Sangamon County, IL

480 public highway bridges

Sangamon County Bridge Snapshot

Sangamon County, Illinois contains 480 public highway bridges in the FHWA National Bridge Inventory. Roughly 49.6% are rated “Good,” 25.2% “Fair,” 5.2% “Poor,” and 5.2% 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.

480

Total Bridges

49.6%

Good

5.2%

Poor

5.2%

Structurally Deficient

Condition Distribution

Good

49.6% (238)

Fair

25.2% (121)

Poor

5.2% (25)

SD

5.2% (25)

All Bridges (480)

Sort:

I-72 / US 36 (WB)

Over: WABASH AVE (OLD 36)

2.6M W IL4/VETERANS, Sangamon, IL

Built 1974 ADT: 9,800

I-72 / US 36 (EB)

Over: WABASH AVE (OLD 36)

2.6M W IL4/VETERANS, Sangamon, IL

Built 1974 ADT: 8,000

OAK CREST RD/ TR 1

Over: I-72

2.9M E I-55, Sangamon, IL

Built 1974 ADT: 14,500

OVERPASS RD / TR 4

Over: I-72 / US 36

1.4M E SANGAMON R., Sangamon, IL

Built 1974 ADT: 14,500

DAWSON RD / CH 16

Over: I-72 / US 36

4.5M E SANGAMON R., Sangamon, IL

Built 1975 ADT: 14,500

BUFFALO-MCHBG/ CH

Over: I-72 / US 36

1M S BUFFALO, Sangamon, IL

Built 1974 ADT: 14,300

LANESVILLE RD/ CH

Over: I-72 / US 36

3M E BUFFALO INTCHG, Sangamon, IL

Built 1975 ADT: 14,300

KENT FARM RD/ TR 5

Over: I-72 / US 36

3M W ILLIOPOLIS INT., Sangamon, IL

Built 1974 ADT: 14,300

CANTRELL RD/ FAS 6

Over: I-72 / US 36

1M W ILLIOPOLIS INT., Sangamon, IL

Built 1974 ADT: 14,300

S DYE RD / CH 33

Over: I-72 / US 36

ILLIOPOLIS INTERCHG, Sangamon, IL

Built 1974 ADT: 14,300

IL 123 / CH 2

Over: I-55

WILLIAMSVILLE INTCHG, Sangamon, IL

Built 1974 ADT: 32,400

CLEARLAKE AV/IL29&

Over: IC(I&M)RR / 19TH ST.

.72M E 9TH ST (BL55), Sangamon, IL

Built 1985 ADT: 275

MADISON ST / IL 97

Over: WALNUT STREET

1BL N JEFFERSON ST., Sangamon, IL

Built 1993 ADT: 10,200

CHATHAM ROAD

Over: I-72/US 36/NS RR

1.5M S WABASH AV, Sangamon, IL

Built 1991 ADT: 36,400

MADISON ST/IL 97(E

Over: JEFFERSON /IL 97(WB)

.7M W WALNUT/IL 29, Sangamon, IL

Built 1994 ADT: 11,600

MACARTHUR BLVD

Over: FAI 72

1.5 MI W I-55, Sangamon, IL

Built 2009 ADT: 40,900

CAMP BUTLER RD.

Over: OLD 36 (WB)

1.7M E IL 54, Sangamon, IL

Built 2006 ADT: 2,500

Pedestrian Bridge

Over: Clear Lake Av

0.28 mi E 11th St, Sangamon, IL

Built 1990 ADT: 17,000

INTERURBAN BIKE TR

Over: PLUMMER BLVD

CHATHAM, Sangamon, IL

Built 2002 ADT: 5,700

ILLINOIS CENTRAL R

Over: 6TH ST / BL 55

S 6TH&STANFORD-SPFLD, Sangamon, IL

Built 1949 ADT: 15,100

UNION PACIFIC RR

Over: 9TH ST. / BL 55

1500 N 9TH - SPFLD, Sangamon, IL

Built 1900 ADT: 9,450

UNION PACIFIC RR

Over: CAPITOL AVE

BETWEEN 3RD & 4TH ST, Sangamon, IL

Built 1903 ADT: 2,200

UNION PACIFIC RR

Over: OLD US 36

.5M W CH 18 - CURRAN, Sangamon, IL

Built 1900 ADT: 4,000

BURLINGTON NORTH.

