Putnam County, IL

50 public highway bridges

Putnam County Bridge Snapshot

Putnam County, Illinois contains 50 public highway bridges in the FHWA National Bridge Inventory. Roughly 26% are rated “Good,” 64% “Fair,” 10% “Poor,” and 10% 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.

50

Total Bridges

26%

Good

10%

Poor

10%

Structurally Deficient

Condition Distribution

Good

26% (13)

Fair

64% (32)

Poor

10% (5)

SD

10% (5)

All Bridges (50)

Sort:

TR 18

Over: RI RR

850N, 350E, Putnam, IL

Built 1988 Load: 15.6 t ADT: 10

DIVISION ST/GRANVI

Over: ALL FORKS CREEK

116 FT S HENNEPIN ST, Putnam, IL

Built 1900 Load: 19.4 t ADT: 350

TR 85

Over: STREAM

135N, 1540E, Putnam, IL

Built 1967 Load: 24.3 t ADT: 25

ILL 26

Over: STREAM

6.88 MI S OF ILL 71, Putnam, IL

Built 1956 Load: 25.3 t ADT: 800

ILL 29

Over: ILL RIVER TRIB

3.17 MI N OF ILL 18, Putnam, IL

Built 1960 Load: 31.8 t ADT: 3,200

TR2

Over: CROW CREEK

310N, 50E, Putnam, IL

Built 1981 Load: 32.4 t ADT: 50

TR 82

Over: ALLFORKS CREEK

1220N, 1175E, Putnam, IL

Built 1981 Load: 32.4 t ADT: 150

TR 74

Over: ALLFORKS CREEK

1220N, 1140E, Putnam, IL

Built 1983 Load: 32.4 t ADT: 100

TR 65

Over: TRIBUTARY TO CROW CR

400N 200E, Putnam, IL

Built 1984 Load: 32.4 t ADT: 25

TR 98

Over: LITTLE SANDY CR

1450E 130N, Putnam, IL

Built 1985 Load: 32.4 t ADT: 25

TR 94A

Over: ALLFORKS CREEK

1300E 1180N, Putnam, IL

Built 1985 Load: 32.4 t ADT: 100

CH 4

Over: CLEAR CREEK

625N, 1200E, Putnam, IL

Built 1986 Load: 32.4 t ADT: 125

TR 73

Over: CLEAR CREEK

300 N, 1060E, Putnam, IL

Built 1991 Load: 32.4 t ADT: 25

TR 7

Over: ALLFORKS CREEK

1250N, 950E, Putnam, IL

Built 1994 Load: 32.4 t ADT: 200

TR 75

Over: TRIB CLEAR CREEK

2.5 MI SW MCNABB, Putnam, IL

Built 1999 Load: 32.4 t ADT: 75

TR 36A

Over: COFFEE CREEK

NE1/4-11-T32NR2W, Putnam, IL

Built 2011 Load: 32.4 t ADT: 1,500

CH 5

Over: CLEAR CR

305N, 1150E, Putnam, IL

Built 1978 Load: 34.3 t ADT: 100

OLD ILL 29

Over: SENACHWINE CREEK

660N, 325E, Putnam, IL

Built 1920 Load: 36.3 t ADT: 550

BOAT CLUB ROAD

Over: STREAM

.01 MI E OF IL89, Putnam, IL

Built 2001 Load: 36.3 t ADT: 100

IL 26/FAS 2370

Over: CLEAR CREEK (OVRFLW)

