Total bridges
228
Public highway bridges in Jackson County
County profile · official public datasets
Jackson County, IL
228 public highway bridges tracked in the FHWA National Bridge Inventory: 66.2% rated Good, 27.2% Fair, 6.6% Poor.
- 228
- Public bridges
- 66.2%
- Good condition
- 6.6%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Jackson County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 37%
- lowest Poor share in state
- 6.6%
- Poor-condition share
- 228
- public highway bridges
- 1987
- 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.
Jackson County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Jackson County ranks #38 of 102 Illinois counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.6%). Jackson County, Illinois contains 228 public highway bridges. Roughly 66.2% are rated “Good,” 27.2% “Fair,” and 6.6% “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
66.2%
151 of 228 rated 7-9
Fair condition
27.2%
62 of 228 rated 5-6
Poor condition
6.6%
15 of 228 rated 4 or below
In-state Poor-share rank
#38 of 102
Among Illinois counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 228 NBI-tracked bridges by lowest applicable component rating.
Good 66.2% (151)
Fair 27.2% (62)
Poor 6.6% (15)
Jackson County's Poor-condition bridges carry 33,185 vehicle crossings a day
That is 6.4% of the county's reported daily bridge traffic on 6.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 2,212 crossings a day against 1,861 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 228 of 228 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
17.5% of Jackson County's bridges have passed the 50-year mark
40 of the 228 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 66.2% 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 50% of the county's Poor-condition bridge traffic
IL-13 EB over Big Muddy River, built 2014, carries 16,600 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 15-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 33,185 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Jackson County's bridges were built
228 bridges with a recorded construction year, grouped by decade
- 1900s 3
1900–1909
3 bridges
- 1920s 2
1920–1929
2 bridges
- 1930s 12
1930–1939
12 bridges
- 1940s 1
1940–1949
1 bridges
- 1950s 12
1950–1959
12 bridges
- 1960s 6
1960–1969
6 bridges
- 1970s
1970–1979
21 bridges
- 1980s
1980–1989
52 bridges
- 1990s
1990–1999
38 bridges
- 2000s
2000–2009
50 bridges
- 2010s
2010–2019
25 bridges
- 2020s 6
2020–2029
6 bridges
What this shows Construction peaked in the 1980s, when 52 of the county's bridges still in the inventory were built, which is 22.8% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1987, 8 years newer than the Illinois average of 1979.
How Jackson County compares with Illinois's closest counties by inventory size
The 5 Illinois counties nearest Jackson County in number of bridges, with their condition splits. Its 6.6% Poor share is the 4th-lowest of these 6. Its average build year of 1987 against a peer-group mean of 1980 is 7 years newer.
Showing the 5 closest of 101 Illinois counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Washington County | 233 | 50.6% | 43.3% | 6% | 1973 |
| Douglas County | 232 | 76.3% | 22.4% | 1.3% | 1982 |
| Clark County | 230 | 62.6% | 32.6% | 4.8% | 1978 |
| Jackson County (this page) | 228 | 66.2% | 27.2% | 6.6% | 1987 |
| McHenry County | 227 | 41.4% | 38.3% | 20.3% | 1983 |
| Woodford County | 223 | 26.9% | 62.8% | 10.3% | 1985 |
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 Jackson 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 Jackson County, both outside Illinois so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IL (228 bridges here).
- Franklin County, IA · 228 bridges
- Attala County, MS · 228 bridges
- Saratoga County, NY · 228 bridges
- Pitt County, NC · 228 bridges
Similar average build year
Nearest mean year-built outside IL (1987 here).
- St. Louis County, MO · avg 1987 · 912 bridges
- Ellis County, TX · avg 1987 · 691 bridges
- St. Louis County, MN · avg 1987 · 663 bridges
- Palm Beach County, FL · avg 1987 · 610 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (228)
TR 62 - EHLERS RD
FairOver: CREEK
1/4 MI S PERRY CO LI, Jackson, IL
Built 1996 Load: 8.7 t ADT: 25
FAP-312 (IL-3)
FairOver: Stream
1.8M E RANDOLPH CL, Jackson, IL
Built 1933 Load: 17.2 t ADT: 2,150
ILL 3
FairOver: TALBOTT HOLLOW
1.1M NW OF ILL 151, Jackson, IL
Built 1933 Load: 17.8 t ADT: 2,150
ILL RTE 13
FairOver: TRIB-PILES FORK CRK.
