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)

I72/MACARTHUR RAMP

Good

Over: UPRR

1.3 MI W I-55, Sangamon, IL

Built 2009 Load: 67.1 t ADT: 3,800

I72/MACARTHUR RAMP

Good

Over: UPRR/RECREATION DR

1.3 MI W I 55, Sangamon, IL

Built 2009 Load: 68.0 t ADT: 3,200

IL 4 (MAIN ST.)

Good

Over: POLECAT CR TRIBUTARY

.5M S MANSION-CHATHM, Sangamon, IL

Built 1978 Load: 89.1 t ADT: 18,500

I-72 / US 36

Good

Over: HOOVER BRANCH

1M E I-55, Sangamon, IL

Built 1974 Load: 97.2 t ADT: 7,250

VETERANS PKWY (IL

Good

Over: LICK CREEK TRIBUTARY

.17M S MATHERS GUN C, Sangamon, IL

Built 1974 Load: 97.2 t ADT: 21,500

TR 348

Poor

Over: HORSE CREEK

2.0 SE OF NEW CITY, Sangamon, IL

Built 1963 ADT: 225

TR 831

Poor

Over: SPRING CREEK

0.3 Mi N of VET PKWY, Sangamon, IL

Built 1960 Load: 2.3 t ADT: 600

TR 171

Poor

Over: SANGAMON RIVER

2.0 E OF CLEAR LAKE, Sangamon, IL

Built 1950 Load: 10.0 t ADT: 175

COUNTY HWY 28

Poor

Over: HORSE CREEK

2.0 MI S PAWNEE, Sangamon, IL

Built 1957 Load: 14.6 t ADT: 375

TR 100 (9.5W)

Poor

Over: SPRING CREEK

4.0 E BERLIN, Sangamon, IL

Built 1970 Load: 16.8 t ADT: 100

TR 104 (9W)

Poor

Over: PRAIRIE CREEK

1.0 NW FARMINGDALE, Sangamon, IL

Built 1971 Load: 16.8 t ADT: 100

TR 383 12.5 S

Poor

Over: S FORK LICK CREEK

3.5 S OF LOAMI, Sangamon, IL

Built 1967 Load: 16.8 t ADT: 75

TR 197 10.25 S

Poor

Over: SPRING CREEK

1.0 W OF RIDDLE HILL, Sangamon, IL

Built 1973 Load: 17.2 t ADT: 400

TR 90 (11W)

Poor

Over: SPRING CREEK

2.0 E BERLIN, Sangamon, IL

Built 1958 Load: 18.1 t ADT: 50

FAS 1622A (CH 28)

Poor

Over: HORSE CREEK

1.0 S PAWNEE, Sangamon, IL

Built 1957 Load: 18.8 t ADT: 325

TR 1 (12N)

Poor

Over: FANCY CREEK

1.5 NW WILLIAMSVILLE, Sangamon, IL

Built 1963 Load: 19.4 t ADT: 50

COUNTY HWY 37

Poor

Over: S FORK SANGAMON RIVE

1.5 MI N NEW CITY, Sangamon, IL

Built 1980 Load: 22.7 t ADT: 1,600

FAS 625

Poor

Over: SUGAR CREEK

1.0 S OF AUBURN, Sangamon, IL

Built 1956 Load: 24.3 t ADT: 1,000

I-55 (NB)

Poor

Over: SANGAMON RIVER

2.8M N IL54/SANG. AV, Sangamon, IL

Built 1963 Load: 25.9 t ADT: 14,600

I-55 SB

Poor

Over: SANGAMON RIVER

2.8M N IL54/SANG. AV, Sangamon, IL

Built 1963 Load: 25.9 t ADT: 14,600

I-55 (SB)

Poor

Over: ILLINOIS CENTRAL RR

1M N GLENARM INTCHG, Sangamon, IL

Built 1971 Load: 29.8 t ADT: 17,850

IL 123

Poor

Over: FANCY CREEK

2.5M E IL 29, Sangamon, IL

Built 1919 Load: 36.0 t ADT: 2,450

ILL 54

Poor

Over: WOLF CREEK

1.6M E BARCLAY, Sangamon, IL

Built 1941 Load: 41.1 t ADT: 2,150

TR 478 11E

Poor

Over: BUCKHART CREEK

4.5 E ROCHESTER, Sangamon, IL

Built 1958 Load: 43.4 t ADT: 325

FAS 631-CTY HWY 31

Poor

Over: WOLF CREEK

0.5 N OF SPAULDING, Sangamon, IL

Built 1985 Load: 45.0 t ADT: 1,700

FAS 629

Poor

Over: SPRING CREEK

1.0 S BRADFORDTON, Sangamon, IL

Built 1974 Load: 55.7 t ADT: 4,100

FAS 563 (CH 16)

Poor

Over: Ditch

0.06 mi S of IL 54, Sangamon, IL

Built 1940 Load: 65.8 t ADT: 250

TR 446 7.5 E

Structurally Deficient

Over: WOLF CREEK

1.5 NE WILLIAMSVILLE, Sangamon, IL

Built 1900 Load: 5.2 t ADT: 125

TR 428 8.25 E

Structurally Deficient

Over: S FORK SANG RIVER

2.2 MI E OF NEW CITY, Sangamon, IL

Built 1954 Load: 12.3 t ADT: 100

FAS 1636

Structurally Deficient

Over: RICHLAND CREEK

1.5 MI. E SALISBURY, Sangamon, IL

Built 1952 Load: 23.3 t ADT: 200

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