County profile · official public datasets

DuPage County, IL

344 public highway bridges tracked in the FHWA National Bridge Inventory: 37.5% rated Good, 54.4% Fair, 8.1% Poor.

344
Public bridges
37.5%
Good condition
8.1%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

DuPage County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

55th
of 102 on Poor share
8.1%
Poor-condition share
344
public highway bridges
1985
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

DuPage County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, DuPage County ranks #55 of 102 Illinois counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.1%). DuPage County, Illinois contains 344 public highway bridges. Roughly 37.5% are rated “Good,” 54.4% “Fair,” and 8.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

344

Public highway bridges in DuPage County

Good condition

37.5%

129 of 344 rated 7-9

Fair condition

54.4%

187 of 344 rated 5-6

Poor condition

8.1%

28 of 344 rated 4 or below

In-state Poor-share rank

#55 of 102

Among Illinois counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 344 NBI-tracked bridges by lowest applicable component rating.

Good
37.5% (129)
Fair
54.4% (187)
Poor
8.1% (28)

DuPage County's Poor-condition bridges carry 170,375 vehicle crossings a day

That is 1.7% of the county's reported daily bridge traffic on 8.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 6,085 crossings a day against 23,322 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 343 of 344 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

37.2% of DuPage County's bridges have passed the 50-year mark

128 of the 344 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 37.5% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 14.7% of the county's Poor-condition bridge traffic

IL 38 over WINFIELD CREEK, built 1982, carries 25,000 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 28-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 170,375 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When DuPage County's bridges were built

344 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1980s, when 69 of the county's bridges still in the inventory were built, which is 20.1% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1985, 6 years newer than the Illinois average of 1979.

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How DuPage County compares with Illinois's closest counties by inventory size

The 5 Illinois counties nearest DuPage County in number of bridges, with their condition splits. Its 8.1% Poor share is the 4th-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1982 is in line with the group.

Showing the 5 closest of 101 Illinois counties eligible for comparison.

Bridge inventory size and condition shares for DuPage County and the 5 Illinois counties closest to it in inventory size
County Bridges Poor
Peoria County 352 18.2%
Macon County 346 15.6%
Kankakee County 344 6.4%
DuPage County (this page) 344 8.1%
Stephenson County 342 2.6%
Kane County 336 6.3%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to DuPage County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for DuPage County, both outside Illinois so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside IL (344 bridges here).

Similar average build year

Nearest mean year-built outside IL (1985 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 344 Good 129 Fair 187 Poor 28

Good-condition bridges (129)

I-88

Good

Over: Prairie Path

0.6 M W OF ILL 59, DuPage, IL

Built 2021 ADT: 105,400

I-290 EB

Good

Over: GRAND AVE

0.2 M SE OF IL 83, DuPage, IL

Built 1969 Load: 22.4 t ADT: 61,850

JACQUELINE DRIVE

Good

Over: ST.JOSEPH CREEK

400 FT S GILBERT, DuPage, IL

Built 1961 Load: 25.9 t ADT: 75

I-88 EB

Good

Over: SALT CREEK

1.3M.E.IL-83, DuPage, IL

Built 1958 Load: 26.9 t ADT: 59,550

GARY MILL RD

Good

Over: W BR DU PAGE RIVER

0.02 M E OF IL 59, DuPage, IL

Built 1988 Load: 30.1 t ADT: 5,600

GARY AV

Good

Over: WINFIELD CREEK

.83 MI SO OF GENEVA, DuPage, IL

Built 1999 Load: 30.1 t ADT: 10,200

IL 390 WB EOH

Good

Over: MEACHAM/MEDINAH RD

EAST OF ROSELLE RD, DuPage, IL

Built 1992 Load: 30.5 t ADT: 47,400

Walnut Avenue

Good

Over: Prentiss Creek

0.3 Mi. N. Hobson Rd, DuPage, IL

Built 1986 Load: 30.5 t ADT: 1,300

I-355 SB

Good

Over: ARMY TRAIL RD.

0.3M.W.OF IL-53, DuPage, IL

Built 1989 Load: 30.8 t ADT: 67,300

US 20 (LAKE ST)

