Total bridges
232
Public highway bridges in Monroe County
County profile · official public datasets
Monroe County, IN
232 public highway bridges tracked in the FHWA National Bridge Inventory: 62.1% rated Good, 35.8% Fair, 2.2% Poor.
- 232
- Public bridges
- 62.1%
- Good condition
- 2.2%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Monroe County pairs a top-quartile lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 17%
- lowest Poor share in state
- 2.2%
- Poor-condition share
- 232
- public highway bridges
- 1988
- 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.
Monroe County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Monroe County ranks #16 of 92 Indiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.2%). Monroe County, Indiana contains 232 public highway bridges. Roughly 62.1% are rated “Good,” 35.8% “Fair,” and 2.2% “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
62.1%
144 of 232 rated 7-9
Fair condition
35.8%
83 of 232 rated 5-6
Poor condition
2.2%
5 of 232 rated 4 or below
In-state Poor-share rank
#16 of 92
Among Indiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 232 NBI-tracked bridges by lowest applicable component rating.
Good 62.1% (144)
Fair 35.8% (83)
Poor 2.2% (5)
Monroe County's Poor-condition bridges carry 3,332 vehicle crossings a day
That is 0.3% of the county's reported daily bridge traffic on 2.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 666 crossings a day against 6,314 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 231 of 232 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
27.6% of Monroe County's bridges have passed the 50-year mark
64 of the 232 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 62.1% 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 79.6% of the county's Poor-condition bridge traffic
N. EAGELSON AVENUE over INDIANA RR CO, built 1952, carries 2,652 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 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 3,332 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Monroe County's bridges were built
232 bridges with a recorded construction year, grouped by decade
- 1900s 1
1900–1909
1 bridges
- 1910s 1
1910–1919
1 bridges
- 1920s 2
1920–1929
2 bridges
- 1930s 5
1930–1939
5 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s 3
1950–1959
3 bridges
- 1960s
1960–1969
20 bridges
- 1970s
1970–1979
45 bridges
- 1980s
1980–1989
34 bridges
- 1990s
1990–1999
32 bridges
- 2000s
2000–2009
34 bridges
- 2010s
2010–2019
48 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 2010s, when 48 of the county's bridges still in the inventory were built, which is 20.7% of those with a recorded year. That cohort is now 5 to 14 years old in the 2024 inventory. Its average build year is 1988, 10 years newer than the Indiana average of 1978.
How Monroe County compares with Indiana's closest counties by inventory size
The 5 Indiana counties nearest Monroe County in number of bridges, with their condition splits. Its 2.2% Poor share is the 1st-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1977 is 11 years newer.
Showing the 5 closest of 91 Indiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Greene County | 239 | 43.9% | 46.9% | 9.2% | 1982 |
| Monroe County (this page) | 232 | 62.1% | 35.8% | 2.2% | 1988 |
| Johnson County | 230 | 41.3% | 50.4% | 8.3% | 1983 |
| LaPorte County | 227 | 33.5% | 59.9% | 6.6% | 1972 |
| Rush County | 227 | 25.6% | 70.5% | 4% | 1970 |
| St. Joseph County | 227 | 49.8% | 45.4% | 4.8% | 1980 |
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 Monroe 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 Monroe County, both outside Indiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IN (232 bridges here).
- Douglas County, IL · 232 bridges
- Pearl River County, MS · 232 bridges
- Gaston County, NC · 232 bridges
- Atoka County, OK · 232 bridges
Similar average build year
Nearest mean year-built outside IN (1988 here).
- Travis County, TX · avg 1988 · 1,544 bridges
- Grant County, OK · avg 1988 · 476 bridges
- Loudoun County, VA · avg 1988 · 442 bridges
- Licking County, OH · avg 1988 · 439 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (83)
BABY CREEK ROAD
FairOver: BABY CREEK
01.70 E BRUMMETTS CR, Monroe, IN
Built 1994 Load: 32.7 t ADT: 67
KERR CREEK ROAD
FairOver: STEPHENS CREEK
00.10 W GETTYS CR RD, Monroe, IN
Built 1980 Load: 32.7 t ADT: 69
KERR CREEK ROAD
FairOver: KERR CREEK
01.50 NE SR 46, Monroe, IN
Built 2001 Load: 32.7 t ADT: 69
GIFFORD ROAD
FairOver: SINKING CREEK
0.2 MILE SW OF CURRY PIKE, Monroe, IN
Built 2000 Load: 32.7 t ADT: 2,943
OLD SR 46
FairOver: STOUT CREEK
00.60 NW SR 37, Monroe, IN
Built 1929 Load: 32.7 t ADT: 5,376
ROCKPORT ROAD
FairOver: BRANCH CLEAR CREEK
01.00 S TAPP ROAD, Monroe, IN
Built 1990 Load: 32.7 t ADT: 5,626
ISON ROAD
FairOver: TRIBUTARY TO INDIAN CR.
