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 bridges (649)

QUIGLEY RD.

Fair

Over: JORDAN CREEK

0.8M E.OLD CHICAGORD, Will, IL

Built 1990 Load: 32.4 t ADT: 50

ALLOTT DRIVE

Fair

Over: JORDAN CREEK

1.7M E IL 53, Will, IL

Built 1995 Load: 32.4 t ADT: 250

BARR ROAD

Fair

Over: TRIB OF JORDAN CREEK

0.4 MI N E KAHLER RD, Will, IL

Built 1998 Load: 32.4 t ADT: 200

WILTON RD.

Fair

Over: STREAM

1.8 MI S US 52, Will, IL

Built 1986 Load: 32.4 t ADT: 50

WILTON RD. (128TH

Fair

Over: S.BR.FORKED CREEK

3.7 MI SO US 52, Will, IL

Built 1990 Load: 32.4 t ADT: 50

GOUGAR ROAD

Fair

Over: FORKED CREEK

0.9 MI S WIL PECT RD, Will, IL

Built 1991 Load: 32.4 t ADT: 20

GOUGAR ROAD

Fair

Over: FORKED CREEK

O.4M S WIL-PEOTO RD, Will, IL

Built 1993 Load: 32.4 t ADT: 75

TR-287 (Barr Rd)

Fair

Over: Forked Creek

0.5M W WILTON CENTRD, Will, IL

Built 1993 Load: 32.4 t ADT: 50

GOUGAR ROAD

Fair

Over: FORKED CREEK

0.2 M S WILM-PEOT RD, Will, IL

Built 1994 Load: 32.4 t ADT: 20

PEOTONE RD

Fair

Over: ROCK CREEK

1 MI W.PEOTONE, Will, IL

Built 1977 Load: 32.4 t ADT: 500

W North Peotone Rd

Fair

Over: ROCK CREEK

1 MI N PEOTONE, Will, IL

Built 1979 Load: 32.4 t ADT: 1,550

CENTER ROAD

Fair

Over: ROCK CREEK

0.6 MI NO. KKK ROAD, Will, IL

Built 1979 Load: 32.4 t ADT: 1,050

EAGLE LAKE RD.

Fair

Over: S.BRANCH FORKED CR.

0.8 MI E CENTER RD., Will, IL

Built 1980 Load: 32.4 t ADT: 100

PEOTONE RD

Fair

Over: S BR FORKED CR

0.2 MI S OFFNER RD, Will, IL

Built 1982 Load: 32.4 t ADT: 500

KENNEDY ROAD

Fair

Over: BLACK WALNUT CRK

.7M E of IL50, Will, IL

Built 1984 Load: 32.4 t ADT: 350

BARR ROAD

Fair

Over: S.BR.OF FORKED CREEK

0.4MI E. OF US45, Will, IL

Built 1985 Load: 32.4 t ADT: 100

KENNEDY RD

Fair

Over: ROCK CREEK

2.3 MI E US 45, Will, IL

Built 1985 Load: 32.4 t ADT: 125

FAS-6859 (Grn Gard

Fair

Over: S Br Forked Creek

1.2N KANKAKEE CO, Will, IL

Built 1992 Load: 32.4 t ADT: 100

KEDZIE AVE

Fair

Over: EXLINE SLOUGH

0.50 MI N KENNEDY RD, Will, IL

Built 1983 Load: 32.4 t ADT: 200

KENNEDY RD

Fair

Over: MARSHALL SLOUGH

2.5M.E.OF IL-50, Will, IL

Built 1988 Load: 32.4 t ADT: 350

EAGLE LAKE RD.

Fair

Over: BLACK WALNUT CR.(W)

1.9 M E OF IL 50, Will, IL

Built 1990 Load: 32.4 t ADT: 225

CENTRAL AVE.

Fair

Over: S.BR.ROCK CREEK

0.2M.N.OF WILL-KKK L, Will, IL

Built 1990 Load: 32.4 t ADT: 200

KENNEDY RD(319TH S

Fair

Over: EXLINE SLOUGH

0.4M.E OF KEDZIE AVE, Will, IL

Built 1991 Load: 32.4 t ADT: 100

HARLEM RD

Fair

Over: ROCK CREEK

1.8 M N PEOTONE, Will, IL

Built 1992 Load: 32.4 t ADT: 775

CRAWFORD AVE

Fair

Over: BLK WAL CR

1.4 M.SOF PAULIGG RD, Will, IL

Built 1993 Load: 32.4 t ADT: 35

WESTERN AV

Fair

Over: TRIB EXLINE SLOUGH

0.7 MI N KKK CO LINE, Will, IL

Built 1999 Load: 32.4 t ADT: 100

CORNING ROAD

Fair

Over: EX LINE SLOUGH

.25 M E KEDZIE, Will, IL

Built 2004 Load: 32.4 t ADT: 75

KENTUCKY RD

Fair

Over: PIKE CREEK

1.9 MI.E.IL 1, Will, IL

Built 1978 Load: 32.4 t ADT: 225

319TH ST

Fair

Over: TRIM CREEK

0.9 MI.W.IL 1, Will, IL

Built 1980 Load: 32.4 t ADT: 100

323RD ST

Fair

Over: PIKE CREEK

1.7 MI E.IL 1, Will, IL

Built 1983 Load: 32.4 t ADT: 35

YATES AVENUE

Fair

Over: TRIM CREEK

0.1 MI N.EAGLE LK RD, Will, IL

Built 1992 Load: 32.4 t ADT: 500

LEASURE RD.

Fair

Over: FORKED CREEK

100 NO OF IL 102, Will, IL

Built 1987 Load: 32.4 t ADT: 75

DANIELSON ROAD

Fair

Over: FORKED CREEK

0.8M N OF MANTERO RD, Will, IL

Built 1989 Load: 32.4 t ADT: 75

HAZELTON (BELL) RD

Fair

Over: FORKED CREEK

0.2 MI E LONG RD, Will, IL

Built 1997 Load: 32.4 t ADT: 25

RIVER CROSSING DRI

Fair

Over: DUPAGE RIVER

0.7M N OF I-80, Will, IL

Built 2003 Load: 32.4 t ADT: 175

119TH STREET

Fair

Over: EAST NORMAN DRAIN

0.1 M W OF IL 59, Will, IL

Built 2006 Load: 32.4 t ADT: 11,400

KILDEER DR

Fair

Over: LILY CACHE CREEK

0.4 MI S/BOUGHTON RD, Will, IL

Built 2013 Load: 32.4 t ADT: 1,950

ROYCE RD

Fair

Over: E BR DUPAGE RIVER

0.1 MI W. OF ILL 53, Will, IL

Built 1986 Load: 32.4 t ADT: 6,350

ESSINGTON ROAD

Fair

Over: LILY CACHE CREEK

0.5 MI S 127TH ST, Will, IL

Built 2001 Load: 32.4 t ADT: 2,200

127TH ST

Fair

Over: LILY CACHE CREEK

1.2 MI W I-55, Will, IL

Built 2001 Load: 32.4 t ADT: 5,650

CATON FARM ROAD.

Fair

Over: EJ&E RR

0.7 MI. E.OF US30, Will, IL

Built 1986 Load: 32.4 t ADT: 5,950

ELWOOD INTL PORT R

Fair

Over: JACKSON CREEK

0.5 M S ARSENAL RD, Will, IL

Built 2002 Load: 32.4 t ADT: 8,050

REBECCA RD

Fair

Over: TRIBUTARY ROCK RUN

100 FT S DEERPATH DR, Will, IL

Built 1986 Load: 32.4 t ADT: 50

FAIRLANE DRIVE

Fair

Over: TRIBUTARY ROCK RUN

200 FT N CAMBELL ST, Will, IL

Built 1986 Load: 32.4 t ADT: 650

BROADWAY ST

Fair

Over: JEFFERSON ST

.1M W DESPLAINES RIV, Will, IL

Built 1991 Load: 32.4 t ADT: 2,300

INFANTRY DR

Fair

Over: ROCK RUN CREEK TRIB

0.35M N OF JEFFERSON, Will, IL

Built 1996 Load: 32.4 t ADT: 8,100

DRAUDEN ROAD

Fair

Over: UNNAMED STREAM

0.25M N. CATON FARM, Will, IL

Built 1996 Load: 32.4 t ADT: 6,800

N. CEDAR ROAD

Fair

Over: HICKORY CREEK

0.05 M N. OF US 30, Will, IL

Built 2006 Load: 32.4 t ADT: 7,800

135TH EB

Fair

Over: W BR DESPLAINES RV

0.4 MI E IL 53, Will, IL

Built 1997 Load: 32.4 t ADT: 7,100

135TH EB ROMEOVILL

Fair

Over: W BR DESPLAINES RV

0.46 MI E IL 53, Will, IL

Built 1997 Load: 32.4 t ADT: 7,100
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.