Total bridges
194
Public highway bridges in Adams County
County profile · official public datasets
Adams County, IN
194 public highway bridges tracked in the FHWA National Bridge Inventory: 45.4% rated Good, 53.6% Fair, 1% Poor.
- 194
- Public bridges
- 45.4%
- Good condition
- 1%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Adams County pairs a top-10% lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 8%
- lowest Poor share in state
- 1%
- Poor-condition share
- 194
- public highway bridges
- 1983
- 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.
Adams County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Adams County ranks #7 of 92 Indiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1%). Adams County, Indiana contains 194 public highway bridges. Roughly 45.4% are rated “Good,” 53.6% “Fair,” and 1% “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
45.4%
88 of 194 rated 7-9
Fair condition
53.6%
104 of 194 rated 5-6
Poor condition
1%
2 of 194 rated 4 or below
In-state Poor-share rank
#7 of 92
Among Indiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 194 NBI-tracked bridges by lowest applicable component rating.
Good 45.4% (88)
Fair 53.6% (104)
Poor 1% (2)
Adams County's Poor-condition bridges carry 2,707 vehicle crossings a day
That is 1.3% of the county's reported daily bridge traffic on 1% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,354 crossings a day against 1,397 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 194 of 194 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
27.8% of Adams County's bridges have passed the 50-year mark
54 of the 194 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 45.4% 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 95% of the county's Poor-condition bridge traffic
PIQUA ROAD over GERKE DITCH, built 1976, carries 2,572 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 2-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 2,707 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Adams County's bridges were built
194 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1930s 10
1930–1939
10 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s 4
1950–1959
4 bridges
- 1960s
1960–1969
23 bridges
- 1970s
1970–1979
37 bridges
- 1980s
1980–1989
29 bridges
- 1990s
1990–1999
45 bridges
- 2000s
2000–2009
31 bridges
- 2010s 8
2010–2019
8 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1990s, when 45 of the county's bridges still in the inventory were built, which is 23.2% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year is 1983, 5 years newer than the Indiana average of 1978.
How Adams County compares with Indiana's closest counties by inventory size
The 5 Indiana counties nearest Adams County in number of bridges, with their condition splits. Its 1% Poor share is the 1st-lowest of these 6. Its average build year of 1983 against a peer-group mean of 1976 is 7 years newer.
Showing the 5 closest of 91 Indiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Fountain County | 197 | 24.9% | 67% | 8.1% | 1964 |
| Warrick County | 197 | 48.7% | 47.7% | 3.6% | 1981 |
| Howard County | 194 | 40.2% | 55.2% | 4.6% | 1976 |
| Adams County (this page) | 194 | 45.4% | 53.6% | 1% | 1983 |
| Wabash County | 192 | 28.1% | 65.6% | 6.3% | 1976 |
| Jay County | 191 | 45% | 48.7% | 6.3% | 1982 |
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 Adams 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 Adams County, both outside Indiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IN (194 bridges here).
- Franklin County, AL · 194 bridges
- Poinsett County, AR · 194 bridges
- Trinity County, CA · 194 bridges
- Colquitt County, GA · 194 bridges
Similar average build year
Nearest mean year-built outside IN (1983 here).
