County profile · official public datasets

Vermilion County, IL

494 public highway bridges tracked in the FHWA National Bridge Inventory: 27.7% rated Good, 65% Fair, 7.3% Poor.

494
Public bridges
27.7%
Good condition
7.3%
Poor condition

The verdict

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

Vermilion County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 46%
lowest Poor share in state
7.3%
Poor-condition share
494
public highway bridges
1979
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.

Vermilion County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Vermilion County ranks #47 of 102 Illinois counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 7.3%). Vermilion County, Illinois contains 494 public highway bridges. Roughly 27.7% are rated “Good,” 65% “Fair,” and 7.3% “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

494

Public highway bridges in Vermilion County

Good condition

27.7%

137 of 494 rated 7-9

Fair condition

65%

321 of 494 rated 5-6

Poor condition

7.3%

36 of 494 rated 4 or below

In-state Poor-share rank

#47 of 102

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

Condition distribution

Share of 494 NBI-tracked bridges by lowest applicable component rating.

Good
27.7% (137)
Fair
65% (321)
Poor
7.3% (36)

Vermilion County's Poor-condition bridges carry 70,240 vehicle crossings a day

That is 8.8% of the county's reported daily bridge traffic on 7.3% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,951 crossings a day against 1,689 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 493 of 494 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

33.2% of Vermilion County's bridges have passed the 50-year mark

164 of the 494 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 27.7% 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 27.8% of the county's Poor-condition bridge traffic

IL.1/US 150(FAP 33 over I-74 & CD16.23/16.33, built 1965, carries 19,500 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 36-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 70,240 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Vermilion County's bridges were built

494 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1980s, when 108 of the county's bridges still in the inventory were built, which is 21.9% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1979) matches the Illinois average (1979).

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

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

The 5 Illinois counties nearest Vermilion County in number of bridges, with their condition splits. Its 7.3% Poor share is the 3rd-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1979 is in line with the group.

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

Bridge inventory size and condition shares for Vermilion County and the 5 Illinois counties closest to it in inventory size
County Bridges Poor
LaSalle County 528 12.3%
Madison County 523 8.4%
Vermilion County (this page) 494 7.3%
St. Clair County 486 9.1%
Winnebago County 467 7.1%
Sangamon County 466 6.2%

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

Similar inventory size

Nearest county inventories outside IL (494 bridges here).

Similar average build year

Nearest mean year-built outside IL (1979 here).

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

All 494 Good 137 Fair 321 Poor 36

Good-condition bridges (137)

FAP 697(IL 9)

Good

Over: DRAINAGE DITCH

JUST W OF IL 1, Vermilion, IL

Built 1992 Load: 39.5 t ADT: 2,550

TR 90 A

Good

Over: BAUM BRANCH

2.5 MI SW JAMAICA, Vermilion, IL

Built 2021 Load: 39.9 t ADT: 50

TR 140

Good

Over: BEAN CREEK

1 MI E OF POTOMAC, Vermilion, IL

Built 1987 Load: 40.5 t ADT: 50

TR 261

Good

Over: Feather Creek

1 mile N Muncie, Vermilion, IL

Built 2018 Load: 41.1 t ADT: 125

TR 54

Good

Over: BAUM BRANCH

3 M SW JAMAICA, Vermilion, IL

Built 2019 Load: 41.1 t ADT: 50

TR 251 B

Good

Over: I-74

1 MI W OF US 150, Vermilion, IL

Built 1960 Load: 41.5 t ADT: 75

SBI 10 (US 150)

Good

Over: STONY CREEK

0.7 MI E OF MUNCIE, Vermilion, IL

Built 1988 Load: 41.5 t ADT: 2,150

FAP 332(IL 1)

Good

Over: CREEK

S EDGE HOOPESTON, Vermilion, IL

Built 1992 Load: 41.5 t ADT: 4,950

TR 325

Good

Over: Stony Creek

3 MI SW DANVILLE, Vermilion, IL

Built 2021 Load: 41.8 t ADT: 250

TR 206

Good

Over: I-74

1.5 MI NE OF OAKWOOD, Vermilion, IL

Built 1960 Load: 42.1 t ADT: 250

TR 186

Good

Over: WINDFALL CREEK

3 MI SE JAMESBURG, Vermilion, IL

Built 2020 Load: 42.4 t ADT: 75

IL 1 US 150 (FAP 3

Good

Over: 14TH ST(FAU 7010)

AT S EDGE DANVILLE, Vermilion, IL

Built 1966 Load: 42.8 t ADT: 24,700

FAS 331(CH 10)

