Total bridges
330
Public highway bridges in Pike County
County profile · official public datasets
Pike County, IL
330 public highway bridges tracked in the FHWA National Bridge Inventory: 23.9% rated Good, 66.1% Fair, 10% Poor.
- 330
- Public bridges
- 23.9%
- Good condition
- 10%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Pike County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 72nd
- of 102 on Poor share
- 10%
- Poor-condition share
- 330
- 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.
Pike County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Pike County ranks #72 of 102 Illinois counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10%). Pike County, Illinois contains 330 public highway bridges. Roughly 23.9% are rated “Good,” 66.1% “Fair,” and 10% “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
23.9%
79 of 330 rated 7-9
Fair condition
66.1%
218 of 330 rated 5-6
Poor condition
10%
33 of 330 rated 4 or below
In-state Poor-share rank
#72 of 102
Among Illinois counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 330 NBI-tracked bridges by lowest applicable component rating.
Good 23.9% (79)
Fair 66.1% (218)
Poor 10% (33)
Pike County's Poor-condition bridges carry 21,395 vehicle crossings a day
That is 5.3% of the county's reported daily bridge traffic on 10% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 648 crossings a day against 1,283 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 330 of 330 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
25.8% of Pike County's bridges have passed the 50-year mark
85 of the 330 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 23.9% 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 77.1% of the county's Poor-condition bridge traffic
I-72 / US 36 over MISS R/BNRR/NSRR/ST, built 1999, carries 16,500 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 33-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 21,395 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Pike County's bridges were built
330 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 8
1900–1909
8 bridges
- 1910s 4
1910–1919
4 bridges
- 1920s 12
1920–1929
12 bridges
- 1930s 16
1930–1939
16 bridges
- 1940s 8
1940–1949
8 bridges
- 1950s 14
1950–1959
14 bridges
- 1960s 18
1960–1969
18 bridges
- 1970s 18
1970–1979
18 bridges
- 1980s
1980–1989
118 bridges
- 1990s
1990–1999
55 bridges
- 2000s 32
2000–2009
32 bridges
- 2010s 23
2010–2019
23 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1980s, when 118 of the county's bridges still in the inventory were built, which is 35.8% 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).
How Pike County compares with Illinois's closest counties by inventory size
The 5 Illinois counties nearest Pike County in number of bridges, with their condition splits. Its 10% Poor share is the 4th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1977 is in line with the group.
Showing the 5 closest of 101 Illinois counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Kane County | 336 | 48.2% | 45.5% | 6.3% | 1986 |
| Shelby County | 335 | 56.4% | 36.4% | 7.2% | 1978 |
| Pike County (this page) | 330 | 23.9% | 66.1% | 10% | 1979 |
| Henry County | 328 | 49.4% | 39.6% | 11% | 1978 |
| Christian County | 321 | 16.2% | 67% | 16.8% | 1969 |
| Adams County | 319 | 40.4% | 53.6% | 6% | 1976 |
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 Pike 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 Pike County, both outside Illinois so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IL (330 bridges here).
- Tippecanoe County, IN · 330 bridges
- Garvin County, OK · 330 bridges
- Sebastian County, AR · 331 bridges
- Pike County, KY · 331 bridges
Similar average build year
Nearest mean year-built outside IL (1979 here).
- Pima County, AZ · avg 1979 · 1,150 bridges
- Jefferson County, KY · avg 1979 · 662 bridges
- Spartanburg County, SC · avg 1979 · 638 bridges
- McPherson County, KS · avg 1979 · 586 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (218)
IL 96
FairOver: AMBROSIA CREEK
1M NW US 54-ATLAS, Pike, IL
Built 1938 Load: 46.0 t ADT: 1,100
I-72 EB
FairOver: TRIB MCCRANEY CREEK
2M E HULL INTCHG, Pike, IL
Built 1988 Load: 46.3 t ADT: 4,700
I-72 WB
FairOver: TRIB MCCRANEY CREEK
2M E HULL INTCHG, Pike, IL
Built 1988 Load: 46.3 t ADT: 4,700
I-72 EB
FairOver: TR 490
6M E IL 107 INTCHG, Pike, IL
Built 1989 Load: 48.0 t ADT: 4,950
IL 106
FairOver: PIGEON CREEK
3.6M W IL96/HULL, Pike, IL
Built 1965 Load: 48.9 t ADT: 1,350
ILL 106
FairOver: BAY CREEK
1.4 MI E PITTSFIELD, Pike, IL
Built 1948 Load: 50.2 t ADT: 1,950
IL 96 / 106
FairOver: MCCRANEY CREEK
1M E IL96/106 SPLIT, Pike, IL
Built 1975 Load: 50.2 t ADT: 2,100
US 54
FairOver: THE SNY
1M SW IL 96, Pike, IL
Built 1975 Load: 50.2 t ADT: 2,500
ILL 96
FairOver: KCS RR
1MI SE PLEASANT HILL, Pike, IL
Built 1940 Load: 50.5 t ADT: 725
FAS 600
FairOver: BAY CREEK
1.0 MI E TIME, Pike, IL
Built 1885 Load: 53.8 t ADT: 225
FAS 1591(CH 11)
FairOver: BRANCH HONEY CREEK
S.W. EDGE PITTSFIELD, Pike, IL
Built 1980 Load: 82.6 t ADT: 1,000
ILL 100
FairOver: BETTELL CREEK
2MI N PEARL, Pike, IL
Built 1935 Load: 89.1 t ADT: 500
IL 104
FairOver: N FK BROWER CREEK
4.6M W IL 107, Pike, IL
Built 1934 Load: 89.1 t ADT: 775
ILL 100
FairOver: BUCKHORN CREEK
3.2MI S MILTON, Pike, IL
Built 1935 Load: 89.1 t ADT: 500
I-72
FairOver: BRANCH KISER CREEK
4.5M E BARRY INTCHG, Pike, IL
Built 1989 Load: 89.1 t ADT: 8,850
IL 104
FairOver: DITCH
2.85 MI E ADAMS CO, Pike, IL
Built 1934 Load: 89.1 t ADT: 775
I-72 / US 36
FairOver: DRAINAGE DITCH
2.68M W IL96/HULL, Pike, IL
Built 1986 Load: 97.2 t ADT: 9,400
I-72
FairOver: BRANCH KISER CREEK
5.2M E BARRY INTCHG, Pike, IL
Built 1989 Load: 99.9 t ADT: 8,850
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.