- Dallas County, TX · avg 1983 · 3,230 bridges
- Bexar County, TX · avg 1983 · 2,342 bridges
- Sedgwick County, KS · avg 1983 · 1,333 bridges
- Will County, IL · avg 1983 · 649 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (104)
US 33
FairOver: BLUE CREEK
01.18 S SR 101, Adams, IN
Built 1934 Load: 22.5 t ADT: 2,443
CR 300 SOUTH
FairOver: BLUE CREEK
0.20 MILES E OF CR 000, Adams, IN
Built 1957 Load: 23.9 t ADT: 603
CR 500 NORTH
FairOver: HOLTHOUSE DITCH
0.10 MILES E OF CR 400 W, Adams, IN
Built 1965 Load: 24.5 t ADT: 110
CR 400 NORTH
FairOver: HOLTHOUSE DITCH
0.20 MILES W OF CR 400 W, Adams, IN
Built 1964 Load: 24.6 t ADT: 110
CR 600 EAST
FairOver: STAUB DITCH
0.10 MILES N OF CR 1000 N, Adams, IN
Built 1965 Load: 25.2 t ADT: 68
JACKSON STREET
FairOver: ST MARYS RIVER
0.10 MILES E OF 1ST STREE, Adams, IN
Built 1965 Load: 27.0 t ADT: 2,434
CR 225 NORTH
FairOver: BP JOHNSON DITCH
0.90 MILES E OF SR 101, Adams, IN
Built 1975 Load: 27.4 t ADT: 110
CR 1050 SOUTH
FairOver: LOBLOLLY CREEK
0.80 MILES E OF US 27, Adams, IN
Built 1962 Load: 27.8 t ADT: 164
CR 500 SOUTH
FairOver: LUGINBILL DITCH
0.20 MILES W OF CR 525 E, Adams, IN
Built 1976 Load: 27.9 t ADT: 110
SALEM RD (OLD US 3
FairOver: BORUM RUN
0.50 MILES NW OF CR 200 E, Adams, IN
Built 1934 Load: 28.6 t ADT: 8,247
CR 450 SOUTH
FairOver: GATES DITCH
0.10 MILES E OF CR 200 E, Adams, IN
Built 2000 Load: 28.7 t ADT: 110
WINCHESTER ROAD
FairOver: HOLTHOUSE DITCH
0.50 MILES W OF US 27, Adams, IN
Built 1963 Load: 29.3 t ADT: 1,814
CR 400 NORTH
FairOver: BORUM RUN
0.10 MILES W OF US 27, Adams, IN
Built 1983 Load: 29.5 t ADT: 174
CR 200 WEST
FairOver: HOLTHOUSE DITCH
0.10 MILES S OF US 224, Adams, IN
Built 1967 Load: 29.8 t ADT: 235
CR 200 EAST
FairOver: GATES DITCH
0.10 MILES S OF CR 450 S, Adams, IN
Built 1993 Load: 29.8 t ADT: 353
SR 116
FairOver: THREEMILE CREEK
01.51 E SR 218, Adams, IN
Built 1990 Load: 30.1 t ADT: 1,030
CR 850 NORTH
FairOver: GERKE DITCH
0.20 MILES W OF CR 000, Adams, IN
Built 1970 Load: 30.2 t ADT: 110
CR 900 NORTH
FairOver: REINHART DITCH
0.20 MILES E OF CR 500 W, Adams, IN
Built 1982 Load: 30.3 t ADT: 568
SR 218
FairOver: WABASH RIVER OVERFLOW
00.60 E SR 116, Adams, IN
Built 1941 Load: 30.5 t ADT: 2,776
CR 000 E/W
FairOver: BLUE CREEK
0.10 MILES N OF CR 300 S, Adams, IN
Built 1959 Load: 30.8 t ADT: 1,719
PIQUA ROAD
FairOver: DRAKE DITCH
0.50 MILES SE OF SR 101, Adams, IN
Built 1930 Load: 31.0 t ADT: 738
CR 300 NORTH
FairOver: BROWN TILE
0.20 MILES E OF US 27, Adams, IN
Built 1975 Load: 31.0 t ADT: 246
CR 200 EAST
FairOver: BLUE CREEK
0.20 MILES N OF CR 400 S, Adams, IN
Built 1930 Load: 31.1 t ADT: 448
CR 1100 SOUTH
FairOver: BREWSTER DITCH
0.50 MILES W OF CR 400 E, Adams, IN
Built 1993 Load: 31.9 t ADT: 601
SR 101
FairOver: ST MARYS RIVER
