Adams County, IL

325 public highway bridges

Adams County Bridge Snapshot

Adams County, Illinois contains 325 public highway bridges in the FHWA National Bridge Inventory. Roughly 37.2% are rated “Good,” 48.9% “Fair,” 5.8% “Poor,” and 5.8% 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.

325

Total Bridges

37.2%

Good

5.8%

Poor

5.8%

Structurally Deficient

Condition Distribution

Good

37.2% (121)

Fair

48.9% (159)

Poor

5.8% (19)

SD

5.8% (19)

All Bridges (325)

Sort:

US 24 (3RD ST)

Over: CEDAR CREEK & BN RR

1.5M N IL104/BROADWY, Adams, IL

Built 1968 ADT: 75

FAP 502/IL 57/3RD

Over: PAYSON ST

.5M S US 24/MAINE ST, Adams, IL

Built 1959 ADT: 175

US 24(EB)/ MAINE S

Over: MISS. R./FRONT ST/BN

W EDGE DWNTWN QUINCY, Adams, IL

Built 1930 ADT: 1,550

ILL 96

Over: FAI 172

I-72/IL96 INT, Adams, IL

Built 1976 ADT: 7,400

W ST ANTHONY/TR 42

Over: I-172

1.8M N IL 96, Adams, IL

Built 1976 ADT: 7,400

CH 5

Over: FAI 172

.7MI S I172/IL104, Adams, IL

Built 1976 ADT: 7,400

ILL 104

Over: FAI 172

I-172/IL104 INT, Adams, IL

Built 1976 ADT: 8,600

FAS 1604/TR 349

Over: FAI 172

1.3MI N I172/IL104, Adams, IL

Built 1976 ADT: 7,350

CH 3 / ELLINGTON R

Over: I-172

2.1M S US 24, Adams, IL

Built 1976 ADT: 7,350

TR 551

Over: FAI 172

2 MI S I172/IL96, Adams, IL

Built 1981 ADT: 9,750

TR 531A

Over: FAI 172

3.6MI N I172/IL57, Adams, IL

Built 1981 ADT: 9,750

TR 114A

Over: FAI 172

1MI S I172/IL96, Adams, IL

Built 1981 ADT: 9,750

FAI 172 SB

Over: ILL 57

I-172/IL57 INT, Adams, IL

Built 1982 ADT: 4,000

FAI 172 NB

Over: ILL 57

I-172/IL57 INT, Adams, IL

Built 1982 ADT: 1,100

TR 597

Over: FAI 172

.7MI S I172/IL57, Adams, IL

Built 1982 ADT: 13,100

US 24(WB)/ BROADWA

Over: MISS. R/STREETS/BNRR

W EDGE DWNTWN QUINCY, Adams, IL

Built 1986 ADT: 875

OR 79

Over: FAI 172

2.2MI S I172/IL57, Adams, IL

Built 1990 ADT: 13,100

I-172 & ILL 336 SB

Over: US 24

US 24 & IL 336 JCT, Adams, IL

Built 1994 ADT: 4,350

I-172 & ILL 336 NB

Over: US 24

US 24 & IL 336 JCT, Adams, IL

Built 1994 ADT: 4,000

FAP 733

Over: ILL 336

0.3 MI E MENDON, Adams, IL

Built 2001 ADT: 5,800

RAILROAD

Over: US 24 - FAP 63

1 MI E PALOMA, Adams, IL

Built 1924 ADT: 4,000

B&N RR

Over: FAU 7818

FRONT STREET,QUINCY, Adams, IL

Built 1900 ADT: 1,150

RAILROAD

Over: N 12TH STREET

N 12TH QUINCY, Adams, IL

Built 1900 ADT: 6,300

RAILROAD

Over: ILL 94 FAP 518

