Macon County, IL

368 public highway bridges

Macon County Bridge Snapshot

Macon County, Illinois contains 368 public highway bridges in the FHWA National Bridge Inventory. Roughly 23.4% are rated “Good,” 44.3% “Fair,” 13% “Poor,” and 13% 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.

368

Total Bridges

23.4%

Good

13%

Poor

13%

Structurally Deficient

Condition Distribution

Good

23.4% (86)

Fair

44.3% (163)

Poor

13% (48)

SD

13% (48)

All Bridges (368)

Sort:

TR 23 A(NEWBURG RD

Over: TRIB TO FRIENDS CR

1.5 MI E OF ARGENTA, Macon, IL

Built 1999 Load: 32.4 t ADT: 10

TR 308 C

Over: STREAM

3.4 MI NE ARGENTA, Macon, IL

Built 2000 Load: 32.4 t ADT: 25

TR 44(WEST ST RD)

Over: POINT SLOUGH

3 MI S WARRENSBURG, Macon, IL

Built 2000 Load: 32.4 t ADT: 50

TR 73

Over: Tirib Long Pt Slough

2.5 MI NW OF NIANTIC, Macon, IL

Built 1999 Load: 32.4 t ADT: 25

TR 17(POLAND RD)

Over: SOUTH FORK CREEK

3.2 MI N WARRENSBURG, Macon, IL

Built 2002 Load: 32.4 t ADT: 25

CH 18

Over: DRAINAGE DITCH

6.1 MI SW OF MAROA, Macon, IL

Built 2002 Load: 32.4 t ADT: 125

CH 67(JACOBS RD)

Over: LONG GROVE CREEK

4 MI SE OF MACON, Macon, IL

Built 2002 Load: 32.4 t ADT: 125

FAS 548 (CH 58)

Over: LAKE FORK CREEK

1.25 MI W MAROA, Macon, IL

Built 2002 Load: 32.4 t ADT: 375

FAS 556(CH 28)

Over: TRIB TO SANGAMON RIV

3.7 MI NW BOODY, Macon, IL

Built 2003 Load: 32.4 t ADT: 450

CH 27 (FAS 551)

Over: TRIB TO SANGAMON

2.2 MI SW HARRISTOWN, Macon, IL

Built 2003 Load: 32.4 t ADT: 300

TR 215(ELWIN RD)

Over: SPRING CREEK

1 MI N OF BOODY, Macon, IL

Built 2004 Load: 32.4 t ADT: 100

TR 25 WISE ROAD

Over: SOUTH FORK CREEK

3.6 MI NW WARRENSBUR, Macon, IL

Built 2005 Load: 32.4 t ADT: 20

TR 54 (W WISE RD)

Over: DRAIN DITCH

4.3 MI NW WARRENSBUR, Macon, IL

Built 2006 Load: 32.4 t ADT: 20

FAU 7449 (CH 7)

Over: FINLEY CREEK

N MT ZION, Macon, IL

Built 2012 Load: 32.4 t ADT: 7,000

FAS 544/CH25

Over: STREAM

1 MI N ARGENTA, Macon, IL

Built 2012 Load: 32.4 t ADT: 600

FAS 456

Over: LAKE FORK CREEK

7 MI W MAROA, Macon, IL

Built 2013 Load: 32.4 t ADT: 300

CH 36(Baker Rd)

Over: Dry Creek

1.8 Mi. SW of Macon, Macon, IL

Built 2016 Load: 32.4 t ADT: 100

FAS 546(CH 21)

Over: ILLINI DRAIN DITCH

1 MI E HEMAN, Macon, IL

Built 1980 Load: 32.4 t ADT: 425

TR 65A

Over: STREAM

2 MI N OF OAKLEY, Macon, IL

Built 1992 Load: 32.4 t ADT: 125

TR 1A(LAKE FORK RD

Over: STREAM

5.3 MI NW OF ARGENTA, Macon, IL

Built 1991 Load: 32.4 t ADT: 75

TR 263

Over: FINLEY CREEK

5 MI E OF MACON, Macon, IL

Built 1993 Load: 32.4 t ADT: 50

FAU 7355 CH 24

Over: Lake Decatur Trib

4.3 Miles North East, Macon, IL

Built 1986 Load: 32.4 t ADT: 2,200

SEIBERLINGST(MS170

Over: MOSQUITO CREEK

E EDGE OF BLUE MOUND, Macon, IL

Built 1982 Load: 32.4 t ADT: 575

FAU 7437(ML KING D

Over: SPRING CREEK

N NE OF DECATUR, Macon, IL

Built 1994 Load: 32.4 t ADT: 7,100

BALTIMORE FAU7449

Over: BIG CREEK

1 MI N MT ZION, Macon, IL

Built 2012 Load: 32.4 t ADT: 6,750

TR 939-PARK DR

Over: STEVENS CREEK

FAIRVIEW PARK, Macon, IL

Built 2012 Load: 32.4 t ADT: 400

US 51 NB (FAP 710)

