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)

IL 29 (WALNUT ST R

Fair

Over: SANGAMON RIVER

2.6M N IL 4/VETERANS, Sangamon, IL

Built 1997 Load: 43.1 t ADT: 6,950

TR 296 2E

Fair

Over: HENKLE CREEK

1.5 MI SE OF PAWNEE, Sangamon, IL

Built 1900 Load: 43.4 t ADT: 50

FAP 671

Fair

Over: SPRING CREEK

.48MI E OF WALNUT ST, Sangamon, IL

Built 1975 Load: 45.4 t ADT: 5,300

TR 15 (9N)

Fair

Over: FANCY CREEK

1.5 SW WILLIAMSVILLE, Sangamon, IL

Built 1900 Load: 47.6 t ADT: 175

VETERANS/IL 4 (NB)

Fair

Over: SPRING CREEK

.27M S JEFFRSN/IL125, Sangamon, IL

Built 1984 Load: 48.6 t ADT: 22,100

OLD US 36

Fair

Over: SANGAMON RIVER

SW EDGE RIVERTON, Sangamon, IL

Built 1956 Load: 49.6 t ADT: 2,500

I-72 / US 36

Fair

Over: CLEAR CREEK TRIB

2.6M E BUFFALO INTCH, Sangamon, IL

Built 1975 Load: 49.9 t ADT: 14,300

IL 29 (NB)

Fair

Over: S FK SANGAMON RIVER

2.4M SE I-55 INTCHG, Sangamon, IL

Built 1963 Load: 51.2 t ADT: 13,500

IL 4

Fair

Over: PANTHER CREEK

3.1M N IL 104-AUBURN, Sangamon, IL

Built 2002 Load: 51.2 t ADT: 8,950

I-55 (SB)

Fair

Over: LAKE SPRINGFIELD

3M S I-72, Sangamon, IL

Built 2001 Load: 53.1 t ADT: 21,900

I-55 (NB)

Fair

Over: LAKE SPRINGFIELD

3M S I-72, Sangamon, IL

Built 2002 Load: 53.1 t ADT: 21,900

IL 29 (SB)

Fair

Over: S FK SANGAMON RIVER

2.4M SE I-55 INTCHG, Sangamon, IL

Built 1928 Load: 53.8 t ADT: 13,500

I-55 W FR (PALM RD

Fair

Over: ILLINOIS CENTRAL RR

.9M N GLENARM INTCHG, Sangamon, IL

Built 2011 Load: 54.4 t ADT: 1,200

IL 4 (VETERANS PKW

Fair

Over: SUGAR CREEK

.07 M W PEORIA RD, Sangamon, IL

Built 1995 Load: 54.4 t ADT: 12,400

IL 29

Fair

Over: CANTRALL CREEK

.76M N ANDREW RD., Sangamon, IL

Built 1993 Load: 57.7 t ADT: 6,250

EAST LAKE SHORE DR

Fair

Over: ILLINOIS CENTRAL RR

.6M E I-55, Sangamon, IL

Built 1998 Load: 61.6 t ADT: 2,500

I-72 / US 36

Fair

Over: LONG PT. SLOUGH TRIB

1.1M E ILLIOPLIS INT, Sangamon, IL

Built 1975 Load: 97.2 t ADT: 14,500

FAU 8003 LONG BAY

Good

Over: LAKE SPFLD

SE PART OF SPFLD, Sangamon, IL

Built 1933 Load: 16.5 t ADT: 1,850

TR 465 18S

Good

Over: CLEAR CREEK

3.5 SE OF PAWNEE, Sangamon, IL

Built 1965 Load: 21.4 t ADT: 25

TR 110 9 W

Good

Over: SAMPSON CREEK

2.5 NE OF LOAMI, Sangamon, IL

Built 1967 Load: 22.0 t ADT: 175

TR 514 (15E)