.3 MI WEST OF DUNLAP ROAD, Monroe, IN
Built 1985 Load: 32.7 t ADT: 385
SOUTH ROGERS ST.
FairOver: TRIBUTARY OF CLEAR CREEK
0.01 MI. N. FAIRWAY LANE, Monroe, IN
Built 1988 Load: 32.7 t ADT: 6,209
ROCKPORT ROAD
FairOver: BRANCH CLEAR CREEK
00.10 S TRAMWAY ROAD, Monroe, IN
Built 1986 Load: 33.9 t ADT: 310
HEADLEY STREET
FairOver: GRIFFY RESERVOIR
00.90 N MATLOCK RD, Monroe, IN
Built 1977 Load: 34.0 t ADT: 825
BUSINESS 37 NORTH
FairOver: BEANBLOSSOM CREEK
0.1 MILE SOUTH OF I-69, Monroe, IN
Built 1946 Load: 34.3 t ADT: 11,194
VERNAL PIKE
FairOver: RICHLAND CREEK
00.40 W OARD ROAD, Monroe, IN
Built 1976 Load: 34.7 t ADT: 246
MAPLE GROVE ROAD W
FairOver: JACKS DEFEAT CREEK
INT. OF MATTHEWS DRIVE, Monroe, IN
Built 1971 Load: 34.7 t ADT: 842
SR 37 NBL
FairOver: ABANDONED RR CO ROAD
07.81 N SR 54, Monroe, IN
Built 1972 Load: 35.3 t ADT: 9,620
W ARLINGTON RD
FairOver: I-69 NB/SB
00.07 N SR 46, Monroe, IN
Built 1972 Load: 35.3 t ADT: 5,902
SR 46
FairOver: STEPHENS CREEK
03.00 E SR 446, Monroe, IN
Built 2000 Load: 35.3 t ADT: 7,400
SR 37 NB
FairOver: ABANDONED RR CLEAR CR
04.05 S SR 45, Monroe, IN
Built 1973 Load: 37.2 t ADT: 8,240
SR 37 SB
FairOver: ABANDONED RR CLEAR CR
04.05 S SR 45, Monroe, IN
Built 1973 Load: 37.2 t ADT: 8,450
SR 37 SB
FairOver: ABANDONED RR CO ROAD
07.81 N SR 54, Monroe, IN
Built 1972 Load: 37.3 t ADT: 9,540
POPCORN ROAD
FairOver: BRANCH OF POPCORN CREEK
02.60 W ROCKPORT RD, Monroe, IN
Built 1986 Load: 37.6 t ADT: 637
CHURCH LANE
FairOver: CLEAR CREEK
00.30 E VICTOR PARK, Monroe, IN
Built 1976 Load: 38.2 t ADT: 2,590
I-69 NB
FairOver: GRIFFY CREEK
02.55 N SR 46, Monroe, IN
Built 1972 Load: 38.6 t ADT: 10,184
BUSKIRK ROAD
FairOver: INDIAN CREEK
.1 MILE NORTH OF FRY ROAD, Monroe, IN
Built 1987 Load: 38.6 t ADT: 186
KETCHAM ROAD
FairOver: CLEAR CREEK
00.70 S CEDAR BLUFF, Monroe, IN
Built 1974 Load: 38.6 t ADT: 166
I-69 DRS
FairOver: I-69 NB/SB
02.91 S SR-45, Monroe, IN
Built 2015 Load: 41.1 t ADT: 732
OLD DUTCH CH. ROAD
FairOver: JACKS DEFEAT CREEK
00.10 E RED HILL RD, Monroe, IN
Built 1994 Load: 42.1 t ADT: 134
SR 48
FairOver: RICHLAND CREEK
01.15 E SR 43, Monroe, IN
Built 1987 Load: 42.4 t ADT: 5,419
MT. TABOR ROAD
FairOver: BEANBLOSSOM CREEK
INT. OF BOTTOM ROAD, Monroe, IN
Built 1965 Load: 42.8 t ADT: 611
I-69 NB
FairOver: CSX RR
00.68 N SR 48, Monroe, IN
Built 1972 Load: 43.4 t ADT: 23,326
SR 45
FairOver: KELLER BRANCH
04.49 N SR 445, Monroe, IN
Built 1987 Load: 43.7 t ADT: 12,107
ROCK EAST ROAD
FairOver: LITTLE INDIAN CREEK
00.10 W MT ZION ROAD, Monroe, IN
Built 1988 Load: 44.1 t ADT: 227
FLUCKMILL ROAD
FairOver: BRANCH OF CLEAR CREEK
00.00 INT. OF KETCHAM ROA, Monroe, IN
Built 1930 Load: 46.4 t ADT: 419
OLD SR 37 N
FairOver: GRIFFY CREEK
00.10 E WALNUT STREET, Monroe, IN
Built 1987 Load: 56.5 t ADT: 5,603
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.