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)

FAS 551 CH 27 Dame

Good

Over: Spring Creek

3.1 Mi. NE Blue Moun, Macon, IL

Built 2020 Load: 39.2 t ADT: 175

FAS 549 (CH 20)

Good

Over: SOUTH FORK CREEK

.5 MI E WARRENSBURG, Macon, IL

Built 2002 Load: 39.9 t ADT: 1,350

FAS 1536 (IL 48)

Good

Over: CREEK

2 MI SW OF CISCO, Macon, IL

Built 2000 Load: 40.2 t ADT: 750

TR 29 SHELLABARGER

Good

Over: DITCH

1 MI. N WARRENSBURG, Macon, IL

Built 2019 Load: 40.5 t ADT: 25

FAU 7464 (IL 48)

Good

Over: STREAM

1 MI S OREANA, Macon, IL

Built 2013 Load: 40.8 t ADT: 3,300

FAU 7426 (TAYLOR R

Good

Over: WARD BRANCH

0.64 MI S OF IL 48, Macon, IL

Built 2020 Load: 40.8 t ADT: 1,500

TR 175A

Good

Over: LONG CREEK

1 MI NE LONG CREEK, Macon, IL

Built 2013 Load: 42.1 t ADT: 375

TR 90 (Bearsdale R

Good

Over: Lake Fork Creek

3.0 Mi. W Maroa, Macon, IL

Built 2021 Load: 43.1 t ADT: 50

TR 46

Good

Over: South Fork Creek

3.2 Mi. N Warrensbur, Macon, IL

Built 2017 Load: 43.4 t ADT: 50

TR 244A(STOCKS RD)

Good

Over: MARROWBONE CR TRIB

.8 MI N SHELBY CO LI, Macon, IL

Built 1984 Load: 43.7 t ADT: 25

TR 5 (SCHOOL RD)

Good

Over: STREAM

6.5 MI NW WARRENSBUR, Macon, IL

Built 2022 Load: 46.7 t ADT: 100

TR 30A(STRAWN RD)

Good

Over: WILLOW BRANCH

3.25 MI NE NIANTIC, Macon, IL

Built 2021 Load: 51.5 t ADT: 50

FAU 7374 (CENTER S

Good

Over: STEVENS CREEK

1.5 MI W OF FAU 7429, Macon, IL

Built 2021 Load: 51.5 t ADT: 550

US 51(FAP 322)

Good

Over: STEVENS CREEK

2.5 MI S OF MAROA, Macon, IL

Built 1971 Load: 52.2 t ADT: 12,000

MOUND RD(FAU 7359)

Good

Over: SPRING CREEK

EAST MOUND RD, Macon, IL

Built 1964 Load: 52.2 t ADT: 9,350

CH 18 (School Rd)

Good

Over: Ditch

4.4 Mi. NE Argenta, Macon, IL

Built 2020 Load: 52.2 t ADT: 100

TR 1A Lake Fork Rd

Good

Over: Ditch

5.2 Miles N Argenta, Macon, IL

Built 2020 Load: 52.2 t ADT: 25

FAS 548 (CH 38)

Good

Over: FRIENDS CREEK

4.9 ME NE ARGENTA, Macon, IL

Built 2022 Load: 56.1 t ADT: 250

Decatur Muni 2755

Good

Over: Creek

0.14 mi. E. IL 121, Macon, IL

Built 2015 Load: 62.2 t ADT: 200

MOUND RD(FAU 7359)

Good

Over: SPRING CREEK

N SIDE DECATUR, Macon, IL

Built 1964 Load: 67.7 t ADT: 13,700

TR 32(ARCHERY CLUB

Poor

Over: MOSQUITO CREEK

1.9 MI NE BLUE MOUND, Macon, IL

Built 1909 ADT: 25

TR 30(STRAWN RD)

Poor

Over: LAKE FORK CREEK

9.0 MI W MAROA, Macon, IL

Built 1976 ADT: 50

TR 56(GLASGOW RD)

Poor

Over: SOUTH FORK CREEK

3.0 MI N WARRENBURG, Macon, IL

Built 1975 Load: 10.7 t ADT: 75

TR 66(BAKER RD)

Poor

Over: MOSQUITO CREEK

1.6 MI SE OF BOODY, Macon, IL

Built 1957 Load: 17.8 t ADT: 50

CH 49(WALMSLEY RD)

Poor

Over: SAND CREEK

2.7 MI W MT ZION, Macon, IL

Built 1909 Load: 19.1 t ADT: 400

CH 19 EXTENSION IL

Poor

Over: WILLOW BRANCH

N EDGE OF NIANTIC, Macon, IL

Built 1978 Load: 20.4 t ADT: 700

FAS 554(CH 32)

