County profile · official public datasets

Kosciusko County, IN

152 public highway bridges tracked in the FHWA National Bridge Inventory: 38.2% rated Good, 55.3% Fair, 6.6% Poor.

152
Public bridges: 38.2%
Good condition: 6.6%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Kosciusko County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

65th
of 92 on Poor share: 6.6%
Poor-condition share: 152
public highway bridges: 1975
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.

Kosciusko County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Kosciusko County ranks #65 of 92 Indiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.6%). Kosciusko County, Indiana contains 152 public highway bridges. Roughly 38.2% are rated “Good,” 55.3% “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.

Total bridges

152

Public highway bridges in Kosciusko County

Good condition

38.2%

58 of 152 rated 7-9

Fair condition

55.3%

84 of 152 rated 5-6

Poor condition

6.6%

10 of 152 rated 4 or below

In-state Poor-share rank

#65 of 92

Among Indiana counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 152 NBI-tracked bridges by lowest applicable component rating.

Good

38.2% (58)

Fair

55.3% (84)

Poor

6.6% (10)

Kosciusko County's Poor-condition bridges carry 6,025 vehicle crossings a day

That is 1.4% 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 603 crossings a day against 4,168 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 152 of 152 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

41.4% of Kosciusko County's bridges have passed the 50-year mark

63 of the 152 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 38.2% 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 35.3% of the county's Poor-condition bridge traffic

CR 200S over WALNUT CREEK, built 1970, carries 2,125 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 10-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 6,025 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1910s

1
1920s

13
1930s

4
1940s

4
1950s

7
1960s

9
1970s

40
1980s

40
1990s

15
2000s

6
2010s

11
2020s

2

What this shows Construction peaked in the 1970s, when 40 of the county's bridges still in the inventory were built, which is 26.3% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1975) matches the Indiana average (1978).

How Kosciusko County compares with Indiana's closest counties by inventory size

The 5 Indiana counties nearest Kosciusko County in number of bridges, with their condition splits. Its 6.6% Poor share is the 5th-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1980 is 5 years older.

Showing the 5 closest of 91 Indiana counties eligible for comparison.

Bridge inventory size and condition shares for Kosciusko County and the 5 Indiana counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Jefferson County	153	41.8%	54.2%	3.9%	1977
Kosciusko County (this page)	152	38.2%	55.3%	6.6%	1975
Benton County	151	45.7%	52.3%	2%	1986
Perry County	151	41.1%	57%	2%	1978
Owen County	150	38.7%	51.3%	10%	1978
DeKalb County	149	40.9%	59.1%	0%	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 Kosciusko 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 Kosciusko County, both outside Indiana so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside IN (152 bridges here).

Logan County, AR · 152 bridges
Muhlenberg County, KY · 152 bridges
Clinton County, MO · 152 bridges
Mineral County, MT · 152 bridges

Similar average build year

Nearest mean year-built outside IN (1975 here).

San Bernardino County, CA · avg 1975 · 1,422 bridges
Lane County, OR · avg 1975 · 1,010 bridges
Fulton County, GA · avg 1975 · 775 bridges
Westmoreland County, PA · avg 1975 · 620 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 152 Good 58 Fair 84 Poor 10

Good-condition bridges (58)

Sort:

Kosciusko County Bridge Snapshot

Condition distribution

Kosciusko County's Poor-condition bridges carry 6,025 vehicle crossings a day

41.4% of Kosciusko County's bridges have passed the 50-year mark

One structure carries 35.3% of the county's Poor-condition bridge traffic

How Kosciusko County compares with Indiana's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Good-condition bridges (58)

US 30 WB

US 30 EB

SR 25

CR 1200S

CR 200 WEST

PIERCETON ROAD

SOUTH FRONT STREET

CR 225 EAST

COUNTRY CLUB ROAD

CR 500 WEST

CR 450 WEST

US 30 EB

CR 850 SOUTH

SR 19

SR 15

SR 19

SR 19

SR 25

OLD US 30

OLD US 30

ADMINISTRATION BLV

AUDITORIUM BLVD

EAST SOUTH STREET

CR 100 SOUTH

CR 100 EAST

CEDAR POINT ROAD

LOGAN STREET

CR 300 NORTH

CR 300N

US 30 EB

US 30 WB

BEAVER DAM ROAD

E WAWASEE ROAD

CR 1300 SOUTH

SR 13

WILCOX ROAD

WINONA BEACH ROAD

SR 15

MAIN STREET

PARK AVENUE

CRYSTAL LAKE ROAD

SR 13

EAST SHORE DRIVE

SR 15

SR 25

US 30 EB

US 30 WB

SR 15

CHESTNUT AVENUE

US 30 WB

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