Good

Over: STREAM

N CITY LIMITS E LYNN, Vermilion, IL

Built 2010 Load: 42.8 t ADT: 300

TR 42A

Good

Over: STREAM

0.5 MI S ARMSTRONG, Vermilion, IL

Built 2021 Load: 42.8 t ADT: 35

CH 3

Good

Over: MIDDLE BRANCH

1.5 MI S CHENEYVILLE, Vermilion, IL

Built 1941 Load: 43.1 t ADT: 250

TR 183

Good

Over: STREAM

5.65 MI N OF US 150, Vermilion, IL

Built 1995 Load: 43.4 t ADT: 75

IL 1 US 150 (FAP 3

Good

Over: LITTLE VERMILION RIV

.3 MI S GEORGETOWN, Vermilion, IL

Built 2006 Load: 44.7 t ADT: 4,000

FAS 496(CH 14)

Good

Over: N FORK VERMILION RIV

.2 MI W OF ROSSVILLE, Vermilion, IL

Built 1996 Load: 44.7 t ADT: 750

FAS 500

Good

Over: PAINTER CREEK

JUST S OF BISMARCK, Vermilion, IL

Built 1993 Load: 45.0 t ADT: 2,300

FAS 331(CH 10)

Good

Over: FOUNTAIN CREEK

.3 MI NE LYNN, Vermilion, IL

Built 2012 Load: 45.7 t ADT: 250

TR 498

Good

Over: WIHPPOORWILL BRANCH

5 MI. E. OF GTOWN, Vermilion, IL

Built 2018 Load: 46.0 t ADT: 125

US 136(FAP 711)

Good

Over: BLUE GRASS CREEK

EAST EDGE OF PATOMAC, Vermilion, IL

Built 2005 Load: 46.7 t ADT: 2,000

VOORHEES(FAU 6999)

Good

Over: STONY CREEK

N SIDE OF DANVILLE, Vermilion, IL

Built 2018 Load: 47.3 t ADT: 5,750

I-74

Good

Over: LICK CREEK

E OF DANVILLE, Vermilion, IL

Built 1964 Load: 48.3 t ADT: 18,300

FAP 332(IL 1 US 15

Good

Over: STREAM

1 MI S WESTVILLE, Vermilion, IL

Built 1991 Load: 48.6 t ADT: 7,550

I-74 (WB)

Good

Over: SALT FORK VERM RIVER

W OF DANVILLE, Vermilion, IL

Built 1962 Load: 49.6 t ADT: 10,600

US 136(FAP 711)

Good

Over: BEAN CREEK

1 MILE E OF POTOMAC, Vermilion, IL

Built 2005 Load: 50.2 t ADT: 1,450

CH 32(FAS 1507)

Good

Over: HUNGRY HOLLOW CREEK

3 MI NW DANVILLE, Vermilion, IL

Built 1968 Load: 51.8 t ADT: 675

IL 49 (FAP 840)

Good

Over: I-74

NW OF FITHIAN, Vermilion, IL

Built 2008 Load: 54.4 t ADT: 1,350

FAS 331(CH 10)

Good

Over: FOUNTAIN CREEK

8.4 MI N POTOMAC, Vermilion, IL

Built 1983 Load: 54.4 t ADT: 475

FAP 840(IL 49)

Good

Over: FAST CREEK

S EDGE OF RANKIN, Vermilion, IL

Built 1978 Load: 54.8 t ADT: 1,100

IL 1 US 150 (FAP 3

Good

Over: Norfolk Southern Railway

JUST S OF DANVILLE, Vermilion, IL

Built 2003 Load: 56.4 t ADT: 19,500

FAP 840 (IL 49)

Good

Over: Drainage Ditch

0.5 Mi. N. of US 136 (E), Vermilion, IL

Built 2022 Load: 57.0 t ADT: 1,700

TR 482

Good

Over: Stream

5.5 MI E Rossville, Vermilion, IL

Built 2012 Load: 72.9 t ADT: 75

FAS 512(CH 8)

Good

Over: OLIVE BRANCH

3.4 MI W FAIRMOUNT, Vermilion, IL

Built 1962 Load: 88.8 t ADT: 1,750

FAS 331

Good

Over: GLENBURN CREEK

1.75 MI N OF OAKWOOD, Vermilion, IL

Built 1967 Load: 89.1 t ADT: 1,200

FAP 709(US 136)

Good

Over: STREAM

2 MI NW ARMSTRONG, Vermilion, IL

Built 1997 Load: 89.1 t ADT: 1,550

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.