0.1M W.UNIV.MALL ENT, Jackson, IL
Built 1948 Load: 20.4 t ADT: 25,500
TR112
FairOver: CREEK
.6M.S.JCT.W/FAS1923, Jackson, IL
Built 1970 Load: 21.7 t ADT: 10
HIGH SCHOOL ROAD
FairOver: STREAM
NW CORNER MBORO, Jackson, IL
Built 1978 Load: 24.3 t ADT: 10
WALL ST
FairOver: PILES FORK
WALL ST CARBONDALE, Jackson, IL
Built 1962 Load: 25.3 t ADT: 7,100
FS RTE. 346
FairOver: CEDAR CREEK
3 MI NW OF POMONA, Jackson, IL
Built 1989 Load: 25.3 t ADT: 100
CH 5 (FAS 917)
FairOver: TOWN CREEK
SW CORN SEC 12-9-3, Jackson, IL
Built 1955 Load: 27.2 t ADT: 1,400
US 51
FairOver: CNIC RR
3 MI N OF DESOTO, Jackson, IL
Built 1983 Load: 29.5 t ADT: 5,150
ILL 151
FairOver: CREEK
1 MI S OF AVA, Jackson, IL
Built 1935 Load: 30.5 t ADT: 850
FAS 919 CH 12
FairOver: INDIAN CRK
NW 1/4 SEC.25-10-1, Jackson, IL
Built 1981 Load: 30.5 t ADT: 600
AIRPORT RD FAU 972
FairOver: LITTLE CRAB ORCHARD
E LINE SEC 4-9-1, Jackson, IL
Built 1983 Load: 32.1 t ADT: 2,100
ILL 149
FairOver: HALLS CREEK
1.3M NE ILL 13-127, Jackson, IL
Built 1939 Load: 32.4 t ADT: 2,800
FAS 921
FairOver: BIG MUDDY RIVER
0.9MI E OF DESOTO CL, Jackson, IL
Built 1980 Load: 32.4 t ADT: 450
TR 225
FairOver: WORTHEN BAYOU
S.LINE SEC.7-9-3, Jackson, IL
Built 1984 Load: 32.4 t ADT: 25
TOWNSHIP ROAD #80
FairOver: ROCKY FORK
EAST LINE SEC.23-7-4, Jackson, IL
Built 1984 Load: 32.4 t ADT: 25
TR 294
FairOver: SIX MILE CREEK
NE 1/4 SEC 6-7-1, Jackson, IL
Built 1987 Load: 32.4 t ADT: 600
TR 170
FairOver: CAMP CR TRIB
1.5 MI N OF AVA BLTP, Jackson, IL
Built 1989 Load: 32.4 t ADT: 75
TR 246-PUMPHOUSE R
FairOver: TRIB TO MUD CREEK
NW 1/4 SEC 23-9-2, Jackson, IL
Built 1995 Load: 32.4 t ADT: 500
TR 80
FairOver: TRIB TO ROCKY FORK
1.5 MI N OF AVA, Jackson, IL
Built 1995 Load: 32.4 t ADT: 25
TR347-SCHOOLHOUSE
FairOver: INDIAN CREEK
0.5 MI W CH 12, Jackson, IL
Built 1996 Load: 32.4 t ADT: 75
MORBER RD
FairOver: JOHNSON CREEK
.1 MILE W OF ILL 151, Jackson, IL
Built 2011 Load: 32.4 t ADT: 25
RENDLEMAN RD.
FairOver: TRIB.PILES FORK CRK.
