Madison County, IL

543 public highway bridges

Madison County Bridge Snapshot

Madison County, Illinois contains 543 public highway bridges in the FHWA National Bridge Inventory. Roughly 36.1% are rated “Good,” 28.7% “Fair,” 6.4% “Poor,” and 6.4% 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.

543

Total Bridges

36.1%

Good

6.4%

Poor

6.4%

Structurally Deficient

Condition Distribution

Good

36.1% (196)

Fair

28.7% (156)

Poor

6.4% (35)

SD

6.4% (35)

All Bridges (543)

Sort:

IL 255 SB (FAP310S

Over: NEW POAG RD/LEVEE RD

2.70 MI NORTH OF 270, Madison, IL

Built 1995 ADT: 5,500

IL 255 NB (FAP 310

Over: WAGON WHEEL ROXANA

.03 W. OF OLD WANDA, Madison, IL

Built 1995 ADT: 800

IL 255 SB (FAP 310

Over: WAGON WHEEL ROXANA

.04 W. OF OLD WANDA, Madison, IL

Built 1995 ADT: 800

IL 255 NB (FAP310N

Over: MADISON AVE/FAU 8975

1/4 M W OF S.ROXANA, Madison, IL

Built 1995 ADT: 3,950

IL 255 SB (FAP310S

Over: MADISON AVE/FAU8975

1/4 MI W S. ROXANA, Madison, IL

Built 1995 ADT: 3,950

IL 255 NB (FAP310N

Over: FAP 789 IL 143

IN ROXANNA, Madison, IL

Built 1995 ADT: 11,700

IL 255 SB (FAP310S

Over: FAP 789 IL 143

IN ROXANNA, Madison, IL

Built 1995 ADT: 11,700

ROCK HILL RD FAU89

Over: FAP 310

S OF 111, Madison, IL

Built 2001 ADT: 23,000

IL 255 NB (FAP 310

Over: IL 111

N OF IL 143, Madison, IL

Built 2001 ADT: 10,450

IL 255 SB (FAP 310

Over: IL 111

N OF IL 143, Madison, IL

Built 2001 ADT: 9,450

AIRLINE DR FAU 896

Over: IL 255 - FAP 310

.95MI SW IL 140, Madison, IL

Built 2005 ADT: 20,200

BENDER AVE TR 88C

Over: FAP 310

SOUTH OF 111/140, Madison, IL

Built 2001 ADT: 20,200

IL 255 (FAP 310)

Over: IL 140

BETHALTO, Madison, IL

Built 2005 ADT: 14,800

CULP LANE

Over: IL 255 - FAP 310

1.57 MI E FOSTERBURG, Madison, IL

Built 2004 ADT: 16,300

IL 255 NB (FAP310N

Over: FOSTERBURG RD

2.14MI N OF IL 140, Madison, IL

Built 2004 ADT: 6,300

IL 255 SB (FAP310S

Over: FOSTERBURG RD

2.13MI N OF IL 140, Madison, IL

Built 2004 ADT: 6,300

WOOD STATION RD TR

Over: IL 255 - FAP 310

1 MILE N OF ALTON, Madison, IL

Built 2005 ADT: 14,900

IL 255 NB (FAP310N

Over: FAS 1765 SEMINARY RD

1.5MI S SEILER RD, Madison, IL

Built 2006 ADT: 5,300

IL 255 SB (FAP310S

Over: FAS 1765 SEMINARY RD

1.5MI S SEILER RD, Madison, IL

Built 2006 ADT: 5,300

WENZEL RD MSS 6925

Over: IL 255 FAP 310

1.1MI NW SEMINARY RD, Madison, IL

Built 2010 ADT: 13,600

IL 255 NB

Over: HUMBERT RD (CH 4)

2.8MI W OF SEMINARY, Madison, IL

Built 2012 ADT: 9,150

IL 255 SB

Over: HUMBERT RD (CH 4)

