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:

Union Pacific RR

Over: US 51 NB

MAIN ST UNDER ICG RR, McLean, IL

Built 1979 ADT: 11,300

FAP 412 US 51(SB)

Over: US 136

0.51 MI W OF OLD 51, McLean, IL

Built 1986 ADT: 6,550

FAP 412 US 51(NB)

Over: US 136

0.5 MI W OF OLD 51, McLean, IL

Built 1986 ADT: 6,550

US 150/FAP 676& SP

Over: NS Railway & White Oak R

2.9 MI N OF ILL 9, McLean, IL

Built 1987 ADT: 2,750

CH 8 & FAS 473 CH

Over: I-39/US 51

1 MI S WOODFORD CO., McLean, IL

Built 1989 ADT: 18,700

I-39/US 51 SB

Over: FAS 472 CH 12

4.65 MI N OF I-55, McLean, IL

Built 1989 ADT: 1,750

I-39/US 51 NB

Over: FAS 472 CH 12

4.66 MI N OF I-55, McLean, IL

Built 1989 ADT: 1,750

TR 157A

Over: I-39/US 51 SUBSTA RD

2.5 MI N OF I-55, McLean, IL

Built 1989 ADT: 17,300

TR#181 (BUSN. 51)

Over: I-39/US 51

0.22 MI W OF OLD 51, McLean, IL

Built 1988 ADT: 17,300

I-39 RAMP 816 SB

Over: I-55

0.35 MI W OF BUS.51, McLean, IL

Built 1988 ADT: 31,500

I-39 NB

Over: I-55 & CD#2284/2287

0.29 MI W OF OLD 51, McLean, IL

Built 1989 ADT: 31,500

I-39 SB

Over: NORTHTOWN RD TR 201B

O.53 MI N OF I-55, McLean, IL

Built 1988 ADT: 850

I-39 NB

Over: NORTHTOWN RD TR 201B

0.32 MI W OF OLD 51, McLean, IL

Built 1988 ADT: 850

Raab Rd (FAU 6346)

Over: I-55 & I-74

3 MI N OF ILL 9, McLean, IL

Built 1990 ADT: 37,700

FAU6383/6371BEICH

Over: I-55/I-74

2.5 MI. S I-55& IL 9, McLean, IL

Built 2003 ADT: 43,100

I-55/I-74 NB

Over: College Ave(FAU6352)

3.5 MI SW OF RT 51, McLean, IL

Built 1999 ADT: 5,600

I-55/I-74 SB

Over: College Ave(FAU6352)

3.5 M SW OF RT 51, McLean, IL

Built 1999 ADT: 5,600

I-55 NB

Over: FAU 6405/LINDEN

0.7 MI E OF US 51, McLean, IL

Built 2009 ADT: 5,100

I-55 SB

Over: FAU 6405/LINDEN

0.7 MI E OF US 51, McLean, IL

Built 2009 ADT: 5,100

I-55 NB

Over: FAP 704

JCT. FAI55 & VET PKW, McLean, IL

Built 2004 ADT: 12,800

I-55 SB

Over: FAP 704

NE CORNER NORMAL, McLean, IL

Built 2004 ADT: 12,800

I-55 NBL

Over: I-55 BUSN LOOP

NBL OVR 55 BUSN LOOP, McLean, IL

Built 2010 ADT: 4,800

I-55 NBL

Over: EB I-74/SW BLOOM.

