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

All bridges (344)

US 20 (LAKE ST)

Good

Over: WESTWOOD CREEK

0.60 M NW ADDISON RD, DuPage, IL

Built 2006 Load: 52.8 t ADT: 28,400

BURLINGTON/WARREN

Good

Over: BELMONT ROAD

0.14 S HADDOW AVE, DuPage, IL

Built 2012 Load: 52.8 t ADT: 1,650

I-290 WB TO IL 390

Good

Over: I-290SB 2 IL 390 EB

Just E of I290, DuPage, IL

Built 2016 Load: 53.1 t ADT: 14,900

IL 83 SB

Good

Over: I- 55

1.2 MI NW COOK CO, DuPage, IL

Built 1959 Load: 53.5 t ADT: 55,500

IL 83 NB

Good

Over: I- 55

1.2 M NW OF COOK CO, DuPage, IL

Built 1959 Load: 53.5 t ADT: 30,400

IL 53 (ROHLWING R

Good

Over: STREAM

0.2 M S OF IL 390, DuPage, IL

Built 2014 Load: 53.8 t ADT: 17,500

I-88 WB E-W TOLL

Good

Over: IL 53

0.1 MI E DUPAGE RVR, DuPage, IL

Built 2009 Load: 53.8 t ADT: 82,400

IL 83

Good

Over: MARION HILLS DITCH

0.05 M N of 63rd, DuPage, IL

Built 2015 Load: 54.1 t ADT: 53,900

I88WB CDRAMP EW TO

Good

Over: CERMACK RD

0.2 MI E IL 83, DuPage, IL

Built 2009 Load: 55.7 t ADT: 16,200

IL 64

Good

Over: RR - EJ&E AND UP

1.35 M W OF IL 59, DuPage, IL

Built 2012 Load: 57.3 t ADT: 31,700

HILL AVENUE

Good

Over: E. BR. DUPAGE RIV

N. IL 38 & W. IL 53, DuPage, IL

Built 2016 Load: 57.3 t ADT: 2,650

WB IL390

Good

Over: I290

100 N of Thorndale, DuPage, IL

Built 2016 Load: 58.3 t ADT: 24,800

IL 83

Good

Over: DRAINAGE DITCH

0.2 M N IL 38, DuPage, IL

Built 2021 Load: 59.0 t ADT: 62,900

I-88 WB E-W TOLLWA

Good

Over: 22ND ST (CERMAK RD)

0.2MI E OF IL 83, DuPage, IL

Built 2009 Load: 60.6 t ADT: 78,050

IL 83

Good

Over: WILLOW CREEK TRIB

0.14 M S of Thornd, DuPage, IL

Built 2017 Load: 73.2 t ADT: 34,700

IL-390 RAMP

Good

Over: WILLOW CREEK

0.1 MI W YORK RD, DuPage, IL

Built 2017 Load: 89.1 t ADT: 5,500

LINCOLN AVE

Poor

Over: WINFIELD CRK

0.6 MI W N MAIN ST, DuPage, IL

Built 1971 ADT: 800

WASHINGTON ST

Poor

Over: WEST BRANCH

WASH. ST. 1M S US 34, DuPage, IL

Built 1976 Load: 0.0 t ADT: 13,700

ARLINGTON Drive

Poor

Over: W BRANCH DUPAGE RIV

0.5M S US-20, DuPage, IL

Built 1971 Load: 0.0 t ADT: 2,350

FAU-3818 Mack Road

Poor

Over: W Br DuPage River

0.2 MI E IL 59, DuPage, IL

Built 1954 Load: 4.5 t ADT: 2,200

MS-4065 Creekside

Poor

Over: Spring Brook

500 FT S SPRNG GREEN, DuPage, IL

Built 1970 Load: 8.7 t ADT: 2,050

STONEBRIDGE TRAIL

Poor

Over: SPRING BROOK

500 FT S SPRNG GREEN, DuPage, IL

Built 1970 Load: 10.0 t ADT: 1,700

WARRENVILLE RD

Poor

Over: E.BRANCH DU PAGE RV

0.3 MI W IL 53, DuPage, IL

Built 1946 Load: 10.7 t ADT: 12,600

GENEVA ROAD

Poor

Over: W.BRANCH DU PAGE RV.

