Total bridges
344
Public highway bridges in Kankakee County
County profile · official public datasets
Kankakee County, IL
344 public highway bridges tracked in the FHWA National Bridge Inventory: 40.1% rated Good, 53.5% Fair, 6.4% Poor.
- 344
- Public bridges
- 40.1%
- Good condition
- 6.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Kankakee County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 31%
- lowest Poor share in state
- 6.4%
- Poor-condition share
- 344
- public highway bridges
- 1982
- 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.
Kankakee County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Kankakee County ranks #32 of 102 Illinois counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.4%). Kankakee County, Illinois contains 344 public highway bridges. Roughly 40.1% are rated “Good,” 53.5% “Fair,” and 6.4% “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.
Good condition
40.1%
138 of 344 rated 7-9
Fair condition
53.5%
184 of 344 rated 5-6
Poor condition
6.4%
22 of 344 rated 4 or below
In-state Poor-share rank
#32 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 40.1% (138)
Fair 53.5% (184)
Poor 6.4% (22)
Kankakee County's Poor-condition bridges carry 79,175 vehicle crossings a day
That is 10.2% of the county's reported daily bridge traffic on 6.4% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 3,599 crossings a day against 1,505 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 344 of 344 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
33.4% of Kankakee County's bridges have passed the 50-year mark
115 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 40.1% 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 18.3% of the county's Poor-condition bridge traffic
FAI-57 SB over ILL 17, built 1955, carries 14,450 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 22-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 79,175 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Kankakee County's bridges were built
344 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 1
1900–1909
1 bridges
- 1910s 3
1910–1919
3 bridges
- 1920s 2
1920–1929
2 bridges
- 1930s 7
1930–1939
7 bridges
- 1940s 1
1940–1949
1 bridges
- 1950s 22
1950–1959
22 bridges
- 1960s
1960–1969
48 bridges
- 1970s
1970–1979
64 bridges
- 1980s
1980–1989
82 bridges
- 1990s
1990–1999
42 bridges
- 2000s
2000–2009
40 bridges
- 2010s 21
2010–2019
21 bridges
- 2020s 10
2020–2029
10 bridges
What this shows Construction peaked in the 1980s, when 82 of the county's bridges still in the inventory were built, which is 23.8% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1982) matches the Illinois average (1979).
How Kankakee County compares with Illinois's closest counties by inventory size
The 5 Illinois counties nearest Kankakee County in number of bridges, with their condition splits. Its 6.4% Poor share is the 3rd-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1983 is in line with the group.
Showing the 5 closest of 101 Illinois counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Peoria County | 352 | 24.1% | 57.7% | 18.2% | 1983 |
| Macon County | 346 | 25.7% | 58.7% | 15.6% | 1984 |
| DuPage County | 344 | 37.5% | 54.4% | 8.1% | 1985 |
| Kankakee County (this page) | 344 | 40.1% | 53.5% | 6.4% | 1982 |
| Stephenson County | 342 | 61.1% | 36.3% | 2.6% | 1977 |
| Kane County | 336 | 48.2% | 45.5% | 6.3% | 1986 |
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 Kankakee 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 Kankakee 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).
- Shelby County, AL · 344 bridges
- Cumberland County, ME · 344 bridges
- Greene County, OH · 344 bridges
- Galveston County, TX · 344 bridges
Similar average build year
Nearest mean year-built outside IL (1982 here).
- Oklahoma County, OK · avg 1982 · 1,216 bridges
- Jackson County, MO · avg 1982 · 930 bridges
- Milwaukee County, WI · avg 1982 · 893 bridges
- Broward County, FL · avg 1982 · 686 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (184)
CH 7
FairOver: ROCK CREEK
1.7 MI S DESELM, Kankakee, IL
Built 1964 Load: 32.4 t ADT: 800
CH 7
FairOver: FORKED CR
6.9 MI NW MANTENO, Kankakee, IL
Built 1967 Load: 32.4 t ADT: 1,200
TR 10 B
FairOver: CRANE CREEK
3.5 MI NE OF REDDICK, Kankakee, IL
Built 1968 Load: 32.4 t ADT: 50
TR 2
FairOver: REDDICK RUN
1.06 MI S.of CH 25, Kankakee, IL
Built 1983 Load: 32.4 t ADT: 75
TR 29
FairOver: EXLINE SLOUGH
5.5 MI SE MANTENO, Kankakee, IL
Built 1976 Load: 32.4 t ADT: 375
TR 165