2.8MI W OF SEMINARY, Madison, IL

Built 2012 ADT: 9,150

STUTZ LN FAU 9009

Over: IL 255 FAP 310

1.6 MI N OF IL 140, Madison, IL

Built 2005 ADT: 16,300

IL 159 NB AND SB

Over: FAI 270

INT. OF 159 AND I270, Madison, IL

Built 2001 ADT: 30,200

IL 255 NB - FAP 31

Over: IL 111/IL 267

at GODFREY, Madison, IL

Built 2012 ADT: 8,000

IL 255 SB - FAP 31

Over: IL 111/IL 267

at GODFREY, Madison, IL

Built 2012 ADT: 8,000

US 67 NB

Over: IL 255 NB & SB

at GODFREY, Madison, IL

Built 2012 ADT: 6,500

IL 162

Over: FAI 55/70

W. OF TROY, Madison, IL

Built 2012 ADT: 46,100

ALBY ST/ FAU 8988

Over: US ROUTE 67

S BELTLINE ALTON, Madison, IL

Built 1961 ADT: 9,600

ELM ST./ FAU 8989

Over: US ROUTE 67

ALTON-W OF CENTRAL A, Madison, IL

Built 1946 ADT: 11,600

ALTON PEDESTRIAN

Over: LANDMARKS BLVD

0.11 W HENRY ST, Madison, IL

Built 2010 ADT: 16,000

Pontoon Road

Over: IL Rte 203

2.5 miles S of I-270, Madison, IL

Built 2010 ADT: 13,900

UPRR(KCSRR) spur

Over: IL 3 (Broadway)

NE OF MCKINLEY BR, Madison, IL

Built 1969 ADT: 8,200

UPRR(KCSRR) Mainli

Over: IL 3 (Broadway)

NE OF MCKINLEY BR, Madison, IL

Built 1969 ADT: 8,200

UPRR(KCSRR) Mainli

Over: IL 3 (Broadway)

NE OF MCKINLEY BR, Madison, IL

Built 1969 ADT: 8,200

N&W RR 2-MAINLINE

Over: IL 3/Broadway/Venice

NE OF MCKINLEY BR, Madison, IL

Built 1969 ADT: 8,200

ITRR

Over: FAP594/IL203

SO OF MADISON, Madison, IL

Built 1935 ADT: 13,000

CONRAIL

Over: IL 143

1 MI E OF WANDA, Madison, IL

Built 1937 ADT: 10,500

ILL TERM RR

Over: FAU 8885 SIU N ENT.

.25 S ILL 143, Madison, IL

Built 1969 ADT: 5,550

TRRA RR

Over: ILL 3

.25 N ST CLAIR CO L, Madison, IL

Built 1919 ADT: 4,500

CONRAIL

Over: CH 1

0.05 MI E OF WANDA, Madison, IL

Built 1900 ADT: 1,400

CONRAIL

Over: FAS 772

E OF COLLINSVILLE, Madison, IL

Built 1900 ADT: 950

MISSOURI PACIFIC

Over: CH 51

0.5 MI SW OF WORDEN, Madison, IL

Built 1952 ADT: 1,300

UNION PACIFIC RR

Over: CH 19 WANDA ROAD

1MI SOUTH OF WANDA, Madison, IL

Built 1998 ADT: 1,350

MISSOURI PACIFIC

Over: TR 121A

1.0 MI S WORDEN, Madison, IL

Built 1952 ADT: 50

IT RR

Over: TR 146D

E. OF ENT. TO S.I.U., Madison, IL

Built 1900 ADT: 75

CONRAIL

Over: TR 194

2 MI E COLLINSVILLE, Madison, IL

Built 1900 ADT: 400

CONRAIL

Over: TR 202

3.25 MI E COLLINSVIL, Madison, IL

Built 1900 ADT: 100

CONRAIL

Over: TR 230

2.0 MI S TROY, Madison, IL

Built 1900 ADT: 300

MO PAC RR

Over: TR 246

S OF WORDEN, Madison, IL

Built 1952 ADT: 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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026