Logan County, IL

296 public highway bridges

Logan County Bridge Snapshot

Logan County, Illinois contains 296 public highway bridges in the FHWA National Bridge Inventory. Roughly 27.7% are rated “Good,” 54.7% “Fair,” 7.8% “Poor,” and 7.8% 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.

296

Total Bridges

27.7%

Good

7.8%

Poor

7.8%

Structurally Deficient

Condition Distribution

Good

27.7% (82)

Fair

54.7% (162)

Poor

7.8% (23)

SD

7.8% (23)

All Bridges (296)

Sort:

TR 23

Over: PRAIRIE CK

3 S .5 MI E SAN JOSE, Logan, IL

Built 1964 Load: 35.6 t ADT: 50

FAI 155 SB

Over: S BR PRAIRIE CREEK

3.0MI S I-155/IL136, Logan, IL

Built 1988 Load: 36.9 t ADT: 5,300

FAI 155 NB

Over: S BR PRAIRIE CREEK

3.0MI S I-155/IL136, Logan, IL

Built 1988 Load: 36.9 t ADT: 5,300

TR 290

Over: KICKAPOO CRK

2.5 MI S ATLANTA, Logan, IL

Built 1980 Load: 36.9 t ADT: 75

IL 10

Over: KICKAPOO CR OVERFLOW

0.5 MI W I-55, Logan, IL

Built 1999 Load: 37.6 t ADT: 3,100

I-55 SB

Over: SALT CREEK

2.1M S IL10, Logan, IL

Built 1973 Load: 38.6 t ADT: 13,750

I-55 NB

Over: SALT CREEK

2.1M S IL10, Logan, IL

Built 1973 Load: 38.6 t ADT: 13,750

IL 121

Over: NORTH BR LAKE FORK

3.9M E IL54-MT PUL.*, Logan, IL

Built 1931 Load: 38.9 t ADT: 2,850

ILL 10

Over: PRAIRIE CREEK

.10 MI E MASON CO LN, Logan, IL

Built 2007 Load: 38.9 t ADT: 1,400

TR 252

Over: SUGAR CREEK

3.4 MI N.W. ATLANTA, Logan, IL

Built 1989 Load: 38.9 t ADT: 20

IL 10

Over: KICKAPOO CREEK

.6M W I-55, Logan, IL

Built 1999 Load: 39.2 t ADT: 3,100

PRIMM RD

Over: Salt Springs

1 MI S LINCOLN, Logan, IL

Built 1928 Load: 39.2 t ADT: 800

TR 44

Over: SUGAR CREEK

3 MI E NEW HOLLAND, Logan, IL

Built 1980 Load: 39.2 t ADT: 50

OLD IL 121

Over: SUGAR CREEK

2.5MI SE HARTSBURG, Logan, IL

Built 1999 Load: 39.5 t ADT: 1,200

US 136

Over: PRAIRIE CREEK

1.9M W I-155, Logan, IL

Built 1937 Load: 40.2 t ADT: 2,300

TR 290

Over: KICKAPOO CK TRIB

2 MI S ATLANTA, Logan, IL

Built 1971 Load: 40.2 t ADT: 75

IL 10

Over: SUGAR CREEK

3.4M E NEW HOLLAND*, Logan, IL

Built 1931 Load: 42.1 t ADT: 2,000

FAS 559A

Over: SUGAR CREEK

4.4 Mi N I-55, Logan, IL

Built 1976 Load: 42.8 t ADT: 250

I-55 NB

Over: ICRR & KICKAPOO OVFL

2.1 M E I-55/155INT, Logan, IL

Built 1974 Load: 43.4 t ADT: 10,750

I-55 SB

Over: ICRR & KICKAPOO OVFL

2.1 M E I-55/155INT, Logan, IL

Built 1974 Load: 43.4 t ADT: 10,750

US 136

Over: PRAIRIE CREEK DITCH

1.6M E 1ST-SAN JOSE, Logan, IL

Built 1937 Load: 44.1 t ADT: 2,300

FAI 155 NB

Over: SUGAR CREEK

3M NW I-55/I-155 INT, Logan, IL

Built 1986 Load: 44.4 t ADT: 5,300

FAI 155 SB

Over: SUGAR CREEK

3M NW I-55/I-155 INT, Logan, IL

Built 1986 Load: 44.4 t ADT: 5,300

