McLean County, IL

624 public highway bridges

McLean County Bridge Snapshot

McLean County, Illinois contains 624 public highway bridges in the FHWA National Bridge Inventory. Roughly 57.2% are rated “Good,” 27.4% “Fair,” 1.8% “Poor,” and 1.8% 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.

624

Total Bridges

57.2%

Good

1.8%

Poor

1.8%

Structurally Deficient

Condition Distribution

Good

57.2% (357)

Fair

27.4% (171)

Poor

1.8% (11)

SD

1.8% (11)

All Bridges (624)

Sort:

TR 386

Over: LITTLE KICKAPOO CR

2.0 MI E DOWNS, McLean, IL

Built 1967 Load: 31.8 t ADT: 75

TR 23A

Over: BR OF ROOKS CREEK

3.0 MI SE CHENOA, McLean, IL

Built 1962 Load: 31.8 t ADT: 75

FAS-1479 (CH-34)

Over: Branch Timber Creek

1 MILE E SHIRLEY, McLean, IL

Built 1962 Load: 32.1 t ADT: 475

TR 1

Over: BRANCH ROOKS CREEK

1.0 MI NW CHENOA, McLean, IL

Built 1963 Load: 32.1 t ADT: 75

TR 255A

Over: BR MACKINAW RIVER

4.0 MI S COLFAX, McLean, IL

Built 1960 Load: 32.1 t ADT: 75

TR 29

Over: BR OF ROOKS CREEK

3.0 MI SW WESTON, McLean, IL

Built 1963 Load: 32.1 t ADT: 50

I-55 SB

Over: Toledo Peoria & Westrn R

.25 MI N OF US 24, McLean, IL

Built 1977 Load: 32.4 t ADT: 10,500

I-55 NB

Over: Toledo Peoria & Westrn R

.25 MI N OF US 24, McLean, IL

Built 1977 Load: 32.4 t ADT: 10,500

FAS 472 CH 12

Over: SIX MILE CREEK

0.5 MI W HUDSON, McLean, IL

Built 1989 Load: 32.4 t ADT: 775

TR 239B

Over: BRANCH MACKINAW R

3.5 MI SE ANCHOR, McLean, IL

Built 1983 Load: 32.4 t ADT: 100

FAS 492 CH 7

Over: MACKINAW RIVER

0.5 MI S ANCHOR, McLean, IL

Built 1985 Load: 32.4 t ADT: 525

Fox Creek Rd(FAU64

Over: SOUTHERN PAC RR

1 MI NNW 55 & 74, McLean, IL

Built 1982 Load: 32.4 t ADT: 5,800

CH 30

Over: LITTLE KICKAPOO CR

1.0 MI SE 51 & 74, McLean, IL

Built 1990 Load: 32.4 t ADT: 900

TR 161A

Over: LITTLE CROOKED CR

4.0 MI SE LEXINGTON, McLean, IL

Built 1990 Load: 32.4 t ADT: 50

TR 602

Over: SANGAMON R

1.5 MI SE SAYBROOK, McLean, IL

Built 1978 Load: 32.4 t ADT: 25

TR 608

Over: SANGAMON RIVER

2.5 MI SE SAYBROOK, McLean, IL

Built 1982 Load: 32.4 t ADT: 75

FAS 487 CH 36

Over: SANGAMON RIVER

W SIDE SAYBROOK, McLean, IL

Built 1989 Load: 32.4 t ADT: 500

TR 23A

Over: BROOKS CREEK TRIB

3000N, 2991E, McLean, IL

Built 2003 Load: 32.4 t ADT: 75

TR 562

Over: HENLINE CREEK

2.0 MI NE COLFAX, McLean, IL

Built 1980 Load: 32.4 t ADT: 25

TR 56

Over: ROCK CREEK

2.0 MI NW CARLOCK, McLean, IL

Built 1980 Load: 32.4 t ADT: 100

TR 36

Over: ROCK CREEK

5.0 MI WNW CARLOCK, McLean, IL

Built 1988 Load: 32.4 t ADT: 150

FAS360 CH55

Over: W.FORK SUGARCREEK

0.5 MI W DANVERS, McLean, IL

Built 1994 Load: 32.4 t ADT: 550

TR 118A

Over: KINGS MILL CREEK

1.3 MI NW TWIN GROVE, McLean, IL

Built 1978 Load: 32.4 t ADT: 150

FAS 494, CH 21

Over: N FORK SALT CREEK

1.5 MI SE LEROY, McLean, IL

Built 1982 Load: 32.4 t ADT: 775

TR 483

Over: TIMBER CREEK

1.2 MI W FUNKS GROVE, McLean, IL

Built 1980 Load: 32.4 t ADT: 75

TR 98

Over: SUGAR CREEK

2.0 MI N FUNKS GROVE, McLean, IL

Built 1980 Load: 32.4 t ADT: 50

CH 37/FAS 480

Over: SIX MILE CR

1.0 MI SE HUDSON, McLean, IL

Built 1989 Load: 32.4 t ADT: 2,550

TR 496

Over: MACKINAW RIVER

3.5 MI W COLFAX, McLean, IL

Built 1980 Load: 32.4 t ADT: 75

FAS 479 CH 59

Over: SUGAR CREEK

1.5 MI NNW MCLEAN, McLean, IL

Built 1975 Load: 32.4 t ADT: 425

TR 345

Over: BR KICKAPOO CREEK

3.5 MI NE DOWNS, McLean, IL

Built 1981 Load: 32.4 t ADT: 25

TR 546

Over: BRANCH SALT CREEK

3.5 MI NW BELLFLOWER, McLean, IL

Built 1959 Load: 32.4 t ADT: 75

TR 512

Over: ROOKS CREEK TR 512

2.0 MI WNW WESTON, McLean, IL

Built 1982 Load: 32.4 t ADT: 75

TR 522

Over: ROOKS CREEK

1.0 MI W WESTON, McLean, IL

Built 1982 Load: 32.4 t ADT: 75

TR 548 A

Over: ROOKS CREEK

3.8 MI SSE WESTON, McLean, IL

Built 1983 Load: 32.4 t ADT: 75

HERSHEY RD FAU 641

Over: BROOKRIDGE CREEK

1.5 MI ENE 55 & 150, McLean, IL

Built 1981 Load: 32.4 t ADT: 2,675

FAU6363 OAKLAND AV

Over: SOUTHERN PACIFIC RR

1.2 MI SE 74 & 150, McLean, IL

Built 1991 Load: 32.4 t ADT: 4,750

ADELAIDE ST-FAU 63

Over: PHEASANT CREEK

1.4 MI NNW 150 & 51, McLean, IL

Built 1955 Load: 32.4 t ADT: 2,250

HOVEY AVE FAU 6353

Over: PHEASANT CREEK

1.2 MI NNW 51 & 150, McLean, IL

Built 1964 Load: 32.4 t ADT: 7,850

BLAIR DR

Over: SUGAR CREEK

1.7 MI NNW BUS55 & 9, McLean, IL

Built 1991 Load: 32.4 t ADT: 1,400

TOWANDA AVE

Over: SOUTHERN PACIFIC RR

2.4 MI NNW BUS55 & 9, McLean, IL

Built 1994 Load: 32.4 t ADT: 13,700

COLLEGE AVE

Over: N FORK SUGAR CR

1.8 MI NE 9/BUS51, McLean, IL

Built 2008 Load: 32.4 t ADT: 12,200

I-74

Over: ROCK CREEK

7.2 MI E OF ILL 117, McLean, IL

Built 1964 Load: 32.7 t ADT: 14,200

I-74

Over: ROCK CREEK

7.2 MI E OF ILL 117, McLean, IL

Built 1964 Load: 32.7 t ADT: 14,200

FAS 489 CH 21

Over: N FORK SALT CREEK

2.0 MI N LEROY, McLean, IL

Built 1933 Load: 32.7 t ADT: 1,450

FAS 493 CH 5

Over: SANGAMON RIVER

0.5 MI S SAYBROOK, McLean, IL

Built 1937 Load: 33.0 t ADT: 675

CH-8 (FAS-473)

Over: MACKINAW RIVER

1.0 MI W CLARKSVILLE, McLean, IL

Built 1946 Load: 33.0 t ADT: 575

FAS 482 CH 36

Over: TIMBER CR

0.5 MIE FUNKS GROVE, McLean, IL

Built 1976 Load: 33.4 t ADT: 75

FAS 356 CH 23

Over: TURKEY CREEK

1.0 MI N LEXINGTON, McLean, IL

Built 1932 Load: 34.0 t ADT: 800

FAS 489 CH 21

Over: MACKINAW RIVER

1.0 MI SW LEXINGTON, McLean, IL

Built 1964 Load: 34.7 t ADT: 775

TOWANDA AVE

Over: SUGAR CREEK

1.0 MI NNW 55 & 9, McLean, IL

Built 1970 Load: 34.7 t ADT: 4,850

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026