Poor

Over: FINLEY CREEK

5.0 MI E OF MACON, Macon, IL

Built 1909 Load: 22.7 t ADT: 1,150

LONG CR RD(MS 5000

Poor

Over: LONG CREEK

CITY OF LONG CREEK, Macon, IL

Built 1969 Load: 25.3 t ADT: 1,250

FAU 7403(CH 30)

Poor

Over: FINLEY CREEK

IN MT ZION, Macon, IL

Built 1977 Load: 27.9 t ADT: 6,300

TR 253(DUMMERMUTH

Poor

Over: MOSQUITO CREEK

2 MI S OF BOODY, Macon, IL

Built 1909 Load: 28.2 t ADT: 50

CH 30(FAU 7403)

Poor

Over: SAND CREEK TRIB

1.5 MI E OF ELWIN, Macon, IL

Built 1986 Load: 29.2 t ADT: 4,550

CH 21(FAS 546)

Poor

Over: WILLOW BRANCH

3.9 MI SW WARRENSBRG, Macon, IL

Built 1926 Load: 29.5 t ADT: 250

TR 292(FRIEND'S CR

Poor

Over: FRIENDS CREEK DITCH

IN FRIENDS CREEK, Macon, IL

Built 1980 Load: 29.5 t ADT: 200

TR 25(E WISE RD)

Poor

Over: STEVENS CREEK

3 MI N FORSYTH, Macon, IL

Built 1977 Load: 30.1 t ADT: 75

CH 25(FAU 7454)

Poor

Over: SANGAMON RIVER

2.5 MI N OF OAKLEY, Macon, IL

Built 1981 Load: 30.8 t ADT: 1,300

FAS 644(CH 55)

Poor

Over: OVERFLOW OF SANGAMON

3.3 MI S NIANTIC, Macon, IL

Built 1979 Load: 31.4 t ADT: 550

Muni 6802 -Traughb

Poor

Over: FINLEY CREEK

1.5 MI S OF MT ZION, Macon, IL

Built 1981 Load: 31.4 t ADT: 150

FAS 546(CH 21)

Poor

Over: Trib N Fork Creek

6.8 MI W OF MAROA, Macon, IL

Built 1983 Load: 31.4 t ADT: 300

CH 18(SCHOOL RD)

Poor

Over: FRIENDS CREEK

1.5 MI N ARGENTA, Macon, IL

Built 1977 Load: 31.8 t ADT: 200

CH 18(SCHOOL RD)

Poor

Over: FRIENDS CREEK

2 MI N OF ARGENTA, Macon, IL

Built 1988 Load: 32.4 t ADT: 125

FAU 7406 (TR 217)

Poor

Over: Trib Big Creek

1 MI E MT ZION, Macon, IL

Built 2005 Load: 32.4 t ADT: 1,800

FAU 7431

Poor

Over: TRIB STEVENS CREEK

VILLAGE OF FORSYTH, Macon, IL

Built 2011 Load: 32.4 t ADT: 550

TR 251(HOPEWELL RD

Poor

Over: FINLEY CREEK

2.3 MI S MT ZION, Macon, IL

Built 1979 Load: 33.4 t ADT: 50

IL 105(FAP 741)

Poor

Over: LONG CREEK

4 MI E OF DECATUR, Macon, IL

Built 1961 Load: 33.7 t ADT: 2,100

TR 229(ZION CHAPEL

Poor

Over: SPRING CREEK

4.25 MI N BLUE MOUND, Macon, IL

Built 1980 Load: 34.7 t ADT: 100

TR 7(DUROC RD)

Poor

Over: STREAM

2.5 MI NW ARGENTA, Macon, IL

Built 1982 Load: 35.0 t ADT: 20

TR 34(LINCOLN MEMO

Poor

Over: WILLOW BRANCH

2.2 MI NW HARRISTOWN, Macon, IL

Built 1976 Load: 36.0 t ADT: 25

TR 92(WOODCOCK RD)

Poor

Over: WILLOW BRANCH

1.75 MI N OF CO LINE, Macon, IL

Built 2003 Load: 36.6 t ADT: 225

TR 109 A

Poor

Over: Trib Long Pt Slough

.5 MI E OF NIANTIC, Macon, IL

Built 2001 Load: 38.9 t ADT: 75

FAU 7454(CH 25)

Poor

Over: SANGAMON R OVERFLOW

3.1 MI N OF OAKLEY, Macon, IL

Built 1995 Load: 48.0 t ADT: 1,300

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