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 11 B

Over: KICKAPOO CREEK

1 MI N OF ARGENTA, Macon, IL

Built 1998 Load: 32.4 t ADT: 50

TR 11 B

Over: TRIB TO FRIENDS CR

3.7 MI WNW ARGENTA, Macon, IL

Built 2000 Load: 32.4 t ADT: 25

TR 46

Over: DRAINAGE DITCH

2.4 MI N WARRENSBURG, Macon, IL

Built 1999 Load: 32.4 t ADT: 50

TR 1(HILVETY RD)

Over: LONG GROVE CREEK

3.1 MILE S MACON, Macon, IL

Built 2005 Load: 32.4 t ADT: 100

FAS 549A(CH20)

Over: SPRING CREEK

1.5 MI E OF FORSYTH, Macon, IL

Built 2004 Load: 32.4 t ADT: 2,300

TR 268(OAKLEY RD)

Over: LONG CREEK

3.8 MI NE OF CASNER, Macon, IL

Built 2004 Load: 32.4 t ADT: 75

FAS 1544 (CH 24)

Over: STREAM

1.7 MI NE OF OAKLEY, Macon, IL

Built 2010 Load: 32.4 t ADT: 1,350

CH 19 (FAS 555)

Over: WILLOW BRANCH

1.9 MI N NIANTIC, Macon, IL

Built 2007 Load: 32.4 t ADT: 300

TR 34

Over: SOUTH FORK CREEK

3.5 MI.NW WARRENSBUR, Macon, IL

Built 2005 Load: 32.4 t ADT: 50

TR 27A

Over: DITCH

2.2 MI NW WARRENSBUR, Macon, IL

Built 2006 Load: 32.4 t ADT: 50

FAS 548

Over: FRIENDS CREEK

4.2 MI NE ARGENTA, Macon, IL

Built 2005 Load: 32.4 t ADT: 225

TR 226

Over: LONG CREEK

NE MT ZION, Macon, IL

Built 2006 Load: 32.4 t ADT: 950

TR 255

Over: MOSQUITO CREEK

1.9 MI N BLUE MOUND, Macon, IL

Built 2006 Load: 32.4 t ADT: 50

FAS 548

Over: LAKE FORK CREEK

1.1 MI W MAROA, Macon, IL

Built 2010 Load: 32.4 t ADT: 375

TR 34 (LINCOLN MEM

Over: DRAINAGE DITCH

2.8 MI NW WARRENSBUR, Macon, IL

Built 2007 Load: 32.4 t ADT: 50

FAS 544A (CH 25)

Over: STREAM

2.7 MI N OAKLEY, Macon, IL

Built 2007 Load: 32.4 t ADT: 1,050

TR 56 (GLASGOW RD)

Over: DRAIN DITCH

1.5 MI N WARRENSBURG, Macon, IL

Built 2012 Load: 32.4 t ADT: 100

TR 23 (NEWBURG RD)

Over: FRIENDS CREEK

1.0 MI E ARGENTA, Macon, IL

Built 2008 Load: 32.4 t ADT: 25

TR 42BNEVADA RD

Over: SPRING CREEK

1 MI NW BOODY, Macon, IL

Built 2011 Load: 32.4 t ADT: 75

MUNI 0900(HARRYLAN

Over: STREAM

W EDGE MT ZION, Macon, IL

Built 2009 Load: 32.4 t ADT: 2,250

TR 52B

Over: DRAINAGE DITCH

0.75 N BOODY, Macon, IL

Built 2009 Load: 32.4 t ADT: 75

TR 256 FORT DANIEL

Over: BIG CREEK

2.7 MI NE MT ZION, Macon, IL

Built 2008 Load: 32.4 t ADT: 450

TR 153

Over: Trib Sangamon River

3.2 MI SE NIANTIC, Macon, IL

Built 2008 Load: 32.4 t ADT: 25

FAS 554 (CH 32)

Over: Trib Mosquito Creek

1.3 MI NE BLUE MOUND, Macon, IL

Built 2009 Load: 32.4 t ADT: 525

TR 265(KOSSIECK RD

Over: DRY BRANCH

3.5 MI SW OF MACON, Macon, IL

Built 2015 Load: 32.4 t ADT: 50

CH 29 (BOODY RD)