FairOver: W BRANCH HORSE CREEK
0.6 MI W HERSCHER, Kankakee, IL
Built 1976 Load: 32.4 t ADT: 175
TR 49A
FairOver: DITCH
6 MI NE MOMENCE, Kankakee, IL
Built 1976 Load: 32.4 t ADT: 100
TR 31
FairOver: BULL CREEK
SHERBURNVILLE, Kankakee, IL
Built 1977 Load: 32.4 t ADT: 100
TR 0041
FairOver: TRIM CREEK
4MI NE MOMENCE, Kankakee, IL
Built 1977 Load: 32.4 t ADT: 525
TR 39
FairOver: EXLINE SLOUGH
1 MI N OF ST GEORGE, Kankakee, IL
Built 1979 Load: 32.4 t ADT: 75
TR 165
FairOver: REDDICK RUN
5.75 MI W HERSCHER, Kankakee, IL
Built 1979 Load: 32.4 t ADT: 50
TR 11
FairOver: ROCK CREEK
3.5 NW MANTENO, Kankakee, IL
Built 1980 Load: 32.4 t ADT: 125
TR 6
FairOver: MACON CR
1.1 MI NE REDDICK, Kankakee, IL
Built 1979 Load: 32.4 t ADT: 25
TR 119
FairOver: HORSE CR
3 MI N HERSCHER, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 75
TR 158
FairOver: SO BR ROCK CREEK
1 MI E MANTENO, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 2,750
TR 7A
FairOver: BLACK WALNUT CR
3 MI NE MANTENO, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 100
TR 226C BRICKYARD
FairOver: INTERMIT STREAM
1 MI EAST MOMENCE, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 150
TR 19A
FairOver: ROCK CREEK
2.5 MI SE DESELM, Kankakee, IL
Built 1983 Load: 32.4 t ADT: 75
TR 147
FairOver: CRANE CR
4.5 MI NW HERSCHER, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 75
TR 147
FairOver: REDDICK RUN
2 MI S REDDICK, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 50
TR 147
FairOver: HORSE CREEK W BR
1.5 MI NW HERSCHER, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 50
TR 78
FairOver: FORKED CR SO BR
9.25 MI NW MANTENO, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 75
TR 101A
FairOver: W BR HORSE CREEK
5 MI SW BONFIELD, Kankakee, IL
Built 1987 Load: 32.4 t ADT: 50
TR 21
FairOver: EXLINE SLOUGH
3 MI N ST. GEORGE, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 25
TR-7B
FairOver: TRIM CREEK
3 MI N GRANT PARK, Kankakee, IL
Built 1981 Load: 32.4 t ADT: 75
TR 49A
FairOver: BULL CREEK
2 MI SO SHERBURNVILL, Kankakee, IL
Built 1984 Load: 32.4 t ADT: 100
TR 13
FairOver: PIKE CREEK
2.5 MI NE GRANT PARK, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 250
TR 103
FairOver: BAKER CREEK
.75 MI SW EXLINE, Kankakee, IL
Built 1986 Load: 32.4 t ADT: 225
TR 101A
FairOver: HORSE CR EBR
3.5 MI SW BONFIELD, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 50
TR 119
FairOver: HORSE CR WBR
3.3 MI NW HERSCHER, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 100
TR 166
FairOver: BLACKWALNUT CREEK
4.35 MI NE MANTENO, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 75
TR 31
FairOver: PIKE CREEK
3.5 MI SE GRANT PARK, Kankakee, IL
Built 1983 Load: 32.4 t ADT: 300
TR 75
FairOver: SO BR HORSE CREEK
4 MI NW OF BONFIELD, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 25
TR 125
FairOver: REDDICK RUN
1 MI SE OFREDDICK, Kankakee, IL
Built 1983 Load: 32.4 t ADT: 50
TR 125
FairOver: CRANE CREEK
3.75 MI SE REDDICK, Kankakee, IL
Built 1986 Load: 32.4 t ADT: 50
TR 177
FairOver: HORSE CR WBR
4 MI SW HERSCHER, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 75
TR 142A
FairOver: S BR ROCK CREEK
1.90 S OF CH 9/W.DIV, Kankakee, IL
Built 1987 Load: 32.4 t ADT: 1,600
CH 28
FairOver: GARR CREEK
5 MI NW OF CHEBANSE, Kankakee, IL
Built 1987 Load: 32.4 t ADT: 475
TR 264
FairOver: BULL CREEK
5 M1 E OF GRANT PARK, Kankakee, IL
Built 1986 Load: 32.4 t ADT: 25
TR 7
FairOver: NO. BR. ROCK CREEK
3 MI NW MANTENO, Kankakee, IL
Built 1984 Load: 32.4 t ADT: 25
TR 101A
FairOver: LEHIGH RAYMOND RUN
2.5 MI SW BONFIELD, Kankakee, IL
Built 1984 Load: 32.4 t ADT: 50
TR 173
FairOver: HORSE CREEK
2.5 MI SW HERSCHER, Kankakee, IL
Built 1986 Load: 32.4 t ADT: 50
TR 171
FairOver: CREEK
4.5 MI SO REDDICK, Kankakee, IL
Built 1985 Load: 32.4 t ADT: 25
TR 21
FairOver: CANAVAN SLOUGH
2 MI SW WHITAKER, Kankakee, IL
Built 1982 Load: 32.4 t ADT: 25
TR 124
FairOver: S BR ROCK CREEK
3.5 MI SW MANTENO, Kankakee, IL
Built 1987 Load: 32.4 t ADT: 1,050
TR 11
FairOver: CREEK
5 MI NW OF MANTENO, Kankakee, IL
Built 1985 Load: 32.4 t ADT: 125
CH 18
FairOver: MACON CREEK
2.25 MI SE REDDICK, Kankakee, IL
Built 1931 Load: 32.4 t ADT: 650
TR 204
FairOver: TOWER CREEK
4 MI NE ST GEORGE, Kankakee, IL
Built 1984 Load: 32.4 t ADT: 75
TR 125
FairOver: GRANARY CREEK
2 MI S OF UNION HILL, Kankakee, IL
Built 1988 Load: 32.4 t ADT: 50
TR 125
FairOver: REDDICK RUN
1 MI. S OF REDDICK, Kankakee, IL
Built 1987 Load: 32.4 t ADT: 50
Read our methodology - how this data is sourced, computed, and verified.
Related
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.