Piatt County, IL

249 public highway bridges

Piatt County Bridge Snapshot

Piatt County, Illinois contains 249 public highway bridges in the FHWA National Bridge Inventory. Roughly 59.4% are rated “Good,” 28.9% “Fair,” 4.8% “Poor,” and 4.8% 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 IL 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.

249

Total Bridges

59.4%

Good

4.8%

Poor

4.8%

Structurally Deficient

Condition Distribution

Good

59.4% (148)

Fair

28.9% (72)

Poor

4.8% (12)

SD

4.8% (12)

All Bridges (249)

Sort:

TR 43

Over: GOOSE CREEK

1.5 MI NE DELAND, Piatt, IL

Built 2006 Load: 32.4 t ADT: 50

TR 66

Over: GOOSE CREEK

2.7 MI NW MONTICELLO, Piatt, IL

Built 2005 Load: 32.4 t ADT: 25

TR 115

Over: TRIB SANGAMON RV

2.0 MI SSE CISCO, Piatt, IL

Built 2006 Load: 32.4 t ADT: 10

TR65

Over: UNNAMED STREAM

0.5 MI SW LODGE, Piatt, IL

Built 2005 Load: 32.4 t ADT: 25

TR 125

Over: Unnamed tributary

3 mi S of Cisco, Piatt, IL

Built 2007 Load: 32.4 t ADT: 100

TR 167

Over: LAKE FORK

2.5 MI SE BEMENT, Piatt, IL

Built 2006 Load: 32.4 t ADT: 75

TR 33

Over: CREEK

3.5 MI NNE DELAND, Piatt, IL

Built 2011 Load: 32.4 t ADT: 25

TR 40A

Over: WILDCAT CREEK

2.5 MI W MONTICELLO, Piatt, IL

Built 2010 Load: 32.4 t ADT: 75

TR 129

Over: WILLOW BRANCH

1200N 525E, Piatt, IL

Built 2013 Load: 32.4 t ADT: 50

TR-73

Over: Goose Creek

3.50mi SE of Deland, Piatt, IL

Built 2017 Load: 32.4 t ADT: 75

ILLINOIS ST(MS 710

Over: GOOSE CREEK

VILLAGE OF DELAND, Piatt, IL

Built 1989 Load: 32.4 t ADT: 100

TR 85

Over: STREAM

4 MI NW OF CISCO, Piatt, IL

Built 1973 Load: 34.3 t ADT: 10

I-74 (EB)

Over: NS Railway & Madden Cree

.5 MI W MANSFIELD, Piatt, IL

Built 1970 Load: 34.7 t ADT: 10,750

IL 48(FAP 760)

Over: STREAM

4 MI N OF I-72, Piatt, IL

Built 1987 Load: 34.7 t ADT: 1,250

TR 121

Over: LAKE FORK

2.3 MI SE MONTICELLO, Piatt, IL

Built 1978 Load: 35.3 t ADT: 50

FAP 756 (BRIDGE ST

Over: SANGAMON RIVER

W EDGE OF MONTICELLO, Piatt, IL

Built 1950 Load: 36.6 t ADT: 5,150

TR 80

Over: STREAM

1.5 MI NW GALESVILLE, Piatt, IL

Built 1986 Load: 36.9 t ADT: 25

CH 9

Over: MADDEN CREEK

2.0 MI E GALESVILLE, Piatt, IL

Built 1977 Load: 37.3 t ADT: 225

FAS 541(CH 6)

Over: STREAM

1 MI E ALLERTON PARK, Piatt, IL

Built 1980 Load: 37.3 t ADT: 350

FAS 538(CH 5)

Over: GOOSE CREEK

VILLAGE OF DELAND, Piatt, IL

Built 1979 Load: 37.9 t ADT: 1,600

CH 14

Over: LAKE FORK DRAIN DIT

4.0 MI SW IVESDALE, Piatt, IL

Built 1979 Load: 37.9 t ADT: 75

TR 51

Over: SANGAMON RIVER TRIB

.5 MI SW CENTERVILLE, Piatt, IL

Built 2021 Load: 38.6 t ADT: 50

FAS 1517(US 150)