CARBONDALE, Jackson, IL
Built 1984 Load: 32.4 t ADT: 2,200
DOGWOOD RD
FairOver: DRURY CREEK
0.8MI E OF FAS 1919, Jackson, IL
Built 1980 Load: 32.7 t ADT: 350
ILL 149
FairOver: KINKAID CREEK
0.9 M E OF ILL 3, Jackson, IL
Built 1986 Load: 33.0 t ADT: 2,100
FAS1918 CH7
FairOver: POND CREEK
SW1/4 SEC 20-8-2, Jackson, IL
Built 1968 Load: 33.4 t ADT: 2,750
TR 70
FairOver: TALBOTT HOLLOW
1.0M SE OF JACOB, Jackson, IL
Built 1994 Load: 33.7 t ADT: 50
CH 2
FairOver: MUD CREEK
0.5 MI N OF CH-7, Jackson, IL
Built 1978 Load: 34.7 t ADT: 225
US 51
FairOver: SIX MILE CREEK
0.3 MI S PERRY CO, Jackson, IL
Built 1954 Load: 35.0 t ADT: 6,150
FAS 1916-MUDLINE R
FairOver: RATTLESNAKE CR TRIB
0.78 MI N IL 4, Jackson, IL
Built 1998 Load: 35.0 t ADT: 1,350
IL 149-FAP 873
FairOver: BEAUCOUP CREEK
3.3 MI W DESOTO, Jackson, IL
Built 2001 Load: 35.3 t ADT: 2,800
TR 221
FairOver: DRAINAGE DITCH
E 1/2 SEC 10-9-4, Jackson, IL
Built 1979 Load: 35.3 t ADT: 10
FAS 1916
FairOver: BEAUCOUP CREEK
3 MI N OF FAP686-IL4, Jackson, IL
Built 1987 Load: 35.3 t ADT: 375
IL 149
FairOver: LITTLE MUDDY RIVER
2 MI E OF DESOTO, Jackson, IL
Built 1986 Load: 36.0 t ADT: 3,000
ILL 127
FairOver: DRAINAGE DITCH
ECL OF MURPHYSBORO, Jackson, IL
Built 1958 Load: 36.3 t ADT: 5,450
TR 309
FairOver: LITTLE CRAB ORCHARD
N LNE SEC 31-9-1, Jackson, IL
Built 1980 Load: 36.3 t ADT: 900
ILLINOIS 3
FairOver: UP RR
NORTH OF GORHAM RD., Jackson, IL
Built 1976 Load: 36.6 t ADT: 1,400
CH-10
FairOver: DRAINAGE DITCH
W LINE SEC 11-9-4, Jackson, IL
Built 1979 Load: 36.6 t ADT: 100
ILL 13 EB
FairOver: PILES FORK CREEK
NEAR ECL CARBONDALE, Jackson, IL
Built 1970 Load: 37.6 t ADT: 19,000
FAS 1923
FairOver: TRIB TO CAVE CREEK
JERUSALEM HILL RD, Jackson, IL
Built 2000 Load: 37.6 t ADT: 150
COUNTY HIGHWAY 8
FairOver: CREEK
NW CORN. VERGENNES, Jackson, IL
Built 1984 Load: 39.2 t ADT: 500
TR 189
FairOver: POND CREEK
EAST LINE SEC 29-8-2, Jackson, IL
Built 1987 Load: 39.5 t ADT: 1,150
TR 267
FairOver: LEWIS CREEK
SE 1/4 SECT. 17-9-2, Jackson, IL
Built 1987 Load: 40.5 t ADT: 600
ILL 149
FairOver: SIX MILE CREEK
0.25 MI.W. HURST, Jackson, IL
Built 1934 Load: 40.8 t ADT: 2,700
PLEASANT HILL ROAD
FairOver: ICG RAILROAD
1/4 MILE EAST RTE 51, Jackson, IL
Built 1982 Load: 41.1 t ADT: 7,600
ILL RTE 127
FairOver: BIG MUDDY RIVER
ECL OF MURPHYSBORO, Jackson, IL
Built 1925 Load: 41.5 t ADT: 5,450
ILL 13 WB
FairOver: MUD CREEK
1 MI. E. MURPHYSBORO, Jackson, IL
Built 1974 Load: 41.5 t ADT: 15,100
FAP 322-US 51
FairOver: BIG MUDDY RIVER
1.8 MI S DESOTO, Jackson, IL
Built 2001 Load: 45.0 t ADT: 6,250
IL 4
FairOver: Beaucoup Creek
0.5 mi west of IL 13, Jackson, IL
Built 2012 Load: 45.4 t ADT: 1,150
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.