Over: MOSQUITO CREEK

3 MI NW OF MACON, Macon, IL

Built 2016 Load: 32.4 t ADT: 100

FAS 546/CH 21

Over: SOUTH FORK CREEK

2.8 MI NW WARRENSBUR, Macon, IL

Built 2014 Load: 32.4 t ADT: 400

FAU-7411

Over: Big Creek

S FORT DANIELS AREA, Macon, IL

Built 2017 Load: 32.4 t ADT: 625

FAU 7413

Over: Trib to Big Creek

2 Mi. SE Long Creek, Macon, IL

Built 2020 Load: 32.4 t ADT: 1,950

CANTRELL RD(FAU735

Over: STREAM

IN HARRISTOWN, Macon, IL

Built 1976 Load: 32.4 t ADT: 600

TR 55(CUNDIFF RD)

Over: REYNOLDS RUN

1.5 MI S OF OREANA, Macon, IL

Built 1985 Load: 32.4 t ADT: 550

TR 42

Over: STREAM

4 MI NE BLUE MOUND, Macon, IL

Built 1994 Load: 32.4 t ADT: 75

FAS 1538/WYCKLES R

Over: STREAM

3.5 Mi. SE Warr, Macon, IL

Built 2014 Load: 32.4 t ADT: 900

CH 54 (W Wise Road

Over: Drainage Ditch

2.2 Mi. N Warrensbur, Macon, IL

Built 2015 Load: 32.4 t ADT: 75

TR-42

Over: Stream

3.25 M NE Blue Mound, Macon, IL

Built 2017 Load: 32.4 t ADT: 100

FAS 554 CH 32

Over: Trib. Willow Branch

0.25 E. of Macon, Macon, IL

Built 2001 Load: 32.4 t ADT: 1,200

TAYLOR RD(FAU 7426

Over: MORRISON'S CREEK

.23 MI S OF GROVE RD, Macon, IL

Built 1985 Load: 32.4 t ADT: 525

TAYLOR RD(FAU 7426

Over: MORRISON'S CREEK

.18 MI S OF GROVE, Macon, IL

Built 1985 Load: 32.4 t ADT: 525

TAYLOR RD(FAU 7426

Over: MORRISON'S CREEK

.1 MI S OF GROVE RD, Macon, IL

Built 1985 Load: 32.4 t ADT: 525

FAU 7432

Over: STEVENS CREEK

.57 MI N OF MOUND RD, Macon, IL

Built 2010 Load: 32.4 t ADT: 4,800

FAU 7398/S SHORE D

Over: SAND CREEK ARM

1.22 MI E OF US 51, Macon, IL

Built 2013 Load: 32.4 t ADT: 2,800

FAP 320 (IL 121)

Over: DITCH

0.2 MI E OF LOGAN CO, Macon, IL

Built 2000 Load: 32.4 t ADT: 3,750

FAP 741/IL 105

Over: STREAM

0.36 E 70TH ST, Macon, IL

Built 2011 Load: 34.3 t ADT: 4,450

FAS 546/CH 21

Over: South Fork Creek

3 Mi. NW Warrensburg, Macon, IL

Built 2018 Load: 34.3 t ADT: 400

STAR RTE(MS8050)

Over: STREAM

E SIDE LK DECATUR, Macon, IL

Built 1940 Load: 34.7 t ADT: 200

TR 92

Over: DRY BRANCH CREEK

.14 MI. S US 51, Macon, IL

Built 2001 Load: 36.6 t ADT: 225

FAP 714(IL 48)

Over: STREAM

1 MI S OF BOODY, Macon, IL

Built 1991 Load: 37.3 t ADT: 4,500

FAP 320(IL 121)

Over: STREAM

3.5 MI NW OF DECATUR, Macon, IL

Built 1997 Load: 37.3 t ADT: 6,450

TR 65A

Over: STREAM

2.3 MI N OF OAKLEY, Macon, IL

Built 1993 Load: 37.3 t ADT: 125

FAU 7455 (KRUSE RD

Over: BIG CREEK

1.5 Mi. NE MT. ZION, Macon, IL

Built 2018 Load: 38.6 t ADT: 1,250

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