Grundy County, IL

269 public highway bridges

Grundy County Bridge Snapshot

Grundy County, Illinois contains 269 public highway bridges in the FHWA National Bridge Inventory. Roughly 38.3% are rated “Good,” 27.1% “Fair,” 24.2% “Poor,” and 24.2% 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.

269
Total Bridges
38.3%
Good
24.2%
Poor
24.2%
Structurally Deficient

Condition Distribution

Good
38.3% (103)
Fair
27.1% (73)
Poor
24.2% (65)
SD
24.2% (65)

All Bridges (269)

SCULLY RD TR 165A

Good

Over: TRIB E FORK MAZON RV

.84 MI E GORMAN RD, Grundy, IL

Built 1993 Load: 34.0 t ADT: 50

WAVERLY STREET

Good

Over: NETTLE CREEK

E OF UNION ST, Grundy, IL

Built 1975 Load: 34.0 t ADT: 2,450

GOODFARM RD

Good

Over: W FORK MAZON RIV

.06 MI E OF WARD RD, Grundy, IL

Built 1995 Load: 34.3 t ADT: 50

GORE RD

Good

Over: E FORK NETTLE CR

0.44 M W LISBON RD, Grundy, IL

Built 1997 Load: 34.3 t ADT: 2,000

TR 107A

Good

Over: WAUPECAN CREEK

.81 MI.E. VERONA RD., Grundy, IL

Built 2004 Load: 34.3 t ADT: 50

TR 165 SCULLY ROAD

Good

Over: TRIB TO JOHNNY RUN

.24 MI W KINSMAN RD, Grundy, IL

Built 1981 Load: 34.3 t ADT: 50

TR 136

Good

Over: WALLEY RUN

5.5 MI W MINOOKA, Grundy, IL

Built 1999 Load: 34.7 t ADT: 25

TR 74 Verona Road

Good

Over: THUNDER CREEK

State Rd/prairie RD, Grundy, IL

Built 2012 Load: 34.7 t ADT: 225

SCULLY RD TR 165

Good

Over: WEST FK MAZON RIVER

.14 MI W ZABEL RD, Grundy, IL

Built 1980 Load: 34.7 t ADT: 50

TR159A STONEWALL R

Good

Over: TRIB E FK MAZON RIV

.26 MI W STORM RD, Grundy, IL

Built 1980 Load: 34.7 t ADT: 50

FAI-55 & OR 66

Good

Over: WOODS RUN

5.20 MI S GARDNER, Grundy, IL

Built 1979 Load: 35.6 t ADT: 24,250

INDIAN TRAIL RD

Good

Over: HOG RUN

.25 MI W GONNAM RD, Grundy, IL

Built 1988 Load: 35.6 t ADT: 150

GRANDRIDGE RD CH C

Good

Over: JOHNNY RUN

0.65 MI E ILL RT 47, Grundy, IL

Built 2019 Load: 35.6 t ADT: 950

GARDNER Rd/FAS 292

Good

Over: GOOSEBERRY CREEK

0.07 MI E TR 120, Grundy, IL

Built 2005 Load: 35.6 t ADT: 1,550

CH 37, Livingston

Good

Over: REDDICK RUN

0.25 Mi E Reddick, Grundy, IL

Built 2013 Load: 36.3 t ADT: 350

TR 17(FR)

Good

Over: WALLEY RUN CREEK

4.7MI E I 80 IL 47, Grundy, IL

Built 2003 Load: 36.6 t ADT: 800

US 6

Good

Over: E FORK NETTLE CREEK

WEST OF IL 47, Grundy, IL

Built 2006 Load: 36.6 t ADT: 13,700

DUPONT RD/FAS 1273

Good

Over: BILLS RUN CREEK

0.14 MI W OF TR 80, Grundy, IL

Built 2009 Load: 36.6 t ADT: 1,200

TR 40 SWELL RD

Good

Over: MURRAY SLUICE

.15 MI S SCULLY RD, Grundy, IL

Built 1987 Load: 36.6 t ADT: 25

TR 8 KINSMAN RD

Good

Over: HOG RUN

.24 M S O'MALLEY RD, Grundy, IL

Built 1986 Load: 36.9 t ADT: 150

FAS 292/GARDNER RD

Good

Over: TRIB E FK MAZON RIV.

0.67 MI E GORMAN RD, Grundy, IL

Built 1999 Load: 37.6 t ADT: 2,400

IL 47 FAP 326

Good

Over: DRAINAGE DITCH

0.95 MI S OF IL 113, Grundy, IL

Built 2009 Load: 37.9 t ADT: 7,100

TR-84 Ward Road

Good

Over: Murray Sluice

.12 MI N.CH 49C/GARD, Grundy, IL

Built 2002 Load: 37.9 t ADT: 75

TR 1E (LIV.CO.TR)

Good

Over: MURRAY SLOUGH

4.7 MI W OF I-55, Grundy, IL

Built 2001 Load: 38.6 t ADT: 25

TR 152 GORMAN RD

Good

Over: TRIB E FORK MAZON RV

SEC18 T31N R8E 3RD, Grundy, IL

Built 1998 Load: 38.6 t ADT: 50

CH 16C(SHERRILL RD

Good

Over: VALLEY RUN

.46 MILE W IL 47, Grundy, IL

Built 2013 Load: 38.9 t ADT: 150

TR 174 TABLER RD

Good

Over: TRIB TO AUX SABLE CR

0.34 MI S MINOOKA RD, Grundy, IL

Built 1986 Load: 39.2 t ADT: 675

BRISBIN RD FAU401

Good

Over: Valley Run Creek

.29 MI S. MINOOKA RD, Grundy, IL

Built 1989 Load: 39.5 t ADT: 1,100

CH V16 (Dwight Rd.

Good

Over: Waupecan Creek

0.61 MIS CH-6, Grundy, IL

Built 2015 Load: 40.2 t ADT: 150

FILMAN RD TR-142

Good

Over: TR1B W. FK MAZON RIV

.42 MI S. GARDNER RD, Grundy, IL

Built 1989 Load: 40.2 t ADT: 50

I-55 SB

Good

Over: GOOSEBERRY CR

1 MI E OF ILL 47, Grundy, IL

Built 1979 Load: 41.1 t ADT: 11,600

I-55 NB

Good

Over: GOOSEBERRY CR

1 MI E OF ILL 47, Grundy, IL

Built 1979 Load: 41.1 t ADT: 11,600

ASHLEY RD/FAU 5974

Good

Over: DRAINAGE DITCH

.14 MI S OF US 6, Grundy, IL

Built 1988 Load: 41.5 t ADT: 2,700

ILL 53

Good

Over: UNION PACIFIC RR

S. EDGE OF GARDNER, Grundy, IL

Built 2000 Load: 41.8 t ADT: 1,900

LOWERY RD CH-7

Good

Over: WAUPECAN CR

0.38 MI W OF ILL 47, Grundy, IL

Built 2017 Load: 41.8 t ADT: 125

FAI 80 EBL

Good

Over: E FORK NETTLE CR

1.3 MI W OF ILL 47, Grundy, IL

Built 1958 Load: 42.1 t ADT: 15,300

TR-174 Tabler Road

Good

Over: Trib. Aux Sable Crk

0.77 MI N US 6, Grundy, IL

Built 1987 Load: 42.1 t ADT: 625

CH41 (GRANDRIDGE R

Good

Over: MURRAY SLOUGH

0.03 MI W OF TR 128, Grundy, IL

Built 2022 Load: 43.1 t ADT: 800

PRICE ST

Good

Over: I & M Canal

Wm. G. Stratton SP, Grundy, IL

Built 2020 Load: 43.4 t ADT: 300

US 6 FAU 5952

Good

Over: NETTLE CREEK

2.49 MI W OF IL 47, Grundy, IL

Built 2008 Load: 43.7 t ADT: 7,400

ILL 47

Good

Over: UNKNOWN CREEK

3.58 M N OF I-55, Grundy, IL

Built 1994 Load: 44.1 t ADT: 3,600

TR 147

Good

Over: JOHNNY RUN

RANSOM ROAD, Grundy, IL

Built 2012 Load: 44.7 t ADT: 50

FAS-272 Braceville

Good

Over: MAZON RIVER

0.2MI E at Gorman Rd, Grundy, IL

Built 1970 Load: 45.4 t ADT: 1,450

FAI 080 (EB & WB)

Good

Over: WALLEY RUN CR

4.63 MI E OF ILL 47, Grundy, IL

Built 2003 Load: 47.3 t ADT: 39,100

FAI 80 (EB & WB)

Good

Over: COLLINS RUN CREEK

3.93 MI E OF ILL 47, Grundy, IL

Built 2003 Load: 47.6 t ADT: 39,100

ILL 47 FAP326

Good

Over: STREAM

1.92 MI S of IL 113, Grundy, IL

Built 1995 Load: 47.6 t ADT: 7,100

TR-51 Kinsman Rd

Good

Over: Armstrong Run

.69 S Dupont Road, Grundy, IL

Built 2014 Load: 49.2 t ADT: 125

I-80 WB Exit Ramp

Good

Over: COLLINS RUN

NE QUAD I-80/BRISBIN, Grundy, IL

Built 2011 Load: 49.6 t ADT: 1,350

IL 47 FAP 326

Good

Over: VALLEY RUN Creek

3.5 MI N OF I-80 Intechng, Grundy, IL

Built 2016 Load: 49.6 t ADT: 6,900

OR 66 NBL

Good

Over: BREWSTER RUN

0.3 M N ILL 47, Grundy, IL

Built 2000 Load: 50.5 t ADT: 825

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