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:

I-55/I-74 NB

Over: SIX PTS RD/FAU 6369

1.9 MI S JCT ILL 9, McLean, IL

Built 1963 ADT: 2,300

I-55/I-74 SB

Over: SIX PTS.RD/FAU 6369

1.9 MI S JCT ILL 9, McLean, IL

Built 1963 ADT: 2,300

I-55/I-74 NB

Over: WASH.ST/FAU 6360

0.4 MI S ILL RT 9, McLean, IL

Built 1962 ADT: 5,350

I-55/I-74 SB

Over: WASH.ST/FAU 6360

0.4 MI S OF ILL RT 9, McLean, IL

Built 1962 ADT: 5,350

I-55/I-74 NB

Over: NS Railway & White Oak R

3.8 MI SW OF RT 51, McLean, IL

Built 1963 ADT: 4,250

I-55/I-74 SB

Over: NS Railway & White Oak R

3.8 M SW OF RT 51, McLean, IL

Built 1963 ADT: 4,250

I-55 NW BLOOMINGTO

Over: I-74

I-55NB OVER I-74, McLean, IL

Built 1962 ADT: 26,700

I-55 NW BLOOMINGTO

Over: I-74

I-55SB OVER I-74, McLean, IL

Built 1962 ADT: 26,700

I-55 NB

Over: US 51B (Main St)

INTER I 55 & US 51B, McLean, IL

Built 1962 ADT: 13,300

I-55 SB & CD#2279

Over: US 51B (Main St)

INTER I-55 & US 51B, McLean, IL

Built 1962 ADT: 13,300

I-74 EB

Over: US 51/S.OF BLOOMNGTN

US 51 INTERCHANGE, McLean, IL

Built 1963 ADT: 14,600

I-74 WB

Over: US 51/S.OF BLOOMNGTN

US 51 INTERCHANGE, McLean, IL

Built 1963 ADT: 12,700

I-55 BUSN LOOP

Over: US 51 AT BLOOMINGTON

JCT BUSN 55 & US 51, McLean, IL

Built 1939 ADT: 14,900

I-55 BUSN LOOP

Over: BUNN STREET

0.58 MI E OF US 51, McLean, IL

Built 1940 ADT: 2,800

I-55 BUSN LOOP

Over: Union Pacific RR & Old 6

2.8 MI N OF ILL 9, McLean, IL

Built 1939 ADT: 3,100

US 150

Over: FAI 74

OVER I-74 NW NORMAL, McLean, IL

Built 1964 ADT: 26,700

ILL 9

Over: I-55/I-74

INTERCHANGE ILL 9, McLean, IL

Built 1964 ADT: 42,100

CARLOCK ROAD

Over: I-74

7.70 MI E OF ILL 117, McLean, IL

Built 1964 ADT: 29,600

FAS 1473

Over: I-74

1 MILE W OF I-55, McLean, IL

Built 1963 ADT: 26,700

WEST OAKLAND CH RD

Over: I-55/I-74

1.3 M S I-55 & IL 9, McLean, IL

Built 1963 ADT: 43,100

TR 90

Over: I-74

8.3 MI E OF ILL 117, McLean, IL

Built 1964 ADT: 29,600

COUNTY ROAD TR 76

Over: I-74

6.65 MI E OF ILL 117, McLean, IL

Built 1964 ADT: 28,400

TR 104

Over: I-74

6 MILES W OF I-55, McLean, IL

Built 1964 ADT: 29,600

TR 201

Over: I-74

4 MILES W OF I-55, McLean, IL

Built 1964 ADT: 29,600

TR 210

Over: I-74/S.OF BLOOMNGTN

1 MILE E OF BUSN 55, McLean, IL

Built 1964 ADT: 21,800

TOWANDA AVE(FAU641

Over: I-55/N OF NORMAL

1.75 MI E OF US 51, McLean, IL

Built 1962 ADT: 31,700

FAU 6374 CH 30

Over: I-74/SE OF BLOOMNGTN

2.1 MI E OF US 51, McLean, IL

Built 1968 ADT: 19,000

TR 296

Over: I-74/SE OF BLOOMNGTN

3.53 MI E OF US 51, McLean, IL

Built 1968 ADT: 19,000

FAU 6431 CH 29

Over: I-74/SE OF BLOOMNGTN

5.39 MI E OF US 51, McLean, IL

Built 1968 ADT: 19,000

FAU 6437 CH 36

Over: I-74 NEAR DOWNS

6.91 MI E OF US 51, McLean, IL

Built 1968 ADT: 21,600

TR 366A

Over: I-74

8.87 MI E OF US 51, McLean, IL

Built 1968 ADT: 21,600

TR 390

Over: I-74/2 MI W OF LEROY

2 MI NW OF LEROY, McLean, IL

Built 1970 ADT: 21,600

FAS 1478

Over: I-74 AT LEROY

13.63 MI E OF US 51, McLean, IL

Built 1970 ADT: 21,500

US 136

Over: I-74

2.75 MI SE OF LEROY, McLean, IL

Built 1970 ADT: 21,200

I-55 SB

Over: US 24/FAP 317

0.44 MI W OF OLD 66, McLean, IL

Built 1977 ADT: 5,350

I-55 NB

Over: US 24/FAP 317

0.41 MI W OF OLD 66, McLean, IL

Built 1977 ADT: 5,350

I-55 SB

Over: US 136/FAP 315

MCLEAN, McLean, IL

Built 1975 ADT: 4,300

I-55 NB

Over: US 136/FAP 315

MCLEAN, McLean, IL

Built 1975 ADT: 2,350

TR 539

Over: I-55

1 MI S OF FUNKSGROVE, McLean, IL

Built 1975 ADT: 22,100

I-55 SB

Over: RAMPS & CH36

FUNKS GROVE SEC 16, McLean, IL

Built 1975 ADT: 75

I-55 NB

Over: RAMPS & CH36

FUNKS GROVE SEC 16, McLean, IL

Built 1975 ADT: 75

FAU 6434/CH 34

Over: I-55

EAST OF SHIRLEY, McLean, IL

Built 1976 ADT: 21,300

FAU 6431/CH 29

Over: I-55

.5 MI N OF TOWANDA, McLean, IL

Built 1974 ADT: 23,800

FAS 472 (CH 12)

Over: UPRR & I-55 & Old Rte 66

3 MI NE OF TOWANDA, McLean, IL

Built 1978 ADT: 23,800

TR 83

Over: I-55

2 MI SW OF LEXINGTON, McLean, IL

Built 1974 ADT: 23,800

FAS 473 CH 8

Over: I-55

1 MI W OF LEXINGTON, McLean, IL

Built 1973 ADT: 23,400

FAS 356 CH 23

Over: I-55

1 MI NW OF LEXINGTON, McLean, IL

Built 1973 ADT: 23,400

TR 43

Over: UPRR & I-55 & Old Rte 66

2 MI N OF LEXINGTON, McLean, IL

Built 1978 ADT: 2,050

TR 23

Over: I-55

1 MI S OF CHENOA, McLean, IL

Built 1972 ADT: 23,400

Union Pacific RR

Over: US 51 SB

KINGSLEY ST & ICG, McLean, IL

Built 1978 ADT: 9,700

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