Clay County, IL

171 public highway bridges

Clay County Bridge Snapshot

Clay County, Illinois contains 171 public highway bridges in the FHWA National Bridge Inventory. Roughly 48% are rated “Good,” 35.1% “Fair,” 12.9% “Poor,” and 12.9% 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.

171

Total Bridges

48%

Good

12.9%

Poor

12.9%

Structurally Deficient

Condition Distribution

Good

48% (82)

Fair

35.1% (60)

Poor

12.9% (22)

SD

12.9% (22)

All Bridges (171)

Sort:

FAS-801 (CH-16)

Over: TRIB BIG MUDDY

2 MI W INGERHAM, Clay, IL

Built 1996 Load: 32.4 t ADT: 450

TR-208

Over: ELM CREEK

1.5 MI N FLORA, Clay, IL

Built 1998 Load: 32.4 t ADT: 150

TR-178

Over: RACCOON CREEK

2.5 MI SW FLORA, Clay, IL

Built 1999 Load: 32.4 t ADT: 550

TR-335

Over: CHARLIE BROWN LAKE

2.5 MI W FLORA, Clay, IL

Built 2005 Load: 32.4 t ADT: 350

TR-226

Over: BUCK CREEK

1.7 MI NE FLORA, Clay, IL

Built 2000 Load: 32.4 t ADT: 50

TR-102

Over: CREEK

2.3 MI SE XENIA, Clay, IL

Built 1999 Load: 32.4 t ADT: 50

TR 154A

Over: CROOKED CREEK

3 MI NW LOUISVLE, Clay, IL

Built 2002 Load: 32.4 t ADT: 100

FAS 2798

Over: BUCK CREEK

2.5 MI NE FLORA, Clay, IL

Built 2003 Load: 32.4 t ADT: 150

TR 198

Over: BUCK CREEK

2.8 MI N FLORA, Clay, IL

Built 2004 Load: 32.4 t ADT: 450

TR 105

Over: PANTHER CREEK

3.5 MI S HORD, Clay, IL

Built 2007 Load: 32.4 t ADT: 100

TR 331A

Over: ELM CREEK

0.5 MI. W FLORA, Clay, IL

Built 2006 Load: 32.4 t ADT: 225

TR 9

Over: ELM RIVER

2 MI NE RINARD, Clay, IL

Built 2009 Load: 32.4 t ADT: 50

TR 325

Over: ELM CREEK

0.5 MI N FLORA, Clay, IL

Built 2007 Load: 32.4 t ADT: 475

TR 373

Over: CREEK

1 MI SE XENIA, Clay, IL

Built 2008 Load: 32.4 t ADT: 100

TR 200

Over: PANTHER CREEK

3.5 MI N LOUISVILLE, Clay, IL

Built 2009 Load: 32.4 t ADT: 100

FAS 801

Over: LAWS CREEK

1.5 MI E INGRAHAM, Clay, IL

Built 2010 Load: 32.4 t ADT: 550

TR 363/MARIGOLD LN

Over: SEMINARY CREEK

2 MI SE FLORA, Clay, IL

Built 2010 Load: 32.4 t ADT: 100

TR 19

Over: LIMESTONE CREEK

4.5 MI NE BIBLE GROV, Clay, IL

Built 2011 Load: 32.4 t ADT: 175

TR 212A

Over: RACCOON CREEK

3.5 MI S FLORA, Clay, IL

Built 2013 Load: 32.4 t ADT: 75

TR 280

Over: FLAT BRANCH CREEK

3 MI SW SAILOR SPRGS, Clay, IL

Built 2014 Load: 32.4 t ADT: 50

CH 11

Over: CONNERS BRANCH

3 MI W XENIA, Clay, IL

Built 2013 Load: 32.4 t ADT: 50

TR 385

Over: Elm River

4 Miles SE Flora, Clay, IL

Built 2015 Load: 32.4 t ADT: 25

TR 368

Over: Big Muddy Creek

2.5 Mi. NE Sailor Sp, Clay, IL

Built 2016 Load: 32.4 t ADT: 75

TR-40

