Hancock County, IL

291 public highway bridges

Hancock County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Hancock County, Illinois contains 291 public highway bridges. Roughly 41.2% are rated “Good,” 37.8% “Fair,” and 20.3% “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.

291
Total Bridges
41.2%
Good
37.8%
Fair
20.3%
Poor Condition

Condition Distribution

Good
41.2% (120)
Fair
37.8% (110)
Poor
20.3% (59)

All Bridges (291)

TR 93

Poor

Over: N FK OF RILEY CREK

0.5 MI E OF NAUVOO, Hancock, IL

Built 1974 Load: 15.9 t ADT: 75

TR I16

Poor

Over: W FK OF BEAR CREEK

1.0 E ELVASTON, Hancock, IL

Built 1969 Load: 16.5 t ADT: 50

TR 306

Poor

Over: FLOUR CREEK

2.0 MI W AUGUSTA, Hancock, IL

Built 1969 Load: 18.1 t ADT: 50

CO HWY 17

Poor

Over: LA HARPE CREEK

3 MI N OF FTN. GREEN, Hancock, IL

Built 1949 Load: 18.8 t ADT: 225

TR 104

Poor

Over: PANTHER CREEK

3.0 W STILLWELL, Hancock, IL

Built 1968 Load: 19.1 t ADT: 50

TR 84

Poor

Over: LITTLE BEAR CREEK

3.0 MI SW BASCO, Hancock, IL

Built 1972 Load: 19.1 t ADT: 175

TR 27

Poor

Over: BRANCH OF SPRING CR.

3.0 MI NW LAHARPE, Hancock, IL

Built 1950 Load: 19.4 t ADT: 50

TR 71

Poor

Over: TILTON CREEK

2.5 MI SW DURHAM, Hancock, IL

Built 1928 Load: 19.4 t ADT: 75

FAS 424

Poor

Over: CAMP CREEK

2.6 MI. W. OF COLUSA, Hancock, IL

Built 1968 Load: 19.8 t ADT: 450

CO HWY 28

Poor

Over: MIDDLE CREEK

1 MI NW OF MIDDLECK., Hancock, IL

Built 1980 Load: 19.8 t ADT: 50

TR 400

Poor

Over: LA MOINE RIVER

3.5 MI NE LAHARPE, Hancock, IL

Built 1967 Load: 20.1 t ADT: 50

TR 243

Poor

Over: TRIB OF W FK BEAR CR

1.5 MI S ELVASTON, Hancock, IL

Built 1999 Load: 20.1 t ADT: 50

TR 2

Poor

Over: DRAINAGE DITCH

6.0 W TIOGA, Hancock, IL

Built 1974 Load: 21.7 t ADT: 75

TR 170

Poor

Over: BIG MEADOW DITCH

3.1 MI S OF CARTHAGE, Hancock, IL

Built 1929 Load: 22.0 t ADT: 50

CO HWY 31

Poor

Over: MIDDLE CREEK

2.0 MI NE MIDDLE CR, Hancock, IL

Built 1970 Load: 22.4 t ADT: 100

TR 244

Poor

Over: SPRING CREEK

3.0 MI W LAHARPE, Hancock, IL

Built 1983 Load: 22.4 t ADT: 125

TR 123

Poor

Over: N BRANCH OF LARRY CK

4 M SE NAUVOO, Hancock, IL

Built 1960 Load: 22.7 t ADT: 50

TR 198A

Poor

Over: SLATER CREEK

1.0 MI W BOWEN, Hancock, IL

Built 1963 Load: 23.0 t ADT: 25

TR NO 244

Poor

Over: BRHOF SPRING CREEK

1.0 MI W DISCO, Hancock, IL

Built 1977 Load: 23.0 t ADT: 125

TR 306

Poor

Over: WILLIAMS CREEK

2.5 MI SW AUGUSTA, Hancock, IL

Built 1969 Load: 23.7 t ADT: 25

TR 46

Poor

Over: CHANEY CREEK

1 MI N OF HAMILTON, Hancock, IL

Built 1956 Load: 23.7 t ADT: 200

TR 99

Poor

Over: LA HARPE

4.5 MI S LAHARPE, Hancock, IL

Built 1974 Load: 24.9 t ADT: 50

2ND STREET

Poor

Over: RAILROAD CREEK

CITY OF HAMILTON, Hancock, IL

Built 1974 Load: 25.6 t ADT: 150

TR 7

Poor

Over: CAMP CREEK

2.5 SE DALLAS CITY, Hancock, IL

Built 1962 Load: 25.9 t ADT: 100

TR 83A

Poor

Over: WILDCAT CREEK

5.0 MI SW LAHARPE, Hancock, IL

Built 1970 Load: 25.9 t ADT: 75

TR 344

Poor

Over: LITTLE CREEK

2.0 MI S LAHARPE, Hancock, IL

Built 1974 Load: 26.2 t ADT: 75

FAS 431

Poor

Over: MUD CREEK

2.3 MI S. OF WEST PO, Hancock, IL

Built 1959 Load: 27.9 t ADT: 200

TR 46

Poor

Over: RILEY CREEK

2.0 SW NAUVOO, Hancock, IL

Built 1971 Load: 27.9 t ADT: 50

CO. HWY. 12

Poor

Over: PETIT CREEK

7 MI S OF WARSAW, Hancock, IL

Built 1979 Load: 29.2 t ADT: 350

TR 72

Poor

Over: LITTLE BEAR CREEK

5 MI SW OF BASCO, Hancock, IL

Built 1965 Load: 30.5 t ADT: 225

FAP 685, ILL 9

Poor

Over: MISSISSIPPI RIVER

FORT MADISON IOWA, Hancock, IL

Built 1927 Load: 32.4 t ADT: 2,500

TR 278

Poor

Over: FLOUR CREEK

3.0 MI W AUGUSTA, Hancock, IL

Built 1963 Load: 33.0 t ADT: 50

TR 361

Poor

Over: PANTHER CREEK

3.0 MI NE BOWEN, Hancock, IL

Built 1982 Load: 33.7 t ADT: 25

TR 211

Poor

Over: PRAIRIE CREEK

2.8 MI E OF CARTHAGE, Hancock, IL

Built 1976 Load: 34.0 t ADT: 75

TR 90

Poor

Over: FK OF LITTLE BEAR CR

2.0 MI W BASCO, Hancock, IL

Built 1977 Load: 34.7 t ADT: 50

TR 154

Poor

Over: GROVE CREEK

1.5 NW ADRIAN, Hancock, IL

Built 1965 Load: 34.7 t ADT: 150

CH 20

Poor

Over: WILLIAMS CREEK

1.5 MI S OF AUGUSTA, Hancock, IL

Built 1972 Load: 36.3 t ADT: 325

FAS 1425

Poor

Over: ROCK CREEK

2 MI NW OF FERRIS, Hancock, IL

Built 1988 Load: 38.2 t ADT: 20

TR 163

Poor

Over: LA MOINE RIVER

4.0 MI SW FOUNTAIN G, Hancock, IL

Built 1980 Load: 38.2 t ADT: 100

FAS 1600

Poor

Over: RAILROAD CREEK

IN HAMILTON, Hancock, IL

Built 1960 Load: 40.5 t ADT: 2,300

FAS 1425

Poor

Over: BIG MEADOW DITCH

1.0 MI N OF BASCO, Hancock, IL

Built 1961 Load: 46.7 t ADT: 325

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.