0.1 MI W WINFIELD RD, DuPage, IL

Built 1941 Load: 11.3 t ADT: 14,300

NANTUCKET DRIVE

Poor

Over: SAWMILL CREEK

.3 MI N I 55 FRTG RD, DuPage, IL

Built 1979 Load: 14.9 t ADT: 575

TIMBER LANE

Poor

Over: TRIB W. BR. DUPAGE R

0.34 MI E. FAIR OAKS, DuPage, IL

Built 1972 Load: 17.5 t ADT: 450

CRESCENT BOULEVARD

Poor

Over: E BR DU PAGE RIVER

0.1 M W IL 53, DuPage, IL

Built 1984 Load: 19.4 t ADT: 2,200

WESTERN AVENUE

Poor

Over: SAWMILL CREEK

.12 MI S I-55 FRONTA, DuPage, IL

Built 1949 Load: 19.4 t ADT: 75

ELIZABETH DRIVE

Poor

Over: SALT CREEK

700 FT E CH 22, DuPage, IL

Built 1973 Load: 19.8 t ADT: 2,400

BEECHER AVENUE

Poor

Over: W. BR. DUPAGE RIVER

0.25 M W WINFIELD RD, DuPage, IL

Built 1956 Load: 21.1 t ADT: 475

FAP-367 (Army TR R

Poor

Over: W BR DUPAGE RIVER

1.6 MI E IL 59, DuPage, IL

Built 1987 Load: 21.1 t ADT: 9,500

FAU-1369 (Schick R

Poor

Over: W Br. DuPage River

1.3 MI E. IL59, DuPage, IL

Built 1961 Load: 22.0 t ADT: 11,400

Woodridge Drive

Poor

Over: Crabtree Creek

0.32 MI S ILL 33, DuPage, IL

Built 1986 Load: 22.7 t ADT: 2,900

Fox Lane

Poor

Over: Salt Creek

.01 M W Salt Crk. Ln, DuPage, IL

Built 1976 Load: 24.3 t ADT: 650

IL 38

Poor

Over: WINFIELD CREEK

2.6 M E OF IL 59, DuPage, IL

Built 1982 Load: 26.2 t ADT: 25,000

IL 53

Poor

Over: GREAT WESTERN TRAIL

0.8 M S OF IL 64, DuPage, IL

Built 1936 Load: 29.8 t ADT: 18,300

Lane Court

Poor

Over: 63rd Street Ditch

.25 Mi W of Madison, DuPage, IL

Built 1997 Load: 32.4 t ADT: 100

PEBBLE CREEK DR.

Poor

Over: WILLOW WAY CREEK

W.OF LEASK LANE, DuPage, IL

Built 1980 Load: 32.4 t ADT: 400

MS-4410 StruckmanB

Poor

Over: W Br DuPage River

.1 MI E. BARTLETT RD, DuPage, IL

Built 1992 Load: 38.6 t ADT: 1,650

YORK ROAD

Poor

Over: I-88 E-W Toll Ramp

2M.E.OF IL-83, DuPage, IL

Built 1958 Load: 38.9 t ADT: 9,600

PARK ST.

Poor

Over: PALMER DR

0.5 MI. S. OF ILL 64, DuPage, IL

Built 1976 Load: 39.2 t ADT: 1,400

FAU-2652 S Villa A

Poor

Over: Sugar Creek

0.8 N IL-38/0.4 W 83, DuPage, IL

Built 1968 Load: 40.2 t ADT: 4,000

COUNTY FARM RD

Poor

Over: W BRANCH DU PAGE RIV

0.5 MI S Sterns Rd, DuPage, IL

Built 1929 Load: 41.8 t ADT: 17,100

CASS AVE

Poor

Over: I- 55

1.7 M W IL 83, DuPage, IL

Built 1960 Load: 49.2 t ADT: 12,500

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.