1 MI. SO GOLDEN, Adams, IL

Built 1900 ADT: 800

B&N RR

Over: CH 3

3 M ENE QUINCY, Adams, IL

Built 1900 ADT: 650

B&N RR

Over: CH 0007

CEDAR ST IN QUINCY, Adams, IL

Built 1900 ADT: 600

TR 210

Over: MILL CREEK

2.0 MI N PAYSON, Adams, IL

Built 1923 Load: 2.9 t ADT: 100

TR 77

Over: OAK CR

2 MI NW MARCELLINE, Adams, IL

Built 1900 Load: 11.0 t ADT: 50

TR 309A

Over: FIGLEY CREEK

2.75MI E COLUMBUS, Adams, IL

Built 1993 Load: 14.6 t ADT: 25

TR 53

Over: CEDAR CRK.

2.0 MI NE LAPRAIRIE, Adams, IL

Built 1905 Load: 17.5 t ADT: 75

TR 542

Over: CREEK

1.6 MI SE CLAYTON, Adams, IL

Built 1905 Load: 17.5 t ADT: 25

TR 367

Over: Walnut Fork Creek

3.25 MI W KELLERVILL, Adams, IL

Built 1939 Load: 19.4 t ADT: 75

TR 227

Over: INDIAN GRAVE CANAL

4.0 MI N QUINCY, Adams, IL

Built 1984 Load: 19.4 t ADT: 50

TR 0362

Over: BEAR CRK

1.8 MI SE Coatsburg, Adams, IL

Built 1900 Load: 19.4 t ADT: 75

ILL 96

Over: MILL CREEK

0.3MI SE I-172/IL96, Adams, IL

Built 1977 Load: 20.1 t ADT: 2,850

TR 257

Over: BRANCH FRAZIER CREEK

2.9 MI N QUINCY, Adams, IL

Built 1974 Load: 21.4 t ADT: 275

TR 294

Over: Trib Tournear Creek

0.30 mi N TR 419, Adams, IL

Built 1900 Load: 22.7 t ADT: 25

TR 61

Over: THURMAN CRK.

0.8 MI E LORAINE, Adams, IL

Built 1969 Load: 23.0 t ADT: 100

TR 0085

Over: CROOKED CREEK

3.8 MI W GOLDEN, Adams, IL

Built 1970 Load: 23.0 t ADT: 50

CH 7

Over: HOMAN CREEK

2.3 MILES N QUINCY, Adams, IL

Built 1965 Load: 24.3 t ADT: 625

CH 10

Over: MCCRANEY CREEK

2 MI E PLAINVILLE, Adams, IL

Built 1938 Load: 24.3 t ADT: 225

TR 124

Over: GRINDSTONE CRK.

4.5 MI W LORAINE, Adams, IL

Built 1918 Load: 24.3 t ADT: 50

TR 203

Over: CREEK

3.7 MI SW URSA, Adams, IL

Built 1905 Load: 24.3 t ADT: 75

TR 378

Over: CREEK

4.0 MI W LAPRAIRIE, Adams, IL

Built 1935 Load: 24.3 t ADT: 50

TR 398

Over: Beebe Creek

2.2 M SW KINGSTON, Adams, IL

Built 1905 Load: 24.3 t ADT: 25

TR 474

Over: CREEK

1.7 MI N LAPRAIRIE, Adams, IL

Built 1905 Load: 24.3 t ADT: 50

TR 89A

Over: BEAR CRK

2.5 MI S OF LORAINE, Adams, IL

Built 1969 Load: 24.3 t ADT: 125

TR 387

Over: LIERLE CREEK

2.7 MI N LIBERTY, Adams, IL

Built 1971 Load: 24.3 t ADT: 50

TR 0180A

Over: MILL CREEKBRANCH

3.25 MI N PAYSON, Adams, IL

Built 1970 Load: 24.3 t ADT: 75

TR 312

Over: BRANCH OF MCKEE CRK

1.0 MI S COATSBURG, Adams, IL

Built 1908 Load: 24.3 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 5, 2026