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)

BALLOU RD

Good

Over: FORKED CREEK

0.4 MI E IL-102, Will, IL

Built 1943 Load: 14.9 t ADT: 350

HERITAGE MEADOW DR

Good

Over: WOLF CREEK

0.3 MI W IL59, Will, IL

Built 2004 Load: 19.8 t ADT: 1,350

ALLOTT DR

Good

Over: JORDAN CR

1.5 MI E IL 53, Will, IL

Built 1981 Load: 24.3 t ADT: 250

JACKSON BRANCH DRI

Good

Over: JACKSON CR

0.2M S OF LARAWAY RD, Will, IL

Built 1977 Load: 24.3 t ADT: 1,350

WILMINGTONPEOTONE

Good

Over: FORKED CREEK W BR

1.2 MI W CEDAR RD, Will, IL

Built 1985 Load: 24.6 t ADT: 6,050

VETERANS PARKWAY

Good

Over: LILY CACHE CREEK

1.2M NW OF 55, Will, IL

Built 2004 Load: 24.6 t ADT: 17,400

I- 55 NB

Good

Over: MINK CREEK

0.8 M N OF US 30, Will, IL

Built 1995 Load: 27.9 t ADT: 40,900

I- 55 SB

Good

Over: MINK CREEK

0.8 M N OF US 30, Will, IL

Built 1995 Load: 27.9 t ADT: 40,900

I-355NB

Good

Over: SPRING CREEK

1M N OF US6, Will, IL

Built 2007 Load: 31.1 t ADT: 24,250

I355SB

Good

Over: SPRING CREEK

1M N OF US6, Will, IL

Built 2007 Load: 31.1 t ADT: 24,250

ILL 7 FRNT. RD

Good

Over: DESPLAINES RIV

.36M E OF ILL 53, Will, IL

Built 1957 Load: 31.4 t ADT: 475

WOLF RD

Good

Over: I- 80

2.0 M W OF US-45, Will, IL

Built 1965 Load: 31.8 t ADT: 8,000

RENWICK RD

Good

Over: MINK CREEK

1.5 MI W OF WEBER RD, Will, IL

Built 1972 Load: 32.1 t ADT: 14,900

RENWICK RD

Good

Over: MINK CREEK

JUST E OF I-55, Will, IL

Built 1958 Load: 32.4 t ADT: 14,900

WEST RIVER RD

Good

Over: CREEK

2.6M S OF IL53, Will, IL

Built 2010 Load: 32.4 t ADT: 3,450

IL 171

Good

Over: MILNE CREEK

0.1 M N OF IL 7, Will, IL

Built 2012 Load: 32.4 t ADT: 14,600

I- 80

Good

Over: MARLEY CREEK

3.5 M E OF US-30, Will, IL

Built 1966 Load: 32.4 t ADT: 68,800

Renwick Rd

Good

Over: LILY CACHE CREEK

2.8 MI W WEBER ROAD, Will, IL

Built 1968 Load: 32.4 t ADT: 14,900

ROWELL ROAD

Good

Over: MANHATTAN CREEK

0.75 M SO MAN, Will, IL

Built 2007 Load: 32.4 t ADT: 50

88TH AVE (PEOTONE)

Good

Over: FORKED CREEK

0.5M S MANH-MONEE RD, Will, IL

Built 2011 Load: 32.4 t ADT: 425

TR-241 (Bruns Road

Good

Over: S Br Forked Creek

.50 M W CHW 19, Will, IL

Built 2006 Load: 32.4 t ADT: 375

CH 17 E Frontage R

Good

Over: N Branch Grant Creek

0.7 Mi N Blodgett Rd, Will, IL

Built 2016 Load: 32.4 t ADT: 12,300

135TH STREET

Good

Over: LONG RUN CREEK

NW of Ill. Rte. 171, Will, IL

Built 2014 Load: 32.4 t ADT: 5,500

OLD CHICAGO RD (CH

Good

Over: JORDAN CREEK

0.05M N.WILM-PEOTONE, Will, IL

Built 2014 Load: 32.4 t ADT: 750

CH 25

Good

Over: JORDAN CREEK

2.95M E IL ROUTE 53, Will, IL

Built 2012 Load: 32.4 t ADT: 6,250

Manhattan-Arsenal

Good

Over: Jackson Creek

Just E. of Il Rt. 53, Will, IL

Built 2013 Load: 32.4 t ADT: 3,750

EXCHANGE ST. (CH 4

Good

Over: DEER CREEK TRIBUTARY

BWTN IL 1 & IL 394, Will, IL

Built 2014 Load: 32.4 t ADT: 8,200

GOUGAR ROAD

Good

Over: FRACTION RUN CREEK

2 MI NORTH US 6, Will, IL

Built 1975 Load: 32.4 t ADT: 6,750

CH 17 W Frontage

Good

Over: North Br Grant Cr

0.7 M N of Blodgett, Will, IL

Built 2014 Load: 32.4 t ADT: 2,900

Ch 25 Wilm.-Peo.