Over: MADDEN CREEK

.5 MI E OF MANSFIELD, Piatt, IL

Built 1993 Load: 38.9 t ADT: 1,650

Bridge Street

Over: CREEK

MONTICELLO, Piatt, IL

Built 1982 Load: 40.5 t ADT: 400

TR 195

Over: STREAM

4. MI SE CERRO GORDO, Piatt, IL

Built 1963 Load: 41.1 t ADT: 25

TR 105

Over: WOLF RUN

2.0 MI E CISCO, Piatt, IL

Built 2019 Load: 41.1 t ADT: 50

IL 105(FAP 741)

Over: STREAM

2 MI SW OF BEMENT, Piatt, IL

Built 1986 Load: 41.5 t ADT: 900

IL 10 (FAP 721)

Over: MADDEN CREEK

.5 MI E OF LODGE, Piatt, IL

Built 1931 Load: 42.8 t ADT: 1,950

TR 170

Over: TRIB NORTH LAKE

3.0 MI NW ATWOOD, Piatt, IL

Built 2019 Load: 42.8 t ADT: 50

TR 183

Over: LAKE FORK DRAIN DITC

3.5 MI NW ATWOOD, Piatt, IL

Built 2022 Load: 43.7 t ADT: 50

FAS 1517(US 150)

Over: S BRANCH SALT CREEK

1 MI E FARMER CITY, Piatt, IL

Built 2012 Load: 44.4 t ADT: 1,300

TR 105

Over: WILDCAT CREEK

3.0 MI W MONTICELLO, Piatt, IL

Built 2004 Load: 45.0 t ADT: 225

ILL 10(FAP 721)

Over: GOOSE CREEK

E EDGE OF DELAND, Piatt, IL

Built 1932 Load: 45.4 t ADT: 1,950

US 150 (FAS 1517)

Over: Norfolk Southern Railway

MANSFIELD, Piatt, IL

Built 2010 Load: 46.3 t ADT: 1,400

TR 105

Over: STREAM

CO. FARM RD., Piatt, IL

Built 1991 Load: 46.3 t ADT: 125

I-74

Over: MADDEN CREEK TRIB

MANSFIELD INTERCHNG, Piatt, IL

Built 1971 Load: 78.7 t ADT: 22,800

FAS 495

Over: MADDEN CREEK

NORTH OF MANSFIELD, Piatt, IL

Built 1971 Load: 89.1 t ADT: 1,850

TR 126

Over: LAKEFORK DRAINAGE

3.0 MI SE BEMENT, Piatt, IL

Built 1967 Load: 18.8 t ADT: 25

TR 135

Over: DRAINAGE DITCH

1 MI W IVESDALE, Piatt, IL

Built 1955 Load: 19.8 t ADT: 50

TR 156(FAS 1530)

Over: DRAINAGE DITCH

3.5 MI E BEMENT, Piatt, IL

Built 1962 Load: 22.0 t ADT: 50

TR 59

Over: GOOSE CREEK

1.0 MI SW DELAND, Piatt, IL

Built 1965 Load: 27.9 t ADT: 75

TR 171

Over: LAKE FORK

3.2 MI SE BEMENT, Piatt, IL

Built 1964 Load: 27.9 t ADT: 75

TR 207

Over: STREAM

1.5 NE LA PLACE, Piatt, IL

Built 1978 Load: 32.4 t ADT: 25

TR 4

Over: STREAM

5.8 MI N CISCO, Piatt, IL

Built 1978 Load: 33.7 t ADT: 50

ILL 10(FAP 721)

Over: W BR GOOSE CREEK

1.0 MI W OF DELAND, Piatt, IL

Built 1977 Load: 34.3 t ADT: 1,600

TR 56

Structurally Deficient

Over: STREAM

2.0 MI SW MONTICELLO, Piatt, IL

Built 1969 Load: 25.6 t ADT: 50

TR 27

Structurally Deficient

Over: MADDEN CREEK

1 MI S MANSFIELD, Piatt, IL

Built 1962 Load: 34.3 t ADT: 150

I-72 (EB)

Structurally Deficient

Over: Norfolk Southern Railway

N OF MONTICELLO, Piatt, IL

Built 1975 Load: 39.2 t ADT: 5,450

I-72 (WB)

Structurally Deficient

Over: Norfolk Southern Railway

N OF MONTICELLO, Piatt, IL

Built 1975 Load: 39.2 t ADT: 5,450

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