Over: IL 104 (FAP 753)

3M E WAVERLY(E CH10), Sangamon, IL

Built 1913 ADT: 2,350

UNION PACIFIC RR

Over: DIRKSEN PKWY/FAP 668

.2M E PEORIA RD/BL55, Sangamon, IL

Built 1939 ADT: 13,200

SANGAMON VALLEY TR

Over: OLD JACK RD/FAS 613

1.3M W VETERANS PKWY, Sangamon, IL

Built 1900 ADT: 9,000

B&N RR

Over: FAS 621

P M S NEW BERLIN, Sangamon, IL

Built 1900 ADT: 1,250

ILLINOIS MIDLAND R

Over: SANGAMON AV /FAP 667

2BL E PEORIA RD (W), Sangamon, IL

Built 1900 ADT: 14,600

UNION PACIFIC

Over: SANGAMON AV /FAP 667

2BL E PEORIA RD (E), Sangamon, IL

Built 1900 ADT: 14,600

IC&G RR

Over: TR 110

3 M NE LOAMI, Sangamon, IL

Built 1906 ADT: 175

C&NW RR

Over: TR 164

1.8 M S CURRAN, Sangamon, IL

Built 1900 ADT: 250

UP RR

Over: COCKRELL LN

SW OF SPFLD, Sangamon, IL

Built 1900 ADT: 3,900

IC&G RR

Over: TR 464

1 MI E BARCLAY, Sangamon, IL

Built 1900 ADT: 100

ILLINOIS CENTRAL R

Over: 4TH STREET

.36M S ILES - SPFLD, Sangamon, IL

Built 1900 ADT: 4,100

SANGAMON VALLEY TR

Over: IL 97/JEFFERSON ST

.5M W IL4/VET. PKWY, Sangamon, IL

Built 1917 ADT: 8,500

IC&G RR

Over: FAU-8054 HAZEL DELL

.32MI-W-OF-MILAN DR., Sangamon, IL

Built 1925 ADT: 4,100

NORFOLK SOUTHERN R

Over: COOK ST. / FAU 7985

1BL E 9TH ST - SPFLD, Sangamon, IL

Built 1988 ADT: 6,500

ILLINOIS&MIDLAND R

Over: PEORIA RD / BL 55

.06M W VETERANS PKWY, Sangamon, IL

Built 1995 ADT: 15,400

UNION PACIFIC RR

Over: DODGE ST. (FAU 7973)

BETW 3RD ST & 4TH ST, Sangamon, IL

Built 1903 ADT: 550

UPRR

Over: PLUMMER BLVD

1.1MI E IL 4/CHATHAM, Sangamon, IL

Built 2000 ADT: 5,700

UNION PACIFIC RR

Over: MEREDITH DRIVE

E OF BL55 IN SHERMAN, Sangamon, IL

Built 2005 ADT: 2,800

NORFOLK SOUTHERN R

Over: SOUTH GRAND AVE

E OF 9TH ST - SPFLD, Sangamon, IL

Built 1940 ADT: 10,100

MUN 6000 (Oak St)

Over: UPRR & Elm St

SW edge Williamsvill, Sangamon, IL

Built 2021 ADT: 450

NSRR

Over: 5th St

0.45 mi N Stanford, Sangamon, IL

Built 2022 ADT: 12,700

UPRR

Over: 6th St

0.56 mi N Stanford, Sangamon, IL

Built 2022 ADT: 13,000

NSRR

Over: 6th St

0.56 mi N Stanford, Sangamon, IL

Built 2022 ADT: 13,000

TR 355

Over: BRUSH CREEK

3.5 MI N OF PAWNEE, Sangamon, IL

Built 1956 Load: 9.4 t ADT: 75

COUNTY HWY 45

Over: JOHNS CREEK

3.0 N OF LOWDER, Sangamon, IL

Built 1939 Load: 9.7 t ADT: 175

TR 64 (12W)

Over: LICK CREEK

1.0 W OF LOAMI, Sangamon, IL

Built 1956 Load: 12.6 t ADT: 100

COUNTY HWY 40

Over: LICK CREEK

3.0 S OF NEW BERLIN, Sangamon, IL

Built 1947 Load: 14.9 t ADT: 250

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

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