORK W NISH

081391203, Shelby, IA

Built 1993 Load: 7.3 t ADT: 30

FM RD F16

Fair

Over: BEE TREE CREEK

081400905, Shelby, IA

Built 1960 Load: 10.8 t ADT: 60

LOCAL

Fair

Over: MOSQUITO CREEK

079400911, Shelby, IA

Built 1960 Load: 10.9 t ADT: 51

LOCAL

Fair

Over: ELM CREEK

079382404, Shelby, IA

Built 1926 Load: 11.8 t ADT: 62

LOCAL

Fair

Over: W NISHNABOTNA RIVER

802238, Shelby, IA

Built 1920 Load: 11.8 t ADT: 26

LOCAL

Fair

Over: SMALL STREAM

079373401, Shelby, IA

Built 1963 Load: 12.3 t ADT: 46

LOCAL

Fair

Over: WILLOW CREEK

081391401, Shelby, IA

Built 1955 Load: 13.0 t ADT: 26

LOCAL

Fair

Over: SMALL STREAM

081403603, Shelby, IA

Built 1950 Load: 13.0 t ADT: 30

LOCAL

Fair

Over: KEG CREEK

079391801, Shelby, IA

Built 1992 Load: 13.2 t ADT: 15

LOCAL

Fair

Over: SNAKE CREEK

081381702, Shelby, IA

Built 1995 Load: 13.2 t ADT: 21

LOCAL

Fair

Over: ELM CREEK

079370801, Shelby, IA

Built 2000 Load: 13.9 t ADT: 30

FM

Fair

Over: SMALL STREAM

079380704, Shelby, IA

Built 1957 Load: 14.1 t ADT: 159

LOCAL

Fair

Over: ELM CREEK

079370404, Shelby, IA

Built 2000 Load: 14.3 t ADT: 41

LOCAL

Fair

Over: ELM CREEK

079371702, Shelby, IA

Built 1969 Load: 14.3 t ADT: 46

LOCAL

Fair

Over: MILL CREEK TRIBUTARY

081400909, Shelby, IA

Built 1967 Load: 14.7 t ADT: 30

LOCAL

Fair

Over: LONG BRANCH

081372603, Shelby, IA

Built 1987 Load: 15.1 t ADT: 41

LOCAL

Fair

Over: ELK CREEK

081371801, Shelby, IA

Built 1960 Load: 15.2 t ADT: 26

LOCAL

Fair

Over: W. NISHNABOTNA RIVER

081370303, Shelby, IA

Built 1955 Load: 15.4 t ADT: 26

LOCAL

Fair

Over: PIGEON CREEK

802040, Shelby, IA

Built 1950 Load: 16.8 t ADT: 62

FM

Fair

Over: DUTCH BRANCH

078381702, Shelby, IA

Built 1950 Load: 17.2 t ADT: 34

LOCAL

Fair

Over: SMALL STREAM

081392306, Shelby, IA

Built 1951 Load: 17.2 t ADT: 11

FM

Fair

Over: SILVER CREEK

079393404, Shelby, IA

Built 1959 Load: 17.8 t ADT: 29

LOCAL

Fair

Over: KEG CREEK

079402502, Shelby, IA

Built 1958 Load: 17.8 t ADT: 30

LOCAL

Fair

Over: SMALL STREAM

079403602, Shelby, IA

Built 1958 Load: 17.8 t ADT: 35

FM RD F16

Fair

Over: WILLOW CREEK

081391001, Shelby, IA

Built 1958 Load: 17.8 t ADT: 60

FM

Fair

Over: LITTLE SILVER CREEK

078403405, Shelby, IA

Built 1958 Load: 18.1 t ADT: 110

LOCAL

Fair

Over: SMALL STREAM

802340, Shelby, IA

Built 1959 Load: 18.1 t ADT: 51

LOCAL

Fair

Over: LONG BRANCH CREEK

081372401, Shelby, IA

Built 1956 Load: 18.1 t ADT: 26

FM

Fair

Over: LONG BRANCH

081372602, Shelby, IA

Built 1957 Load: 18.1 t ADT: 45

FM

Fair

Over: LONG BRANCH

081373401, Shelby, IA

Built 1956 Load: 18.1 t ADT: 537

FM

Fair

Over: ELKHORN CREEK

078372007, Shelby, IA

Built 1959 Load: 18.5 t ADT: 29

FM RD M56

Fair

Over: LONG BRANCH CREEK

80337, Shelby, IA

Built 1958 Load: 18.8 t ADT: 50

LOCAL

Fair

Over: SILVER CREEK

803439, Shelby, IA

Built 1994 Load: 18.8 t ADT: 45

LOCAL

Fair

Over: SMALL STREAM

803440, Shelby, IA

Built 1950 Load: 18.9 t ADT: 30

110TH ST

Fair

Over: KEG CREEK

079391801, Shelby, IA

Built 1954 Load: 19.2 t ADT: 15

LOCAL

Fair

Over: MOSER CREEK

081391601, Shelby, IA

Built 1960 Load: 19.2 t ADT: 11

FM

Fair

Over: W NISHNABOTNA RIVER

081373103, Shelby, IA

Built 1960 Load: 19.8 t ADT: 668

FM

Fair

Over: MOSER CREEK

081392103, Shelby, IA

Built 1962 Load: 19.8 t ADT: 50

LOCAL

Fair

Over: SMALL STREAM

078372902, Shelby, IA

Built 1969 Load: 20.0 t ADT: 21

LOCAL

Fair

Over: BONNIE CREEK

079372203, Shelby, IA

Built 1957 Load: 20.1 t ADT: 51

LOCAL

Fair

Over: KEG CREEK

079390403, Shelby, IA

Built 1956 Load: 20.1 t ADT: 21

LOCAL

Fair

Over: SMALL STREAM

079393102, Shelby, IA

Built 1957 Load: 20.1 t ADT: 35

LOCAL

Fair

Over: SMALL STREAM

079393102, Shelby, IA

Built 1957 Load: 20.1 t ADT: 35

LOCAL

Fair

Over: SMALL STREAM

081370303, Shelby, IA

Built 1954 Load: 20.1 t ADT: 26

JUNIPER RD

Fair

Over: SMALL STREAM

078390906, Shelby, IA

Built 1950 Load: 20.4 t ADT: 72

LOCAL

Fair

Over: SNAKE CREEK

081381906, Shelby, IA

Built 1998 Load: 20.4 t ADT: 15

FM

Fair

Over: W FK W NISHNABOTNA RIVER

079380704, Shelby, IA

Built 1973 Load: 20.7 t ADT: 159

LOCAL

Fair

Over: EAST BRANCH KEG CREEK

078402002, Shelby, IA

Built 1954 Load: 21.1 t ADT: 30

FM

Fair

Over: SILVER CREEK

078402603, Shelby, IA

Built 1914 Load: 21.4 t ADT: 41

LOCAL

Fair

Over: BUCK CREEK

079371202, Shelby, IA

Built 1955 Load: 21.4 t ADT: 35

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