Good

Over: CLEAR CREEK

1.0 W OF LANESVILLE, Sangamon, IL

Built 1969 Load: 22.7 t ADT: 50

GORDON DRIVE

Good

Over: GRINDSTONE CR

SE CHATHAM, Sangamon, IL

Built 1969 Load: 22.7 t ADT: 3,600

TR 249

Good

Over: LITTLE SPRING CREEK

1.0 MI N CURRAN, Sangamon, IL

Built 1900 Load: 23.3 t ADT: 1,050

TR 157 2.5N

Good

Over: WILLOW BRANCH

1.0 S OF ILLIOPOLIS, Sangamon, IL

Built 1966 Load: 23.3 t ADT: 10

TR 534

Good

Over: HUNTER SLOUGH

4.0 N LANESVILLE, Sangamon, IL

Built 1979 Load: 24.0 t ADT: 50

COUNTY HWY 1

Good

Over: CHICAGO + N W R R

2.5 MI W ANDREW, Sangamon, IL

Built 1945 Load: 24.3 t ADT: 2,400

TR 233

Good

Over: S FORK SANGAMON RV

2.0 MI N ROCHESTER, Sangamon, IL

Built 1967 Load: 24.3 t ADT: 400

TR 341

Good

Over: SOUTH FORK DRAINAGE

2 SE OF NEW CITY, Sangamon, IL

Built 1968 Load: 24.3 t ADT: 75

TR 22

Good

Over: PRAIRIE CREEK

3.0 NW OF BERLIN, Sangamon, IL

Built 1966 Load: 24.3 t ADT: 50

FAP 75 IL 29

Good

Over: DITCH

7.04M N CHRISTIAN CO, Sangamon, IL

Built 2003 Load: 24.3 t ADT: 8,700

FAS 624A (CH 40)

Good

Over: Sangchris Spillway

.03 W Christian CL, Sangamon, IL

Built 1965 Load: 24.3 t ADT: 500

TR 560

Good

Over: WILLOW BRANCH

1.0 S OF ILLIOPOLIS, Sangamon, IL

Built 1966 Load: 26.6 t ADT: 50

TR 200 3.5W

Good

Over: SUGAR CREEK

1.5 NE OF AUBURN, Sangamon, IL

Built 1961 Load: 26.9 t ADT: 600

TR 19

Good

Over: CANTRALL CREEK

1.0 S OF CANTRALL, Sangamon, IL

Built 1975 Load: 28.5 t ADT: 550

I-55 (NB)/ I-72 (E

Good

Over: LOST BRIDGE TRAIL BP

.3M S IL29/S GRND AV, Sangamon, IL

Built 1995 Load: 31.8 t ADT: 25,400

FAS 556(CH 4)

Good

Over: BUCKHART CREEK

3 MI E ROCHESTER, Sangamon, IL

Built 2012 Load: 32.4 t ADT: 1,650

MACARTHUR EXTENSIO

Good

Over: NORFOLK SOUTHERN

JUST N. OF I 72, Sangamon, IL

Built 2009 Load: 32.4 t ADT: 8,200

CH 33/OLD 36

Good

Over: BR LONG POINT SLOUGH

.5MI N I72 ON 0LD 36, Sangamon, IL

Built 1975 Load: 32.4 t ADT: 1,700

I-72 / US 36

Good

Over: LITTLE SPRING CREEK

.25M W FARMINGDAL RD, Sangamon, IL

Built 1975 Load: 32.4 t ADT: 17,100

OLD US 36

Good

Over: CLEAR CREEK

3.3M E BUFFALO, Sangamon, IL

Built 2001 Load: 32.4 t ADT: 550

IL 104

Good

Over: JOHNS CREEK

4.2 MI W AUBURN, Sangamon, IL

Built 2007 Load: 32.4 t ADT: 3,500

COUNTY HWY 12

Good

Over: SANGAMON RIVER

3.5 MI NE ROCHESTER, Sangamon, IL

Built 1957 Load: 32.4 t ADT: 1,300

TR 120 (8W)

Good

Over: SOUTH FORK LICK CR

2.5 NE OF LOAMI, Sangamon, IL

Built 1966 Load: 32.4 t ADT: 75

TR 189

Good

Over: Trib to Griffith Ck

1 mi SE Mechanicsbrg, Sangamon, IL

Built 2012 Load: 32.4 t ADT: 50

TR 189

Good

Over: Trib to Griffith Ck

1 mi SE Mechanicsbrg, Sangamon, IL

Built 2012 Load: 32.4 t ADT: 50

FAS 613

Good

Over: SPRING CREEK

2 M W BERLIN, Sangamon, IL

Built 2009 Load: 32.4 t ADT: 1,100

CH 8/FAS 613

Good

Over: LITTLE SPRING CREEK

CH 8 AT RIDDLE HILL, Sangamon, IL

Built 1989 Load: 32.4 t ADT: 2,900

CH 10, FAS 621

Good

Over: SPRING CREEK

1.0 MI NW NEW BERLIN, Sangamon, IL

Built 2000 Load: 32.4 t ADT: 850

COUNTY HWY 21

Good

Over: RICHLAND CREEK

.5 N PLEASANT PLAINS, Sangamon, IL

Built 1994 Load: 32.4 t ADT: 450

RT621 14.WCOUNTY 1

Good

Over: PRAIRE CREEK

3.0 N BERLIN, Sangamon, IL

Built 1981 Load: 32.4 t ADT: 850

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