Over: LAKE DECATUR

IN DECATUR, Macon, IL

Built 1962 Load: 33.0 t ADT: 22,400

US 51 SB (FAP 710)

Over: LAKE DECATUR

IN DECATUR, Macon, IL

Built 1971 Load: 34.0 t ADT: 22,400

N MONROE ST(FAU743

Over: SPRING CREEK

N SIDE OF DECATUR, Macon, IL

Built 1969 Load: 34.7 t ADT: 8,650

TR 263(RIDLEN RD)

Over: WILLOW BRANCH

1.2 MI SE MACON, Macon, IL

Built 1976 Load: 34.7 t ADT: 350

W MAIN ST (FAU 738

Over: STEVENS CREEK

W EDGE OF DECATUR, Macon, IL

Built 1988 Load: 35.3 t ADT: 2,300

TR 259A(BETHEL RD)

Over: MOSQUITO CREEK

3 MI NE BLUE MOUND, Macon, IL

Built 1980 Load: 35.3 t ADT: 35

CH 41(WYCKLES RD)

Over: LAKE FORK CREEK

3 MI NE WARRENSBURG, Macon, IL

Built 1985 Load: 35.3 t ADT: 75

IL 48(FAU 7429)

Over: SANGAMON RIVER

0.5 MI N. OF ILL-105, Macon, IL

Built 1929 Load: 36.0 t ADT: 8,850

FAS 542 (SBI 2)

Over: LAKE FORK CREEK

.5 MI N OF MAROA, Macon, IL

Built 1980 Load: 36.0 t ADT: 675

TR 15A(MILLER RD)

Over: STREAM

1.5 MI NE ARGENTA, Macon, IL

Built 1984 Load: 36.0 t ADT: 75

FAU 7354(PERSHING

Over: SPRING CREEK

0.8 MI S BEARSDALE, Macon, IL

Built 2004 Load: 36.0 t ADT: 1,000

TR 30(STRAWN RD)

Over: DITCH

IL 121, Macon, IL

Built 1909 Load: 36.6 t ADT: 25

FAP 320 (IL 121)

Over: SOUTH FORK CREEK

1.5 MI W OF HEMAN, Macon, IL

Built 1999 Load: 36.9 t ADT: 3,750

TR 45(KIRBY RD)

Over: STREAM

2 MI SE OREANA, Macon, IL

Built 1981 Load: 36.9 t ADT: 800

FAP 320(IL 121 & 4

Over: SPRING CREEK

IN DECATUR, Macon, IL

Built 1971 Load: 37.3 t ADT: 17,900

US51(SB)(FAP 322)

Over: STEVENS CREEK

3 MI N OF FORSYTH, Macon, IL

Built 1982 Load: 37.3 t ADT: 12,000

US51(NB)(FAP 322)

Over: STEVENS CREEK

3 MI N OF FORSYTH, Macon, IL

Built 1983 Load: 37.3 t ADT: 12,000

TR 62(BANTAM RD)

Over: LAKE FORK CREEK

4.5 MI W MAROA, Macon, IL

Built 1976 Load: 37.6 t ADT: 50

MS 1800 C

Over: STREAM

W. BOILING SPRINGS, Macon, IL

Built 1982 Load: 37.9 t ADT: 550

IL 48(FAP 714)

Over: MOSQUITO CREEK

1.5 MI NE BLUE MOUND, Macon, IL

Built 1929 Load: 38.9 t ADT: 4,500

I-72 (EB)

Over: FRIENDS CREEK

1 MI E OF ARGENTA, Macon, IL

Built 1975 Load: 38.9 t ADT: 5,950

I-72 (WB)

Over: FRIENDS CREEK

1 MI E OF ARGENTA, Macon, IL

Built 1975 Load: 38.9 t ADT: 5,950

FAP 716 (IL 48)

Over: SPRING CREEK

N OF MCKINLEY AVE, Macon, IL

Built 2007 Load: 39.9 t ADT: 14,800

US 36(FAP 323)

Over: TRIB TO LONG CREEK

AT LONG CREEK, Macon, IL

Built 1928 Load: 40.5 t ADT: 6,400

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