Over: Conners Branch

2.5 Mi. NW Xenia, Clay, IL

Built 2017 Load: 32.4 t ADT: 100

TR-209

Over: Little Muddy Creek

0.5 Mi. W Sailor Spr, Clay, IL

Built 2017 Load: 32.4 t ADT: 50

TR 225

Over: FLAT BRANCH CREEK

2.5 Mi W Sailor Spri, Clay, IL

Built 2012 Load: 32.4 t ADT: 50

TR 221

Over: Trib to Buck Creek

3 Mi. SW Louisville, Clay, IL

Built 2014 Load: 32.4 t ADT: 175

TR 355

Over: Bear Creek

3.5 SW Flora, Clay, IL

Built 2015 Load: 32.4 t ADT: 50

TR 149

Over: ICG RR

3 MI SW IOLA, Clay, IL

Built 2003 Load: 32.4 t ADT: 25

TR 219

Over: ICG RR

2 MI W OSKALOOSA, Clay, IL

Built 2005 Load: 32.4 t ADT: 25

TR 293

Over: ICG RR

4 MI SW OSKALOOSA, Clay, IL

Built 2007 Load: 32.4 t ADT: 50

FAS 2704 (OLD-50)

Over: BRUSH CREEK

.75 MI E XENIA, Clay, IL

Built 2012 Load: 33.4 t ADT: 1,100

TR-170

Over: BEAR CREEK

3.5 MI SW FLORA, Clay, IL

Built 1980 Load: 36.0 t ADT: 50

FAP 328 (US 45)

Over: GROVE CREEK

1.5 MI S LOUISVILLE, Clay, IL

Built 2009 Load: 36.3 t ADT: 5,200

FAS-719 (CH-7)

Over: CROOKED CREEK

1 MI W IOLA, Clay, IL

Built 1936 Load: 36.3 t ADT: 450

TR 154A

Over: Buck Creek

4 Mi. SW Louisville, Clay, IL

Built 2018 Load: 36.6 t ADT: 100

FAP 328 (US 45)

Over: BRANCH ELM RIVER

.6 MI N JCT US 50, Clay, IL

Built 2009 Load: 38.6 t ADT: 4,550

FAU-8521

Over: CSX TRANS INC

EAST EDGE FLORA, Clay, IL

Built 1986 Load: 39.5 t ADT: 2,900

FAP 328 (US 45)

Over: SEMINARY CK OVERFLOW

4 MI S JCT US 50, Clay, IL

Built 2009 Load: 39.5 t ADT: 2,250

TR-178

Over: BUCK CREEK

3 MI NW FLORA, Clay, IL

Built 1909 Load: 40.2 t ADT: 75

TR 373

Over: NICKOLSON CREEK

0.5 MI E XENIA, Clay, IL

Built 2022 Load: 41.1 t ADT: 100

TR 355

Over: TRIB TO ELM CREEK

2.5 MI SE FLORA, Clay, IL

Built 2012 Load: 42.4 t ADT: 50

TR 89 (Finch Lane)

Over: Panther Creek

2.5 Mi. S Hord, Clay, IL

Built 2016 Load: 42.8 t ADT: 100

FAS 799 (CH 3)

Over: Little Wabash River

0.5 MI. E. Louisvill, Clay, IL

Built 2022 Load: 43.4 t ADT: 950

TR 331

Over: Raccoon Creek

4 Mi. W Flora, Clay, IL

Built 2019 Load: 46.0 t ADT: 100

TR 179

Over: Hurricane Creek

3 Mi. S Wendelin, Clay, IL

Built 2019 Load: 47.0 t ADT: 50

TR 212B

Over: Elm Creek

1 Mi. N Flora, Clay, IL

Built 2019 Load: 54.1 t ADT: 50

FAS 2703-KIN/LOU R

Over: Canadian National RR

.7 MI E MARION CO LI, Clay, IL

Built 2010 Load: 71.3 t ADT: 450

SBI-12 (OLD US 50)

Over: ELM RIVER

.2 MI E JCT US 45S, Clay, IL

Built 2011 Load: 71.6 t ADT: 300

TR-75

Over: PANTHER CREEK

2 MI S HORD, Clay, IL

Built 1950 Load: 11.0 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