FAS 561/CH 9PRIMM

Over: SALT CK

5.75 MI S LINCOLN, Logan, IL

Built 1976 Load: 44.7 t ADT: 500

I-55 NB

Over: KICKAPOO CREEK

3.6 N BUS55 LAWNDALE, Logan, IL

Built 1974 Load: 45.0 t ADT: 11,600

I-55 SB

Over: KICKAPOO CREEK

3.6 N BUS55 LAWNDALE, Logan, IL

Built 1974 Load: 45.0 t ADT: 11,600

US 136

Over: SUGAR CREEK

1.2M E ARMINGTON RD, Logan, IL

Built 1937 Load: 45.7 t ADT: 2,200

FAS 569

Over: KICKAPOO CK

3 MI W LINCOLN, Logan, IL

Built 1977 Load: 47.3 t ADT: 1,050

I-55 NB

Over: KICKAPOO CREEK

.5 N IL10 NW LINCOLN, Logan, IL

Built 1973 Load: 49.2 t ADT: 15,150

IL 54

Over: LAKE FORK CREEK

1.5M NE CORNLAND CTR, Logan, IL

Built 1940 Load: 49.9 t ADT: 1,400

TR 239

Over: N FORK LAKE FORK CK

1.5 MI S NARITA, Logan, IL

Built 1971 Load: 50.2 t ADT: 100

TR 44

Over: SUGAR CREEK OVERFLOW

3 MI SE New Holland, Logan, IL

Built 1984 Load: 50.2 t ADT: 50

I-55 SB

Over: KICKAPOO CREEK

.5 N IL10 NW LINCOLN, Logan, IL

Built 1973 Load: 51.5 t ADT: 15,150

I-55

Over: DRAINAGE DITCH

.7M SW ELKHART INT, Logan, IL

Built 1974 Load: 53.5 t ADT: 32,400

E FRONT RD OF I-15

Over: N FORK PRAIRIE CREEK

.3M N US 136, Logan, IL

Built 1990 Load: 56.7 t ADT: 100

I-55 NB

Over: IT RR (ABANDONED)

2.8 M E I-55/155 INT, Logan, IL

Built 1973 Load: 65.4 t ADT: 10,750

I-55 SB

Over: IT RR (ABANDONED)

2.8 M E I-55/155 INT, Logan, IL

Built 1973 Load: 65.4 t ADT: 10,750

I-55

Over: HURLBUT CREEK

.7M NE ELKHART INT, Logan, IL

Built 1974 Load: 72.3 t ADT: 34,900

I-55

Over: DRAINAGE DITCH

.5M W BL55 NE LINCLN, Logan, IL

Built 1974 Load: 72.3 t ADT: 21,500

TR 147

Over: DITCH

1.5 MI N BROADWELL, Logan, IL

Built 1995 Load: 73.2 t ADT: 100

TR 290

Over: KICKAPOO CK TRIB

2 MI S ATLANTA, Logan, IL

Built 2004 Load: 97.2 t ADT: 75

TR 78

Over: LOCAL DRAINAGE

2 N 1 MI W BROADWELL, Logan, IL

Built 1957 Load: 18.8 t ADT: 50

SOUTH BEASON RD

Over: DEER CK

3.5 MI E LINCOLN, Logan, IL

Built 1966 Load: 20.1 t ADT: 225

TR 212

Over: HUNTER SLOUGH

4 MI E CORNLAND, Logan, IL

Built 1959 Load: 21.5 t ADT: 20

TR 218

Over: LAKE FORK TRIBUTARY

1MI.W.1MI.S.MT.PULAS, Logan, IL

Built 1963 Load: 22.7 t ADT: 150

TR 245

Over: LOCAL DRAINAGE

1 MI NE CORNLAND, Logan, IL

Built 1900 Load: 24.3 t ADT: 20

TR 23

Over: PRAIRIE CK

1.5 W 2 MI S EMDEN, Logan, IL

Built 1967 Load: 25.6 t ADT: 50

ROCKY FORD RD

Over: LOCAL DRAINAGE

2 MI SW LINCOLN, Logan, IL

Built 1955 Load: 25.9 t ADT: 20

FAS 566

Over: LAKE FORK CREEK TRIB

1 M E ELKHART, Logan, IL

Built 2010 Load: 27.9 t ADT: 700

CH 18

Over: SUGAR CK TRIB

3 MI E HARTSBURG, Logan, IL

Built 1967 Load: 28.5 t ADT: 200

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