DeKalb County, IL

264 public highway bridges

DeKalb County Bridge Snapshot

DeKalb County, Illinois contains 264 public highway bridges in the FHWA National Bridge Inventory. Roughly 38.3% are rated “Good,” 42.4% “Fair,” 12.5% “Poor,” and 12.5% 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.

264
Total Bridges
38.3%
Good
12.5%
Poor
12.5%
Structurally Deficient

Condition Distribution

Good
38.3% (101)
Fair
42.4% (112)
Poor
12.5% (33)
SD
12.5% (33)

All Bridges (264)

MAPLEWOOD ROAD

Fair

Over: BR LITTLE INDIAN CRK

475N 1075E, DeKalb, IL

Built 1989 Load: 32.4 t ADT: 25

LELAND RD

Fair

Over: LITTLE INDIAN CREEK

290N 750E, DeKalb, IL

Built 1997 Load: 32.4 t ADT: 350

COLLEGE AVENUE

Fair

Over: SO BR KISHWAUKEE RIV

COLLEGE AVE DEKALB, DeKalb, IL

Built 1962 Load: 32.4 t ADT: 550

PARK ROAD

Fair

Over: INDIAN CREEK

SHABBONA STATE PARK, DeKalb, IL

Built 1976 Load: 32.4 t ADT: 425

I-88

Fair

Over: STREAM

.50 MI E OF CNTY LIN, DeKalb, IL

Built 1972 Load: 32.4 t ADT: 24,000

AIRPORT RD

Fair

Over: E BR KISHWAUKEE RV

2300N 1510E, DeKalb, IL

Built 1964 Load: 33.0 t ADT: 1,950

PEARL STREET

Fair

Over: BULL RUN CREEK

3070N 540E, DeKalb, IL

Built 1963 Load: 33.7 t ADT: 1,050

IL 72 FAP 553

Fair

Over: S BR KISHWAUKEE RIV.

W EDGE GENOA, DeKalb, IL

Built 1931 Load: 34.3 t ADT: 6,000

IL 72 FAP 553

Fair

Over: UNNAMED CREEK

0.3 MI. W. KIRKLAND, DeKalb, IL

Built 1991 Load: 34.3 t ADT: 2,150

IL 23 & 72

Fair

Over: DEER CREEK

0.5 MI W JCT IL 23 N, DeKalb, IL

Built 1987 Load: 34.7 t ADT: 8,100

US 30 FAP 573

Fair

Over: BN RR

.5 MI E OF SHABBONA, DeKalb, IL

Built 1982 Load: 35.6 t ADT: 3,050

IL 64 FAP 17

Fair

Over: OWENS CREEK

5 MI. E. OGLE CO LN, DeKalb, IL

Built 1992 Load: 36.0 t ADT: 4,250

OAK STREET

Fair

Over: LITTLE ROCK CREEK

940N 1650E, DeKalb, IL

Built 1956 Load: 36.6 t ADT: 325

US 30 FAP 573

Fair

Over: LITTLE ROCK CREEK

.5 MI W HINCKLEY, DeKalb, IL

Built 1987 Load: 36.9 t ADT: 3,150

IL 72 FAP 553

Fair

Over: LEE SLOUGH

1.5 MI W KINGSTON, DeKalb, IL

Built 1987 Load: 37.9 t ADT: 2,300

IL 72 FAP 553

Fair

Over: DRAINAGE DITCH

3 MI NW OF KIRKLAND, DeKalb, IL

Built 1990 Load: 37.9 t ADT: 2,150

I-88

Fair

Over: STREAM

3.1 MI W OF ILL 23, DeKalb, IL

Built 1972 Load: 38.2 t ADT: 24,000

BRICKVILLE RD

Fair

Over: E BR KISHWAUKEE RV

2530N 1350E, DeKalb, IL

Built 1962 Load: 38.6 t ADT: 1,550

TR-116 (JOHNSON RD

Fair

Over: LEE SLOUGH CREEK

2875N 750E, DeKalb, IL

Built 1955 Load: 39.2 t ADT: 75

LEE ROAD

Fair

Over: LITTLE ROCK CREEK

1100N 1310E, DeKalb, IL

Built 1977 Load: 39.2 t ADT: 225

IL 38 FAP 567

Fair

Over: E. BR. KILBUCK CREEK

1.5 MI. E. CRESTON, DeKalb, IL

Built 1995 Load: 39.5 t ADT: 5,750

IL 64 FAP 17

Fair

Over: S BR KISHWAUKEE RIV.