8.20 MI S OF IL 71, Putnam, IL

Built 2001 Load: 37.6 t ADT: 800

IL 18

Over: LITTLE SANDY CREEK

50FT W of IL 89, Putnam, IL

Built 2005 Load: 37.9 t ADT: 2,100

IL 89

Over: UNNAMED STREAM

1.65 MILE S OF US 6, Putnam, IL

Built 2001 Load: 38.9 t ADT: 5,450

IL 26

Over: STREAM

0.5 mi n of IL 18, Putnam, IL

Built 1993 Load: 39.2 t ADT: 800

TR 20

Over: SENACHWINE LAKE TRIB

425N, 395E, Putnam, IL

Built 1955 Load: 39.5 t ADT: 50

ILL 71

Over: COFFEE CREEK

0.6mi E of IL 26, Putnam, IL

Built 1993 Load: 41.5 t ADT: 3,400

TR 2 A

Over: SANDY CREEK

140N, 1600E, Putnam, IL

Built 1940 Load: 42.4 t ADT: 50

IL 26/FAS 2370

Over: TRIB TO ILL RIVER

3.76 MI S OF IL 71, Putnam, IL

Built 2001 Load: 45.0 t ADT: 800

IL 26/FAS 2370

Over: CLEAR CREEK

7.95 MI S OF IL 71, Putnam, IL

Built 2001 Load: 48.9 t ADT: 800

CH 10

Over: COFFEE CR

970N, 780E, Putnam, IL

Built 1939 Load: 50.9 t ADT: 225

IL 89 (FAP 698)

Over: LITTLE SANDY CREEK

0.05 MI N OF IL 18, Putnam, IL

Built 2001 Load: 58.3 t ADT: 1,550

HENNEPIN STREET

Over: ALL FORKS

1100N, 1170E, Putnam, IL

Built 1940 Load: 58.6 t ADT: 650

IL 26

Over: COFFEE CREEK

1.21 MI S OF IL 71, Putnam, IL

Built 2009 Load: 70.0 t ADT: 1,000

TR 55A

Over: BR CLEAR CREEK

600N, 1210E, Putnam, IL

Built 1987 Load: 32.4 t ADT: 75

TR 47 A

Over: SENACHWINE CR.

670 N, 235 E, Putnam, IL

Built 1991 Load: 32.4 t ADT: 550

TR 75

Over: STREAM

2.5MI NNE MAGNOLIA, Putnam, IL

Built 1996 Load: 32.4 t ADT: 50

ILL 89

Over: ALLFORKS CREEK NORTH

1.2 MI N OF IL 71, Putnam, IL

Built 2012 Load: 34.0 t ADT: 4,100

CH 11(FAS 254)

Over: CLEAR CREEK

NE-9-T31NR1W, Putnam, IL

Built 2008 Load: 35.3 t ADT: 700

IL 71

Over: INTERMITTENT STREAM

3.18 MI W OF IL 89, Putnam, IL

Built 2007 Load: 35.6 t ADT: 4,100

ILL 89

Over: ALLFORKS CREEK SOUTH

1 MI N OF IL 71, Putnam, IL

Built 2012 Load: 43.1 t ADT: 4,100

ILL 71

Over: DRAINAGE DITCH

1.14 MI W OF ILL 89, Putnam, IL

Built 2015 Load: 43.7 t ADT: 4,700

ILL 29

Over: SENACHWINE CR TRIB

1 MI N OF PUTNAM, Putnam, IL

Built 1963 Load: 44.4 t ADT: 3,200

FAS 1254-CH 16

Over: ILL RIVER TRIB

1360N, 1415E, Putnam, IL

Built 2020 Load: 46.7 t ADT: 3,000

TR 36

Over: COFFEE CREEK

1055N, 875E, Putnam, IL

Built 2022 Load: 47.6 t ADT: 100

ILL 71

Over: COFFEE CREEK

5.14 MI W OF ILL 89, Putnam, IL

Built 1977 Load: 51.2 t ADT: 3,600

ILL 18

Over: DRAINAGE DITCH

1.45 MI E OF ILL 26, Putnam, IL

Built 1979 Load: 67.7 t ADT: 2,100

ILL 29

Over: SENACHWINE CREEK

1.25 MI N OF PUTNAM, Putnam, IL

Built 1962 Load: 27.9 t ADT: 3,200

ILL 89

Over: CLEAR CREEK

1.39 MI N OF ILL 18, Putnam, IL

Built 1928 Load: 30.8 t ADT: 1,550

ILL 89

Over: CLEAR CREEK TRIB

2.79 MI N OF ILL 18, Putnam, IL

Built 1928 Load: 31.8 t ADT: 1,700

ILL 26/FAS 2370

Structurally Deficient

Over: DRAINAGE DITCH

4.75 MI S OF ILL 71, Putnam, IL

Built 1956 Load: 29.8 t ADT: 800

ILL 18

Structurally Deficient

Over: DRAINAGE DITCH

0.65 MI E OF ILL 26, Putnam, IL

Built 1932 Load: 37.9 t ADT: 2,100

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