McDonough County, IL

210 public highway bridges

McDonough County Bridge Snapshot

McDonough County, Illinois contains 210 public highway bridges in the FHWA National Bridge Inventory. Roughly 51.9% are rated “Good,” 37.6% “Fair,” 6.2% “Poor,” and 6.2% 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.

210

Total Bridges

51.9%

Good

6.2%

Poor

6.2%

Structurally Deficient

Condition Distribution

Good

51.9% (109)

Fair

37.6% (79)

Poor

6.2% (13)

SD

6.2% (13)

All Bridges (210)

Sort:

US 136EB/WB

Over: IL 336

app 2mi w of Macomb, McDonough, IL

Built 2013 ADT: 1,600

ADAMS ST

Over: IL 336

1 Mi N. US 136, McDonough, IL

Built 2012 ADT: 1,600

IL 336

Over: CH 14

2.06MI N US 136, McDonough, IL

Built 2016 ADT: 475

TOWNSHIP RD 950E

Over: IL 336

2.92MI N of US 136, McDonough, IL

Built 2015 ADT: 1,600

SPRING LAKE RD/CH

Over: IL 336

2.06MI W of US 67, McDonough, IL

Built 2016 ADT: 1,600

TOWNSHIP RD 1100E

Over: IL 336

1.08MI W of US 67, McDonough, IL

Built 2015 ADT: 1,600

BNSF RR

Over: IL 336 NB & SB

SW MACOMB, McDonough, IL

Built 2007 ADT: 3,800

BNSF RR

Over: IL 336 RP 7.57

SW MACOMB, McDonough, IL

Built 2007 ADT: 1,250

BNSF RR

Over: IL 336 East Ramp

SW OF MACOMB, McDonough, IL

Built 2008 ADT: 1,300

TR 62

Over: BAPIST CREEK

NW-4-T6NR4W, McDonough, IL

Built 1921 Load: 5.8 t ADT: 400

TR 191

Over: CEDAR CREEK

CTR-6-T5NR4W, McDonough, IL

Built 1900 Load: 5.8 t ADT: 10

TR 219

Over: TROUBLESOME CREEK

CTR-10-T5NR2W, McDonough, IL

Built 1959 Load: 13.6 t ADT: 75

FAS 417 - CH 11

Over: LAHARPE CREEK

NE-29-T7NR4W, McDonough, IL

Built 1921 Load: 17.5 t ADT: 350

TR 398

Over: DRONNING FORK

NW-32-T7NR1W, McDonough, IL

Built 1980 Load: 17.5 t ADT: 50

TR 206

Over: GRINDSTONE CREEK

E.CTR-29-T4NR3W, McDonough, IL

Built 1920 Load: 17.5 t ADT: 50

TR 430

Over: WOLFDEN CR

W.CTR-26-T4NR1W, McDonough, IL

Built 1935 Load: 17.5 t ADT: 50

FAS 1434 - CH 11

Over: E FORK LAMOINE RIVER

N.CTR-15-T5NR4W, McDonough, IL

Built 1953 Load: 18.8 t ADT: 450

FAS 443 - CH 16

Over: CAMP CREEK

W.CTR-6-T4NR2W, McDonough, IL

Built 1949 Load: 20.1 t ADT: 850

TR 350

Over: TROUBLESOME CREEK

NE-10-T5NR2W, McDonough, IL

Built 1963 Load: 20.7 t ADT: 100

TR 406

Over: KEPPLE CREEK

NW-16-T6NR1W, McDonough, IL

Built 1900 Load: 21.4 t ADT: 75

TR 271

Over: CAMP CREEK

CTR-22-T5NR1W, McDonough, IL

Built 1957 Load: 22.4 t ADT: 25

FAS 1438-CH 6

Over: BR SPRING CR

W-8-T6NR3W, McDonough, IL

Built 1942 Load: 24.3 t ADT: 150

CH 18

Over: KILLJORDAN CREEK

S.CTR-10-T5NR3W, McDonough, IL

Built 1939 Load: 24.3 t ADT: 375

CH 18

Over: KILLJORDAN CREEK