00.06 N US 33, Adams, IN
Built 1963 Load: 32.1 t ADT: 1,099
CR 150 WEST
FairOver: WABASH RIVER
0.30 MILES S OF CR 850 S, Adams, IN
Built 1986 Load: 32.6 t ADT: 110
SALEM RD (OLD US 3
FairOver: BRAUN AYRES DITCH
0.10 MILES SE OF CR 200 E, Adams, IN
Built 1934 Load: 32.6 t ADT: 7,300
SR 116
FairOver: RICE LEGAL DITCH
00.36 W SR 218, Adams, IN
Built 1992 Load: 32.7 t ADT: 1,814
CR 1000 NORTH
FairOver: GERKE DITCH
0.10 MILES W OF CR 200 E, Adams, IN
Built 1962 Load: 32.7 t ADT: 110
CR 800 SOUTH
FairOver: BERGER DITCH
0.60 MILES E OF CR 600 E, Adams, IN
Built 1975 Load: 32.7 t ADT: 110
CR 900 SOUTH
FairOver: EGLEY ANDERSON DITCH
0.10 MILES E OF SR 116, Adams, IN
Built 1975 Load: 32.7 t ADT: 122
CR 1200 SOUTH
FairOver: STULTZ DITCH
0.10 MILES E OF CR 600 E, Adams, IN
Built 1994 Load: 32.7 t ADT: 87
INT 650 WEST/825 S
FairOver: JOHN THOMAS DITCH
0.25 MILES S OF CR 800 S, Adams, IN
Built 1983 Load: 32.7 t ADT: 110
SALEM ROAD
FairOver: PJ BRYAN DITCH
0.20 MILES S OF SR 218, Adams, IN
Built 2002 Load: 32.7 t ADT: 179
CR 500 EAST
FairOver: DURBIN DURR DITCH
0.25 MILES S OF CR 100 S, Adams, IN
Built 1964 Load: 32.7 t ADT: 110
CR 300 EAST
FairOver: WAGLEY FARLOW DITCH
0.20 MILES N OF SR 218, Adams, IN
Built 2000 Load: 33.0 t ADT: 110
CR 300 WEST
FairOver: WABASH RIVER
0.50 MILES S OF CR 750 S, Adams, IN
Built 1986 Load: 33.1 t ADT: 164
CR 125 EAST
FairOver: WABASH RIVER
0.40 MILES N OF CR 1200 S, Adams, IN
Built 1979 Load: 33.1 t ADT: 121
CR 000 E/W
FairOver: UPPER WEBER DITCH
0.60 MILES N OF CR 900 N, Adams, IN
Built 1997 Load: 33.1 t ADT: 550
PIQUA ROAD
FairOver: HAUGK DITCH
0.20 MILES S OF US 224, Adams, IN
Built 1980 Load: 33.3 t ADT: 1,681
CR 500 SOUTH
FairOver: MILLER DITCH
0.50 MILES W OF SALEM ROA, Adams, IN
Built 1988 Load: 33.4 t ADT: 110
CR 1100 NORTH
FairOver: SCHROEDER DITCH
0.50 MILES W OF CR 200 W, Adams, IN
Built 1968 Load: 33.5 t ADT: 152
CR 400 WEST
FairOver: BLUE CREEK
0.20 MILES S OF CR 100 S, Adams, IN
Built 1975 Load: 33.5 t ADT: 110
CR 350 WEST
FairOver: ST MARYS RIVER
0.20 MILES N OF WINCH ROA, Adams, IN
Built 1991 Load: 33.8 t ADT: 740
CR 400 WEST
FairOver: BERT SMITH DITCH
0.40 MILES S OF SR 218, Adams, IN
Built 1973 Load: 33.9 t ADT: 110
US 27 NB US 33 NB
FairOver: ST MARYS RIVER OVERFLOW
01.45 N US 224, Adams, IN
Built 1997 Load: 34.0 t ADT: 5,462
CR 100 EAST
FairOver: GERKE DITCH
0.10 MILES S OF CR 900 N, Adams, IN
Built 1990 Load: 35.0 t ADT: 110
CR 300 SOUTH
FairOver: BLUE CREEK
0.40 MILES E OF CR 500 E, Adams, IN
Built 1991 Load: 35.0 t ADT: 149
CR 1100 SOUTH
FairOver: BEARS TILE
0.40 MILES W OF CR 650 W, Adams, IN
Built 1920 Load: 35.1 t ADT: 196
CR 000 E/W
FairOver: UPPER WEBER DITCH
0.50 MILES N OF CR 1000 N, Adams, IN
Built 1975 Load: 35.2 t ADT: 550
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.