County profile · official public datasets

Will County, IL

649 public highway bridges tracked in the FHWA National Bridge Inventory: 43.1% rated Good, 46.4% Fair, 10.5% Poor.

649
Public bridges
43.1%
Good condition
10.5%
Poor condition

The verdict

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

Will County posts a higher-than-median Poor-condition share among rated counties in the state across large county bridge inventory.

76th
of 102 on Poor share
10.5%
Poor-condition share
649
public highway bridges
1983
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.

Will County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Will County ranks #76 of 102 Illinois counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.5%). Will County, Illinois contains 649 public highway bridges. Roughly 43.1% are rated “Good,” 46.4% “Fair,” and 10.5% “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

649

Public highway bridges in Will County

Good condition

43.1%

280 of 649 rated 7-9

Fair condition

46.4%

301 of 649 rated 5-6

Poor condition

10.5%

68 of 649 rated 4 or below

In-state Poor-share rank

#76 of 102

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

Condition distribution

Share of 649 NBI-tracked bridges by lowest applicable component rating.

Good
43.1% (280)
Fair
46.4% (301)
Poor
10.5% (68)

Will County's Poor-condition bridges carry 825,585 vehicle crossings a day

That is 13% of the county's reported daily bridge traffic on 10.5% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 12,141 crossings a day against 7,646 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 647 of 649 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

33% of Will County's bridges have passed the 50-year mark

214 of the 649 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 43.1% 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 12.9% of the county's Poor-condition bridge traffic

I- 55 over IL 53, built 1980, carries 106,200 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 68-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 825,585 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Will County's bridges were built

649 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 132 of the county's bridges still in the inventory were built, which is 20.3% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1983) matches the Illinois average (1979).

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

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

The 5 Illinois counties nearest Will County in number of bridges, with their condition splits. Its 10.5% Poor share is the 4th-lowest of these 6. Its average build year of 1983 against a peer-group mean of 1980 is in line with the group.

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

Bridge inventory size and condition shares for Will County and the 5 Illinois counties closest to it in inventory size
County Bridges Poor
Champaign County 727 8.7%
Will County (this page) 649 10.5%
McLean County 624 2.9%
Livingston County 579 8.3%
Iroquois County 570 14.4%
LaSalle County 528 12.3%

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 Will 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 Will County, both outside Illinois so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside IL (649 bridges here).

Similar average build year

Nearest mean year-built outside IL (1983 here).

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

All 649 Good 280 Fair 301 Poor 68

Good-condition bridges (280)

BRUNS RD

Good

Over: FORKED CREEK

3.1 MI E US-45, Will, IL

Built 1999 Load: 32.4 t ADT: 225

WOLF RD

Good

Over: UNNAMED SWALE

WOLF & LAPORTE, Will, IL

Built 1995 Load: 32.4 t ADT: 10,800

80TH AV

Good

Over: TRIB OF FORKED CREEK

0.8MI S.MAN-MONEE RD, Will, IL

Built 1997 Load: 32.4 t ADT: 350

DRALLE RD

Good

Over: TRIB PRAIRIE CRK

0.8 MI W.US 45, Will, IL

Built 1998 Load: 32.4 t ADT: 75

104TH AV

Good

Over: TRIB TO PRAIRIE CRK

0.1 MI S STUENKEL RD, Will, IL

Built 1998 Load: 32.4 t ADT: 75

80TH AVE

Good

Over: FORKED CREEK

0.75 MI N.MANHATTAN-, Will, IL

Built 1997 Load: 32.4 t ADT: 750

NEW AVE

Good

Over: SMALL STREAM

0.4 M N IL 171, Will, IL

Built 2002 Load: 32.4 t ADT: 5,450

EGYPTION TRAIL RD

Good

Over: TRIB ROCK CREEK

0.3 MI N.PAULINE RD, Will, IL

Built 1984 Load: 32.4 t ADT: 250

RIDGELAND AVENUE

Good

Over: FORKED CREEK

1.2 MI S. COOK CO., Will, IL

Built 1985 Load: 32.4 t ADT: 1,450

HARLEM AVE

Good

Over: FORKED CREEK

1.1 MI N MAN MONEE R, Will, IL

Built 1986 Load: 32.4 t ADT: 2,650

80TH AV

Good

Over: S. BR FORKED CR.

2M SO OF PAULING RD, Will, IL

Built 2002 Load: 32.4 t ADT: 350

US 30

Good

Over: STREAM

0.3 M W OF WOLF, Will, IL

Built 2006 Load: 32.4 t ADT: 27,300

DRALLE RD

Good

Over: BR OF FORKED CREEK

4.5M E.US 45, Will, IL

Built 2009 Load: 32.4 t ADT: 175

DRALLE ROAD

Good

Over: TRIB OF FORKED CREEK

3.9 MILES E. OF US45, Will, IL

Built 2011 Load: 32.4 t ADT: 275

Pauling Road (TR 2

Good

Over: Forked Crek

0.75 M E of US 45, Will, IL

Built 2015 Load: 32.4 t ADT: 325

KLEMME ROAD

Good

Over: KLEMME CREEK

1.6 MI SO EXCHANGE, Will, IL

Built 1984 Load: 32.4 t ADT: 650

BEMES RD

Good

Over: KLEMME CREEK

.25MI W KLEMME RD, Will, IL

Built 2009 Load: 32.4 t ADT: 1,450

OLD POST RD

Good

Over: PLUM CREEK

1 MI N EXCHANGE AV, Will, IL

Built 2004 Load: 32.4 t ADT: 1,500

S ARSENAL RD

Good

Over: TRIB OF JORDAN CK

1.8 MI E OF IL53, Will, IL

Built 2006 Load: 32.4 t ADT: 625

BARR RD

Good

Over: BR OF FORKED CREEK

0.37 MI E CEDAR RD, Will, IL

Built 1994 Load: 32.4 t ADT: 225

WALSH AVE

Good

Over: BR. OF FORKED CREEK

1.0M E OF WILTON CTR, Will, IL

Built 1996 Load: 32.4 t ADT: 50

KENNEDY RD

Good

Over: S BR FORKED CREEK

1.4M E WILTON CENTRD, Will, IL

Built 1996 Load: 32.4 t ADT: 175

CORNING AVENUE

Good

Over: BLACK WALNUT CREEK

0.5 MI E OF IL 50, Will, IL

Built 1985 Load: 32.4 t ADT: 625

EAGLE LAKE RD.