W.CTR-22-T5NR3W, McDonough, IL

Built 1943 Load: 24.3 t ADT: 150

CH 17

Over: CARTER CR

SW-18-T4NR1W, McDonough, IL

Built 1955 Load: 24.3 t ADT: 50

FAS 1438-CH 6

Over: SPRING CR

S.CTR-5-T6NR3W, McDonough, IL

Built 1930 Load: 24.3 t ADT: 100

TR-418

Over: Drowning Fork

SE-21-T7NR1W, McDonough, IL

Built 1956 Load: 24.3 t ADT: 325

TR 226

Over: KILJORDAN CR

S.CTR-9-T5NR3W, McDonough, IL

Built 1910 Load: 24.3 t ADT: 50

TR 200

Over: BR TROUBLESOME

S.CTR-29-T5NR3W, McDonough, IL

Built 1930 Load: 24.3 t ADT: 50

FAS 1438 - CH 14

Over: E FORK LAMOINE RIVER

CTR-34-T6NR3W, McDonough, IL

Built 1959 Load: 25.3 t ADT: 900

FAS 1437 - CH 2

Over: E FORK LAMOINE RIVER

NW-13-T6NR2W, McDonough, IL

Built 1972 Load: 25.6 t ADT: 150

FAS 441 - CH 26

Over: E FORK LAMOINE RIVER

NE-34-T4NR4W, McDonough, IL

Built 1966 Load: 28.8 t ADT: 175

TR 203

Over: TROUBLESOME CREEK

S.CTR-2-T5NR2W, McDonough, IL

Built 1966 Load: 29.2 t ADT: 100

TR 352

Over: N FORK CROOKED CREEK

SW-26-T7NR2W, McDonough, IL

Built 1979 Load: 31.8 t ADT: 50

FAS 1441 - CH 22

Over: CAMP CREEK

N.CTR-34-T5NR2W, McDonough, IL

Built 1981 Load: 32.4 t ADT: 350

FAU 6938 (CH 20)

Over: SPRING CR

NW-22-T6NR3W, McDonough, IL

Built 1983 Load: 32.4 t ADT: 325

WEAVER RD-TR 3A

Over: DROWNING FORK CREEK

NW-3-T7NR1W, McDonough, IL

Built 1987 Load: 32.4 t ADT: 75

TR 31

Over: DROWNING FORK

N.CTR-22-T7NR1W, McDonough, IL

Built 1976 Load: 32.4 t ADT: 275

TR 7

Over: N.F. CROOKED CREEK

SW-2-T7NR2W, McDonough, IL

Built 1999 Load: 32.4 t ADT: 200

TR 268

Over: E FORK LITTLE CREEK

W.CTR-1-T7NR3W, McDonough, IL

Built 1980 Load: 32.4 t ADT: 20

TR 34

Over: LAHARPE CREEK

NE-30-T7NR4W, McDonough, IL

Built 1981 Load: 32.4 t ADT: 50

TR 350

Over: E FORK LAMOINE RIVER

NE-22-T6NR2W, McDonough, IL

Built 1978 Load: 32.4 t ADT: 75

TR 312

Over: E FORK LAMOINE RIVER

NW-21-T6NR2W, McDonough, IL

Built 1986 Load: 32.4 t ADT: 525

TR 95

Over: DROWNING FORK

SW-5-T6NR1W, McDonough, IL

Built 1978 Load: 32.4 t ADT: 50

TR 77A

Over: DROWNING FORK CREEK

NW-5-T6NR1W, McDonough, IL

Built 1984 Load: 32.4 t ADT: 75

TR 302

Over: CAMP CR

S.CTR-32-T5NR2W, McDonough, IL

Built 1983 Load: 32.4 t ADT: 75

TR 324

Over: CAMP CREEK

S. CTR-33-T5NR2W, McDonough, IL

Built 1996 Load: 32.4 t ADT: 50

TR 253

Over: KILLJORDAN CR

S.CTR-16-T5NR3W, McDonough, IL

Built 1999 Load: 32.4 t ADT: 125

TR 58

Over: LAMOINE RIVER

CTR-21-T4NR4W, McDonough, IL

Built 1980 Load: 32.4 t ADT: 75

TR 232

Over: GRINDSTONE CREEK

W.CTR-27-T4NR3W, McDonough, IL

Built 1978 Load: 32.4 t ADT: 75

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 6, 2026