Shelby County, IA

194 public highway bridges

Shelby County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Shelby County, Iowa contains 194 public highway bridges. Roughly 36.6% are rated “Good,” 53.6% “Fair,” and 9.8% “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.

194
Total Bridges
36.6%
Good
53.6%
Fair
9.8%
Poor Condition

Condition Distribution

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

All Bridges (194)

FM

Good

Over: SILVER CREEK

079391501, Shelby, IA

Built 2005 Load: 38.1 t ADT: 120

LOCAL

Good

Over: MOSQUITO CREEK

079403105, Shelby, IA

Built 2000 Load: 38.5 t ADT: 41

REDWOOD AVE

Good

Over: DUTCH BRANCH

078381602, Shelby, IA

Built 2014 Load: 39.0 t ADT: 51

FM RD F32

Good

Over: LONG BRANCH

802137, Shelby, IA

Built 1999 Load: 39.0 t ADT: 29

LOCAL

Good

Over: MOSQUITO CREEK

079400305, Shelby, IA

Built 2004 Load: 39.2 t ADT: 51

LOCAL

Good

Over: W FORK W NISHNABOTNA RVR

081380701, Shelby, IA

Built 1992 Load: 39.3 t ADT: 45

FM

Good

Over: SILVER CREEK

802739, Shelby, IA

Built 2013 Load: 39.5 t ADT: 1,155

NORTH 7TH ST

Good

Over: SMALL STREAM

D81500610, Shelby, IA

Built 2021 Load: 39.9 t ADT: 114

LOCAL

Good

Over: LONG BRANCH

802837, Shelby, IA

Built 2013 Load: 40.2 t ADT: 41

F16

Good

Over: MILL CREEK

ON F-16 NORTH OF DOGWOOD, Shelby, IA

Built 2017 Load: 40.5 t ADT: 79

LINDEN RD

Good

Over: SMALL STREAM

079380702, Shelby, IA

Built 2014 Load: 40.8 t ADT: 767

FM

Good

Over: W FK W NISHNABOTNA RIVER

079380803, Shelby, IA

Built 1996 Load: 41.0 t ADT: 309

FM

Good

Over: E BR W NISHNABOTNA RIVER

078380506, Shelby, IA

Built 1998 Load: 41.5 t ADT: 29

NISHNA AVE

Good

Over: SMALL STREAM

079380103, Shelby, IA

Built 2015 Load: 42.3 t ADT: 40

FIR RD

Good

Over: MOSQUITO CREEK

080401202, Shelby, IA

Built 2016 Load: 42.4 t ADT: 50

1400TH ST

Good

Over: W NISHNABOTNA RIVER

1400th St W of Orange Rd, Shelby, IA

Built 2015 Load: 43.7 t ADT: 82

FM RD F32

Good

Over: E BRANCH W. NISH. RIVER

802337, Shelby, IA

Built 2001 Load: 44.7 t ADT: 29

2200TH ST

Good

Over: ELK CREEK

081371901, Shelby, IA

Built 2016 Load: 45.0 t ADT: 62

1800TH ST

Good

Over: W FORK W NISHNABOTNA

80838, Shelby, IA

Built 2017 Load: 45.7 t ADT: 26

LOCAL

Good

Over: INDIAN CREEK

078373201, Shelby, IA

Built 2011 Load: 47.6 t ADT: 30

LINDEN RD

Good

Over: SNAKE CREEK

081392508, Shelby, IA

Built 2021 Load: 48.3 t ADT: 300

LINDEN RD

Good

Over: SMALL STREAM

079383002, Shelby, IA

Built 2018 Load: 49.2 t ADT: 390

IA 173

Good

Over: ELKHORN CREEK

1.1 mi. N of Jct. SR F-58, Shelby, IA

Built 2003 Load: 51.2 t ADT: 1,500

IA 44

Good

Over: ELM CREEK

0.2 mi. E of Jct. SR M47, Shelby, IA

Built 1988 Load: 64.5 t ADT: 1,490

FM RD F32

Good

Over: LYONS CREEK

080381904, Shelby, IA

Built 2002 Load: 69.0 t ADT: 608

LOCAL

Poor

Over: INDIAN CREEK

079373504, Shelby, IA

Built 1926 ADT: 35

LOCAL

Poor

Over: KEG CREEK

079401303, Shelby, IA

Built 1966 ADT: 11

LOCAL

Poor

Over: E BRANCH W. NISH. RIVER

801337, Shelby, IA

Built 1920 Load: 4.5 t ADT: 26

LOCAL

Poor

Over: ELKHORN CREEK

078371603, Shelby, IA

Built 1958 Load: 7.1 t ADT: 21

LOCAL

Poor

Over: KEG CREEK

079403503, Shelby, IA

Built 1969 Load: 7.2 t ADT: 11

LOCAL

Poor

Over: KEG CREEK

078400606, Shelby, IA

Built 1924 Load: 7.8 t ADT: 20

LOCAL

Poor

Over: MOSQUITO CREEK

080403505, Shelby, IA

Built 1930 Load: 8.4 t ADT: 26

LOCAL

Poor

Over: MOSQUITO CREEK

079402903, Shelby, IA

Built 1917 Load: 11.8 t ADT: 35

LOCAL

Poor

Over: SMALL STREAM

079382701, Shelby, IA

Built 1950 Load: 12.6 t ADT: 11

LOCAL

Poor

Over: W. NISHNABOTNA

080381001, Shelby, IA

Built 1926 Load: 12.7 t ADT: 21

LOCAL

Poor

Over: SMALL STREAM

079390801, Shelby, IA

Built 1968 Load: 13.5 t ADT: 5

LOCAL

Poor

Over: SMALL STREAM

801340, Shelby, IA

Built 1960 Load: 18.1 t ADT: 30

LOCAL

Poor

Over: SMALL STREAM

078371001, Shelby, IA

Built 1976 Load: 21.4 t ADT: 15

FIELD ENTRANCE

Poor

Over: SMALL STREAM

078373201, Shelby, IA

Built 1942 Load: 21.6 t ADT: 10

LOCAL

Poor

Over: LONG BRANCH

801637, Shelby, IA

Built 1940 Load: 21.7 t ADT: 51

LOCAL

Poor

Over: PIGEON CREEK

803140, Shelby, IA

Built 1947 Load: 21.8 t

FM

Poor

Over: SILVER CREEK

078401103, Shelby, IA

Built 1960 Load: 22.4 t ADT: 131

FM

Poor

Over: SMALL STREAM

078370701, Shelby, IA

Built 1960 Load: 23.7 t ADT: 240

LOCAL

Poor

Over: SMALL STREAM

803037, Shelby, IA

Built 1959 Load: 32.3 t ADT: 35

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

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.