Good

Over: BLACK WALNUT CR.(E)

2.4M.E OF IL 50, Will, IL

Built 1990 Load: 32.4 t ADT: 225

RIDGELAND AVE

Good

Over: BLACK WALNUT CREEK

0.2 M S PEOTONE/BEEC, Will, IL

Built 1990 Load: 32.4 t ADT: 175

EAGLE LAKE RD

Good

Over: BLACK WALNUT CREEK

2.5 MI E IL-50, Will, IL

Built 2004 Load: 32.4 t ADT: 225

ASHLAND AVE.

Good

Over: STREAM

0.4 M N.EAGLE LK RD, Will, IL

Built 1991 Load: 32.4 t ADT: 750

CORNING ROAD

Good

Over: TRIM CREEK TRIB.

0.3 MI W.IL 1, Will, IL

Built 1991 Load: 32.4 t ADT: 250

BORIO DRIVE

Good

Over: WET LANDS

0.39 MI E CH88, Will, IL

Built 2005 Load: 32.4 t ADT: 1,150

WHISPER CREEK WAY

Good

Over: MARLEY CREEK

0.35 MI N OF REGAN, Will, IL

Built 2007 Load: 32.4 t ADT: 900

WOLF ROAD

Good

Over: JACKSON CREEK

0.56 MI S LARAWAY RD, Will, IL

Built 2003 Load: 32.4 t ADT: 3,100

S WALNUT RIDGE CT

Good

Over: HICKORY CREEK TRIB

0.15 MI N OF US 30, Will, IL

Built 1995 Load: 32.4 t ADT: 200

LEDGESTONE WAY

Good

Over: RET POND CONNECT CUL

0.14 S OF LARAWAY RD, Will, IL

Built 2002 Load: 32.4 t ADT: 300

116TH AVE

Good

Over: RET POND CONNECT CUL

0.45 MI S OF LARAWAY, Will, IL

Built 2003 Load: 32.4 t ADT: 2,050

MADELINE ROAD

Good

Over: HICKORY CREEK TRIB

0.6MI S LARAWAY RD, Will, IL

Built 2002 Load: 32.4 t ADT: 275

STEGER ROAD

Good

Over: HICKORY CREEK TRIB

0.1 M W OF HARLEM, Will, IL

Built 2000 Load: 32.4 t ADT: 3,200

BRUCE RD

Good

Over: FRACTION RUN CREEK

0.5 MI E/ FARRELL RD, Will, IL

Built 2007 Load: 32.4 t ADT: 3,850

80TH AVENUE

Good

Over: HICKORY CREEK TRIB

0.2MI S OF LARAWAY, Will, IL

Built 2000 Load: 32.4 t ADT: 1,650

Towne Center Blvd

Good

Over: Hammel Creek

0.1 M N of US 52, Will, IL

Built 2007 Load: 32.4 t ADT: 450

CORRECT CRAFT LN

Good

Over: JORDAN CREEK TRIB

0.5M E/IL53&PEOTONE, Will, IL

Built 2001 Load: 32.4 t ADT: 350

RATHJE ROAD

Good

Over: ROCK CREEK TRIBUTARY

0.42 M N CORNING AVE, Will, IL

Built 2020 Load: 32.4 t ADT: 1,050

Essington Road

Good

Over: Rock Run Creek

1.7N. US 52-1W I-55, Will, IL

Built 2021 Load: 32.4 t ADT: 16,800

Quadrangle Drive

Good

Over: Lily Cache Creek

0.53 MI. N. of I-55, Will, IL

Built 1998 Load: 32.4 t ADT: 1,250

South Orchard Driv

Good

Over: Lily Cache Creek

1.2 MI. N. OF I-55, Will, IL

Built 1996 Load: 32.4 t ADT: 1,300

119TH ST

Good

Over: LILY CACHE CREEK

1.3M W OF WEBER RD, Will, IL

Built 2002 Load: 32.4 t ADT: 9,050

LILY CACHE LANE

Good

Over: LILY CACHE CREEK

INT LILY&CANTBRY LN, Will, IL

Built 2010 Load: 32.4 t ADT: 13,600

185TH STREET

Good

Over: UNION DRAINAGE DITCH

0.10MI E OF 80TH AVE, Will, IL

Built 2012 Load: 32.4 t ADT: 1,850

SCHMIDT ROAD

Good

Over: LILY CACHE CREEK

1 MI S BOUGHTON RD, Will, IL

Built 2015 Load: 32.4 t ADT: 6,600

Northridge Avenue

Good

Over: Lily Cache Creek

.62 MI S Boughton Rd, Will, IL

Built 2000 Load: 32.4 t ADT: 1,700

Cardinal Creek Blv

Good

Over: Trim Creek

0.4 M N CH 24, Will, IL

Built 2005 Load: 32.4 t ADT: 350

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.