1.5 MI W JCT IL 23, DeKalb, IL

Built 1940 Load: 42.4 t ADT: 7,650

I-88 EB

Fair

Over: C&NW RR

SOUTH OF DEKALB, DeKalb, IL

Built 1974 Load: 42.4 t ADT: 12,000

I-88 WB

Fair

Over: C&NW RR

SOUTH OF DEKALB, DeKalb, IL

Built 1974 Load: 42.4 t ADT: 12,000

MILLER RD

Fair

Over: LITTLE ROCK CREEK

1200N 1205E, DeKalb, IL

Built 1961 Load: 42.9 t ADT: 25

RIMSNIDER RD

Fair

Over: LITTLE ROCK CREEK

1010N 1400E, DeKalb, IL

Built 1960 Load: 47.3 t ADT: 125

IL 72 FAP 553

Fair

Over: SOO LINE/IC & E RR

W EDGE OF KIRKLAND, DeKalb, IL

Built 2006 Load: 48.3 t ADT: 2,150

ILL 72

Fair

Over: COON CREEK

.5 MI W KANE CO LN, DeKalb, IL

Built 1989 Load: 48.6 t ADT: 4,950

IL 23(FAP 324)

Fair

Over: CC & PAC. RR

0.7 MI S JCT ILL 72, DeKalb, IL

Built 1925 Load: 62.2 t ADT: 4,350

IL 23

Fair

Over: DRAINAGE DITCH

2.4 MI S OF I88, DeKalb, IL

Built 1926 Load: 79.1 t ADT: 3,950

WATERMAN ROAD

Good

Over: BR OF SOMONAUK CREEK

700N 900E, DeKalb, IL

Built 1968 Load: 27.5 t ADT: 300

I-88

Good

Over: STREAM

4.3 MI E OGLE CO LN, DeKalb, IL

Built 1972 Load: 29.8 t ADT: 24,000

SOMONAUK RD.(FAS96

Good

Over: SOMONAUK CREEK

500N. 1540E., DeKalb, IL

Built 2017 Load: 30.8 t ADT: 3,200

BASE LINE RD

Good

Over: S BR KISHWAUKEE RV

3000N 1240E, DeKalb, IL

Built 1965 Load: 30.8 t ADT: 1,550

IL 23

Good

Over: SOMONAUK CREEK

2.3 MI. S. OF US 30, DeKalb, IL

Built 1994 Load: 32.4 t ADT: 2,150

IL 64 FAP 307

Good

Over: DITCH

1.04 MI E OF IL 23N, DeKalb, IL

Built 2002 Load: 32.4 t ADT: 7,700

IL 72 FAP 553

Good

Over: S BR KISHWAUKEE RIVR

IN KINGSTON (W), DeKalb, IL

Built 2004 Load: 32.4 t ADT: 2,850

IL 64 FAP 17

Good

Over: SE BR. OWENS CREEK

7.26 MI W OF IL 23(S, DeKalb, IL

Built 2002 Load: 32.4 t ADT: 4,250

PEACE RD

Good

Over: BR. KISHWAUKEE RIVER

2640N , 1380E, DeKalb, IL

Built 1996 Load: 32.4 t ADT: 12,300

CHICAGO RD

Good

Over: BR INDIAN CREEK

430N 200E, DeKalb, IL

Built 2007 Load: 32.4 t ADT: 1,200

KIRKLAND ROAD

Good

Over: KINGSBURY CREEK

3500N 380E, DeKalb, IL

Built 2001 Load: 32.4 t ADT: 225

SHABBONA RD

Good

Over: S BR KISHWAUKEE RV

1100N 320E, DeKalb, IL

Built 2007 Load: 32.4 t ADT: 675

SUYDAM RD

Good

Over: BUCK BR SOMONAUK CRK

200N 1395E, DeKalb, IL

Built 2015 Load: 32.4 t ADT: 775

CH 26

Good

Over: S Br Kishwaukee Rive

3250N 980E, DeKalb, IL

Built 2015 Load: 32.4 t ADT: 1,600

CHICAGO RD

Good

Over: BR LITTLE INDIAN CR

1170 E 550 N, DeKalb, IL

Built 2007 Load: 32.4 t ADT: 1,550

COLTONVILLE ROAD

Good

Over: KISHWAUKEE RIVER

2370N 1135E, DeKalb, IL

Built 2016 Load: 32.4 t ADT: 5,250

OLD STATE ROAD

Good

Over: OWENS CREEK

2785 N 385 E, DeKalb, IL

Built 2011 Load: 32.4 t ADT: 1,050

perry rd.CH7

Good

Over: Battle creek

1500N 1490E, DeKalb, IL

Built 2014 Load: 32.4 t ADT: 2,150

W CO Line Rd (FAS1

Good

Over: Dry Run

1030N 00E, DeKalb, IL

Built 2014 Load: 32.4 t ADT: 475

FAS-96 (Somonauk R

Good

Over: Little Rock Creek

915N 1550E, DeKalb, IL

Built 2018 Load: 32.4 t ADT: 3,050

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