JCT I-55 & I-74, McLean, IL

Built 2010 ADT: 21,800

I-55 BUSN LOOP NB

Over: I-74/SW BLOOMINGTON

55 BUSN LP OV I-74, McLean, IL

Built 2013 ADT: 21,800

I-55 BUSN LOOP SB

Over: I-74/SW BLOOMINGTON

55 BUSN LP OV I-74, McLean, IL

Built 2013 ADT: 21,800

I-55 BUSN LOOP NB

Over: I-74/SW BLOOMINGTON

55 BUSN LP OV I-74, McLean, IL

Built 2013 ADT: 21,800

I-55 BUSN LOOP SB

Over: I-74/SW BLOOMINGTON

55 BUSN LP OV I-74, McLean, IL

Built 2013 ADT: 21,800

SOUTHERN PACIFIC R

Over: DIVISION ST

150 FT W OF LEE ST, McLean, IL

Built 1900 ADT: 1,025

SOUTHERN PACIFIC R

Over: MARKET ST FAU6359

100 FT W OF MORRIS, McLean, IL

Built 1889 ADT: 8,650

N&W RR

Over: STILLWELL ST

0.8 MI E 150 & 55, McLean, IL

Built 1900 ADT: 50

SOUTHERN PACIFIC R

Over: OLIVE ST

1.0 MI SW 9 & 51, McLean, IL

Built 1900 ADT: 700

ABANDONED RR

Over: WASHNGTN ST FAU 6360

0.4 MI SSE 9 & 150, McLean, IL

Built 1900 ADT: 8,700

SPCSL RR

Over: VERNON AVE

VERNON E OF BEUFORT, McLean, IL

Built 1972 ADT: 6,050

SPCSL RR

Over: STREET

S OF BEAUFORT, McLean, IL

Built 1900 ADT: 175

SPCSL RR

Over: FAU 6340/CH 32

1 MI SW FAI 74-55, McLean, IL

Built 1900 ADT: 850

EASTHOLME AVE

Over: CNTRYCLB BR SUGAR CR

0.5 MI NE 9 & 150, McLean, IL

Built 1946 Load: 13.3 t ADT: 125

ALLEY W OF ROSNEY

Over: CNTRYCLB BR SUGAR CR

0.5 MI NE 150 & 9, McLean, IL

Built 1946 Load: 14.3 t ADT: 75

EMERSON ST FAU 635

Over: CNTRYCLB BR SUGAR CR

0.75 MI NE 51 & 150, McLean, IL

Built 1946 Load: 15.6 t ADT: 6,550

TR 526

Over: HENLINE DITCH

3.5 MI N COLFAX, McLean, IL

Built 1963 Load: 17.5 t ADT: 50

TR 223

Over: BRANCH MACKINAW RV

3.5 MI SE ANCHOR, McLean, IL

Built 1971 Load: 18.8 t ADT: 25

TR 496

Over: HENLINE DITCH

4.5 MI NW COLFAX, McLean, IL

Built 1971 Load: 18.8 t ADT: 75

FAS-481 (CH-32)

Over: Sugar Creek

1.2 MI NNW SHIRLEY, McLean, IL

Built 1975 Load: 19.1 t ADT: 900

TR 54

Over: BRANCH-SUGAR CR

2 MILE SE STANFORD, McLean, IL

Built 1920 Load: 20.7 t ADT: 100

TR 290

Over: MACKINAW RIVER

4.8 MI SW GRIDLEY, McLean, IL

Built 1973 Load: 21.1 t ADT: 200

COTTAGE AVE/FAU638

Over: SUGAR CREEK

1.5 MI NW 51 & 9, McLean, IL

Built 1968 Load: 22.4 t ADT: 3,250

TR 433

Over: LITTLE KICKAPOO CR

4.3 MI W DOWNS, McLean, IL

Built 1968 Load: 22.7 t ADT: 75

TR 40

Over: BRANCH SUGAR CREEK

2.0 MI SW DANVERS, McLean, IL

Built 1967 Load: 23.0 t ADT: 75

TR 326

Over: MONEY CREEK

4.5 MI SW CLARKSVILL, McLean, IL

Built 1967 Load: 23.0 t ADT: 25

TR 183

Over: LITTLE CROOKED CREEK

1.0 MI NW COOKSVILLE, McLean, IL

Built 1963 Load: 23.3 t ADT: 500

TR 470

Over: LITTLE CROOKED CREEK

1.5 MI N COOKSVILLE, McLean, IL

Built 1964 Load: 23.3 t ADT: 50

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