Good

Over: WESTWOOD CREEK

1.1 M E OF IL 53, DuPage, IL

Built 2006 Load: 32.4 t ADT: 31,300

IL 19

Good

Over: NORDIC SPRING BROOK

0.5 M E OF I-290, DuPage, IL

Built 1925 Load: 32.4 t ADT: 13,400

IL 56

Good

Over: WILLOWAY BROOK

2 M W OF IL 53, DuPage, IL

Built 1990 Load: 32.4 t ADT: 26,800

IL 83

Good

Over: DRAINAGE DITCH

N OF 63RD ST, DuPage, IL

Built 1990 Load: 32.4 t ADT: 53,900

IL 64

Good

Over: KLEIN CREEK

3.5 M EAST IL 59, DuPage, IL

Built 2001 Load: 32.4 t ADT: 31,400

IL 64

Good

Over: W BR DUPAGE RV TRB#4

0.5 M W ST CHAS RD, DuPage, IL

Built 2001 Load: 32.4 t ADT: 35,100

FAU-2585 Medinah R

Good

Over: Meacham Creek

0.4 MI S I-390, DuPage, IL

Built 1992 Load: 32.4 t ADT: 6,150

IL 56

Good

Over: DITCH

1 M E OF HIGHLAND, DuPage, IL

Built 1974 Load: 32.4 t ADT: 41,000

IL 19

Good

Over: MEACHAM CREEK

.17 M E OF MEDINH RD, DuPage, IL

Built 2009 Load: 32.4 t ADT: 14,200

BAILEY ROAD

Good

Over: WEST BR DUPAGE R

N OF WILL CO E WASH, DuPage, IL

Built 1969 Load: 32.4 t ADT: 4,450

ST CHARLES RD

Good

Over: W BRANCH DUPAGE RIV

1.5 MI E IL-59, DuPage, IL

Built 2005 Load: 32.4 t ADT: 275

FULLERTON AVE

Good

Over: SALT CREEK

0.5 MI W IL 83, DuPage, IL

Built 2013 Load: 32.4 t ADT: 950

IL 53

Good

Over: ST JOSEPH CREEK

0.2 M N OF US 34, DuPage, IL

Built 2013 Load: 32.4 t ADT: 23,200

MIDWEST ROAD

Good

Over: GINGER CREEK

0.5 MI S I-88, DuPage, IL

Built 2001 Load: 32.4 t ADT: 7,300

FAP-345 (York Rd)

Good

Over: Bensenville Ditch

350 N OF IL19, DuPage, IL

Built 1995 Load: 32.4 t ADT: 26,500

Army Trail Rd

Good

Over: E Br DuPage River

1.1 Mi W I-355, DuPage, IL

Built 2004 Load: 32.4 t ADT: 33,200

Finley Road

Good

Over: Lacey Creek

0.8 Mi. N. of US 34, DuPage, IL

Built 1987 Load: 32.4 t ADT: 10,900

63rd Street

Good

Over: Prentiss Creek

1.2 Mi. E. Ill. 53, DuPage, IL

Built 1986 Load: 32.4 t ADT: 19,100

JOLIET AND WILSON

Good

Over: KRESS CREEK

0.25 M. W.OF IL 59, DuPage, IL

Built 2013 Load: 32.4 t ADT: 8,500

WINFIELD ROAD

Good

Over: SPRING BROOK CREEK

0.8 M N OF IL 38, DuPage, IL

Built 2013 Load: 32.4 t ADT: 6,350

International Park

Good

Over: Black Partridge Creek

0.1 MI W OF WOODWARD AVE, DuPage, IL

Built 1998 Load: 32.4 t ADT: 4,200

THUNDERBIRD TRAIL

Good

Over: KLEIN CREEK

150 FT E SILVERLEAF, DuPage, IL

Built 1974 Load: 32.4 t ADT: 775

ILLINI DRIVE

Good

Over: KLEIN CREEK

200 W. HIAWATHA DR, DuPage, IL

Built 2014 Load: 32.4 t ADT: 1,650

Oak Street

Good

Over: BNSF RR

0.7MI.N.ofChicagoAve, DuPage, IL

Built 2015 Load: 32.4 t ADT: 3,100

MS-2020 (Maple Av)

Good

Over: Spring Brook

300 FT S OF IL-19, DuPage, IL

Built 2015 Load: 32.4 t ADT: 475

SHORT STREET

Good

Over: E BRANCH DUPAGE RIV

800 W IL 53, DuPage, IL

Built 2011 Load: 32.4 t ADT: 1,400

MAIN ST

Good

Over: ST JOESEPH CREEK

.30 M N OF OGDEN AV, DuPage, IL

Built 1991 Load: 32.4 t ADT: 1,800

BURLINGTON AV

Good

Over: E BRANCH DUPAGE R

900W OF IL53, DuPage, IL

Built 1989 Load: 32.4 t ADT: 1,100

VARSITY DR.

Good

Over: ROTT CREEK

N.OF UNIVERSITY LA., DuPage, IL

Built 1978 Load: 32.4 t ADT: 250

REGENCY WOODS DR.

Good

Over: WILLOW WAY CR.

W.OF LEASK LANE, DuPage, IL

Built 1989 Load: 32.4 t ADT: 175

Four Lakes Avenue

Good

Over: E. Br. DuPage River

0.4 MI W IL 53, DuPage, IL

Built 2016 Load: 32.4 t ADT: 3,800

HILLSIDE RD

Good

Over: WEST BR DUPAGE R

150 FT W MELODY LA., DuPage, IL

Built 1960 Load: 32.4 t ADT: 2,950

MAIN ST

Good

Over: DUPAGE RIVER

MAIN ST & CHICAGO AV, DuPage, IL

Built 2005 Load: 32.4 t ADT: 5,900

JEFFERSON AV

Good

Over: W. BR. DUPAGE RV

.5M E OF RIVER RD, DuPage, IL

Built 2010 Load: 32.4 t ADT: 2,200

Station Blvd

Good

Over: Waubonsie Creek

0.06 MI NE New York, DuPage, IL

Built 2007 Load: 32.4 t ADT: 1,450

Station Blvd.

Good

Over: Waubonsie Creek

.02 MI N Meridian Lk, DuPage, IL

Built 2016 Load: 32.4 t ADT: 1,000

S WOODLAWN ST

Good

Over: WINFIELD CRK

0.2 MI N IL-38, DuPage, IL

Built 1990 Load: 32.4 t ADT: 1,000

MAIN STREET

Good

Over: WINFIELD CREEK

500 S of Cole Av, DuPage, IL

Built 2013 Load: 32.4 t ADT: 6,450

MANCHESTER ROAD

Good

Over: SPRING BROOK

550 FT E OF EAST ST, DuPage, IL

Built 1978 Load: 32.4 t ADT: 2,350

WOODRIDGE DRIVE

Good

Over: CREEK PEDESTRIAN WLK

.7 MI N 75TH STREET, DuPage, IL

Built 1973 Load: 32.4 t ADT: 4,050

WOOD DALE RD

Good

Over: IL 390

2.2 MI E OF I 290, DuPage, IL

Built 2015 Load: 32.4 t ADT: 9,850

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

Related

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.