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)

IL 47 FAP 326

Good

Over: SARATOGA CREEK

0.38 MI N/NELSON RD, Grundy, IL

Built 2016 Load: 51.8 t ADT: 6,900

TR 9 AIRPORT ROAD

Good

Over: SARATOGA CREEK

0.32 MI W MIDDLE RD, Grundy, IL

Built 1984 Load: 55.7 t ADT: 125

ASHLEY RD, FAU 597

Good

Over: SARATOGA CR

.99 MI N GRANVILLE R, Grundy, IL

Built 1960 Load: 57.7 t ADT: 700

I-55

Good

Over: BREWSTER RUN

.5 MI W OF ILL 47, Grundy, IL

Built 1979 Load: 92.7 t ADT: 22,900

TR-167 SCULLY RD

Poor

Over: TRIB E FK MAZON RIV

.47 MI W CH-16, Grundy, IL

Built 1910 ADT: 50

CH 15

Poor

Over: E FK MAZONRIVER

0.05 MI W CH 16, Grundy, IL

Built 1977 Load: 1.0 t ADT: 1,400

CALHOUN ST

Poor

Over: ILL MICHIGAN CANAL

CALHOUN ST OV I&M C, Grundy, IL

Built 1930 Load: 19.4 t ADT: 900

CEMETERY RD TR-25

Poor

Over: AUX SABLE CR

.13 MI W TABLER RD, Grundy, IL

Built 1979 Load: 19.8 t ADT: 650

TR-113 BRACEVILLE

Poor

Over: W. FORK MAZON RIVER

.19 MI W TYNAN RD, Grundy, IL

Built 1910 Load: 20.1 t ADT: 150

TR-107B REED RD

Poor

Over: JOHNNY RUN

.02 MI E OLD MAZON R, Grundy, IL

Built 1940 Load: 21.1 t ADT: 275

CH 27 LISBON RD

Poor

Over: SARATOGA CREEK

0.71 MI S SHERRIL RD, Grundy, IL

Built 1985 Load: 23.0 t ADT: 1,000

DuPont Rd/FAS1273

Poor

Over: HOG RUN

SE Sec 30 T33N Range, Grundy, IL

Built 1975 Load: 24.3 t ADT: 775

US 6

Poor

Over: CSX Railroad

5.27 E OF ROUTE 47, Grundy, IL

Built 1974 Load: 25.9 t ADT: 7,050

CH-41

Poor

Over: Granary Creek

ESSEX WLN SEC 7, Grundy, IL

Built 1977 Load: 26.9 t ADT: 950

TR-84 WARD RD

Poor

Over: JOHNNY RUN

.43 MI S PRAIRIE RD, Grundy, IL

Built 1978 Load: 27.5 t ADT: 75

MINOOKA RD FAU400

Poor

Over: TRIB TO AUX SABLE CR

.32 MI E BRISBIN RD, Grundy, IL

Built 1984 Load: 27.9 t ADT: 600

BROWN ROAD TR-150

Poor

Over: WALLEY RUN

.9 MI S MINOOKA RD, Grundy, IL

Built 1979 Load: 27.9 t ADT: 75

GOODFARM RD TR 155

Poor

Over: E FORK MAZON RIVER

.96 MI E STORM RD, Grundy, IL

Built 1978 Load: 27.9 t ADT: 50

HALPIN RD TR-208

Poor

Over: TR1B E. FK.MAZON RIV

.64 MI S. RICE RD., Grundy, IL

Built 1991 Load: 28.2 t ADT: 75

TR 120 OLD MAZON R

Poor

Over: JOHNNY RUN CREEK

.5 MI S REED RD, Grundy, IL

Built 1982 Load: 29.2 t ADT: 50

OLD MAZON RD TR 12

Poor

Over: W FK MAZON RIVER

.4 MI S SUCKER ROAD, Grundy, IL

Built 1983 Load: 29.5 t ADT: 275

TR 115

Poor

Over: MURRAY SLUICE

3/4M S,3/4M E MAZON, Grundy, IL

Built 1996 Load: 29.5 t ADT: 275

TR 155 GOODFARM RD

Poor

Over: TRIB E FK MAZON RIV

.42 MI E LINCOLN RD, Grundy, IL

Built 1987 Load: 29.8 t ADT: 50

TR 140 CAMPBELL RO

Poor

Over: JOHNNY RUN CREEK

.33 MI S ILL RT 113, Grundy, IL

Built 1982 Load: 30.8 t ADT: 75

GORE RD. TR-41

Poor

Over: W. FK. NETTLE CR

0.35 MI W.ASHTON RD, Grundy, IL

Built 1990 Load: 31.4 t ADT: 425

TR70 SCOTTSCHOOL R

Poor

Over: WEST FORK NETTLE CR

.18 MI S HOGE RD, Grundy, IL

Built 1981 Load: 32.1 t ADT: 225

TR 106 ASHTON RD

Poor

Over: E FK NETTLE CREEK

0.08 MI S NELSON RD, Grundy, IL

Built 1986 Load: 32.4 t ADT: 225