Good

Over: S Br Frorked Creek

0.5 Mi West of US 45, Will, IL

Built 2014 Load: 32.4 t ADT: 6,000

Peotone-Beecher Rd

Good

Over: Exline Slough

3 Mi West of IL 1, Will, IL

Built 2014 Load: 32.4 t ADT: 3,650

RIDGE ROAD

Good

Over: MANHATTAN CREEK

0.15 MI N BROWN RD, Will, IL

Built 2012 Load: 32.4 t ADT: 600

OFFNER RD

Good

Over: S BR FORKED CRK

0.04 MI W 80TH AVE, Will, IL

Built 2016 Load: 32.4 t ADT: 250

W. OFFNER ROAD

Good

Over: BLACK WALNUT CREEK

.5 M E Crawford Ave, Will, IL

Built 2012 Load: 32.4 t ADT: 175

RICHTON RD (TR 219

Good

Over: PLUM CREEK

1.4 M E ILL RTE 394, Will, IL

Built 2014 Load: 32.4 t

NEW RIVER ROAD

Good

Over: PRAIRIE CREEK

1 M E. I55(NW WILMGT, Will, IL

Built 1969 Load: 32.4 t ADT: 7,500

GOLFVIEW DRIVE

Good

Over: BR. OF FORKED CREEK

2 MI E. OF US RTE 45, Will, IL

Built 1990 Load: 32.4 t ADT: 125

PRAIRIE GRASS DRIV

Good

Over: DRAINAGE DITCH

1.5 MI E. OF US 45, Will, IL

Built 2005 Load: 32.4 t ADT: 150

PAULING ROAD

Good

Over: BLACK WALNUT CREEK

4.2 MI E OF IL50, Will, IL

Built 1977 Load: 32.4 t ADT: 4,600

CH 62 (BRIGGS ST)

Good

Over: SPRING CREEK

0.5 M N OF US RTE 6, Will, IL

Built 2011 Load: 32.4 t ADT: 7,100

CH 88(WEBER ROAD)

Good

Over: CN RAILROAD

0.2MI S.CATON FARM R, Will, IL

Built 1980 Load: 32.4 t ADT: 21,000

CATON FARM ROAD

Good

Over: DUPAGE RIVER

0.6 MI E.ILL.RT.59, Will, IL

Built 1982 Load: 32.4 t ADT: 22,800

PEOTONE-BEECHER RD

Good

Over: BR OF EXLINE SLOUGH

0.45 MI E OF WESTERN, Will, IL

Built 1989 Load: 32.4 t ADT: 3,650

NAP-PLFD RD

Good

Over: SPRING BROOK

0.2 MI N 95TH ST, Will, IL

Built 1993 Load: 32.4 t ADT: 9,900

SAUK TRAIL

Good

Over: TRIB HICKORY CREEK

APPROX0.5M WOF80THAV, Will, IL

Built 1992 Load: 32.4 t ADT: 2,800

SAUK TRAIL

Good

Over: HICKORY CREEK TRIB A

APPROX0.3MWOFHARLEMA, Will, IL

Built 1992 Load: 32.4 t ADT: 1,700

CENTER ROAD

Good

Over: BR. FORKED CREEK

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

Built 1993 Load: 32.4 t ADT: 3,400

WILMINGTON-PEOTONE

Good

Over: FORKED CREEK

JUST W.COUGAR RD, Will, IL

Built 1993 Load: 32.4 t ADT: 6,050

WILM-PEOTONE RD

Good

Over: BR OF FORKED CREEK

1.6 M E.CEDAR ROAD, Will, IL

Built 1994 Load: 32.4 t ADT: 5,250

WILTON-CENTER RD

Good

Over: FORKED CREEK

1.5 MI. S OF US-52, Will, IL

Built 1994 Load: 32.4 t ADT: 2,400

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.