TR-110 DWIGHT RD

Poor

Over: JOHNNY RUN

.08 MI N MINE RD, Grundy, IL

Built 1981 Load: 32.4 t ADT: 150

GOODFARM RD TR-155

Poor

Over: TRIB E FK MAZON RIV

.13 MI E HALPIN RD, Grundy, IL

Built 1980 Load: 32.4 t ADT: 50

TR 161 STONEWALL R

Poor

Over: TRIB E FK MAZON R

.06 MI W KANKAKEE RD, Grundy, IL

Built 1988 Load: 32.4 t ADT: 75

TR 155/GOODFARM RD

Poor

Over: E FORK MAZON RIVER

1 S SOUTH WILMINGTON, Grundy, IL

Built 1999 Load: 33.4 t ADT: 50

HOGE RD TR-13

Poor

Over: TRIB TO NETTLE CREEK

0.06 MI E OF CH 21, Grundy, IL

Built 1976 Load: 37.3 t ADT: 25

TR 2 LA SALLE RD

Poor

Over: TRIB TO JOHNNY RUN

.15 MI S SCULLY RD, Grundy, IL

Built 1985 Load: 37.9 t ADT: 25

TR-91B VALERIO RD

Structurally Deficient

Over: CLAYPOOL DR DITCH

.05 MI W WILL RD, Grundy, IL

Built 1916 ADT: 100

CARBON HILL RD CH3

Structurally Deficient

Over: EAST FK MAZON RIVER

0.91 MI S OF FAS 289, Grundy, IL

Built 1977 Load: 6.2 t ADT: 1,550

GRAND RIDGE ROAD

Structurally Deficient

Over: HOG RUN

0.1 MI E LASALLE RD, Grundy, IL

Built 1939 Load: 9.1 t ADT: 1,150

BRACEVILLE RD CH C

Structurally Deficient

Over: CREEK

0.4 MI E OF TYNAN RD, Grundy, IL

Built 1963 Load: 10.7 t ADT: 1,450

GRAND RIDGE ROAD

Structurally Deficient

Over: WAUPECON CREEK

0.35 MI W VERONA RD, Grundy, IL

Built 1939 Load: 11.3 t ADT: 1,150

TR-174A TABLER RD

Structurally Deficient

Over: I & M CANAL

.02 MI NO CEMETERY R, Grundy, IL

Built 1961 Load: 24.3 t ADT: 500

TR-7 (Aiport Road)

Structurally Deficient

Over: W FORK NETTLE CREEK

0.21 MI E OF TR 28, Grundy, IL

Built 1979 Load: 24.6 t ADT: 125

TR-7 (Airport Road

Structurally Deficient

Over: EAST FORK NETTLE CR

0.65 MI W OF TR 86, Grundy, IL

Built 1980 Load: 25.3 t ADT: 225

FAS-1273 (DuPont R

Structurally Deficient

Over: Waupecan Creek

0.4 MI W OF CH 7, Grundy, IL

Built 1957 Load: 25.3 t ADT: 1,400

TR159A STONEWALL R

Structurally Deficient

Over: TRIB E FK MAZON RIV

0.30 MI W OF CH-16, Grundy, IL

Built 1974 Load: 25.6 t ADT: 50

NORTHERN AVE

Structurally Deficient

Over: NETTLE CREEK

NORT AVE OV NETTLE C, Grundy, IL

Built 1969 Load: 25.6 t ADT: 700

PRAIRIE RD TR-123A

Structurally Deficient

Over: MURRAY RUN

.27 MI E DWIGHT RD, Grundy, IL

Built 1976 Load: 25.9 t ADT: 75

TR-7 (Airport Road

Structurally Deficient

Over: W FORK NETTLE CREEK

1.05 MI E OF TR 28, Grundy, IL

Built 1975 Load: 26.9 t ADT: 125

NORTH RD TR-11

Structurally Deficient

Over: COLLINS RUN

.15 MI E BRISBIN RD, Grundy, IL

Built 1976 Load: 27.5 t ADT: 375

BRISBIN RD FAU401

Structurally Deficient

Over: COLLINS RUN

1.43 MI S MINOOKA RD, Grundy, IL

Built 1978 Load: 27.9 t ADT: 1,100

NETTLE CREEK RD CH

Structurally Deficient

Over: WEST FORK NETTLE CR

0.36 MI N OF TR 39, Grundy, IL

Built 1976 Load: 28.5 t ADT: 175

GRAND RIDGE ROAD

Structurally Deficient

Over: BILLS RUN

0.6 MI E KINSMAN RD, Grundy, IL

Built 1939 Load: 28.5 t ADT: 1,150

Read our methodology — how this data is sourced, computed, and verified.

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial