County profile · official public datasets

Hendricks County, IN

355 public highway bridges tracked in the FHWA National Bridge Inventory: 41.4% rated Good, 56.3% Fair, 2.3% Poor.

355
Public bridges: 41.4%
Good condition: 2.3%
Poor condition

The verdict

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

Hendricks County posts a top-quartile lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 20%
lowest Poor share in state: 2.3%
Poor-condition share: 355
public highway bridges: 1982
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.

Hendricks County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Hendricks County ranks #18 of 92 Indiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.3%). Hendricks County, Indiana contains 355 public highway bridges. Roughly 41.4% are rated “Good,” 56.3% “Fair,” and 2.3% “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

355

Public highway bridges in Hendricks County

Good condition

41.4%

147 of 355 rated 7-9

Fair condition

56.3%

200 of 355 rated 5-6

Poor condition

2.3%

8 of 355 rated 4 or below

In-state Poor-share rank

#18 of 92

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

Condition distribution

Share of 355 NBI-tracked bridges by lowest applicable component rating.

Good

41.4% (147)

Fair

56.3% (200)

Poor

2.3% (8)

Hendricks County's Poor-condition bridges carry 12,877 vehicle crossings a day

That is 0.6% of the county's reported daily bridge traffic on 2.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,610 crossings a day against 6,997 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 355 of 355 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

36.3% of Hendricks County's bridges have passed the 50-year mark

129 of the 355 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 41.4% 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 42.7% of the county's Poor-condition bridge traffic

CR 450S over E FORK OF WHITE LICK CR, built 1900, carries 5,500 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 8-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 12,877 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

2
1910s

1
1920s

5
1930s

21
1940s

15
1950s

15
1960s

51
1970s

44
1980s

59
1990s

46
2000s

38
2010s

38
2020s

20

What this shows Construction peaked in the 1980s, when 59 of the county's bridges still in the inventory were built, which is 16.6% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1982) matches the Indiana average (1978).

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

The 5 Indiana counties nearest Hendricks County in number of bridges, with their condition splits. Its 2.3% Poor share is the 1st-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1979 is in line with the group.

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

Bridge inventory size and condition shares for Hendricks County and the 5 Indiana counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Gibson County	362	42.8%	53%	4.1%	1978
Hendricks County (this page)	355	41.4%	56.3%	2.3%	1982
Wayne County	343	41.1%	54.8%	4.1%	1975
Tippecanoe County	330	55.2%	39.7%	5.2%	1982
Jackson County	321	43.9%	53.6%	2.5%	1981
Madison County	301	44.5%	52.5%	3%	1978

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 Hendricks 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 Hendricks County, both outside Indiana so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside IN (355 bridges here).

Cameron County, TX · 355 bridges
Burlington County, NJ · 356 bridges
Richland County, OH · 356 bridges
Ross County, OH · 356 bridges

Similar average build year

Nearest mean year-built outside IN (1982 here).

Oklahoma County, OK · avg 1982 · 1,216 bridges
Jackson County, MO · avg 1982 · 930 bridges
Milwaukee County, WI · avg 1982 · 893 bridges
Champaign County, IL · avg 1982 · 727 bridges

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

All 355 Good 147 Fair 200 Poor 8

Good-condition bridges (147)

Sort:

Hendricks County Bridge Snapshot

Condition distribution

Hendricks County's Poor-condition bridges carry 12,877 vehicle crossings a day

36.3% of Hendricks County's bridges have passed the 50-year mark

One structure carries 42.7% of the county's Poor-condition bridge traffic

How Hendricks 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 (147)

I-70 EB

I-74 WB

CR 700S

CR 100W

US 36 WB

I-70 WB & CD

I-70 EB CD

CR 600N (56TH ST)

RONALD REAGAN NB

RONALD REAGAN PKWY

CR 150S

CR 425E

CR 500E

I-74 EB

CR 700N

CR 100N

SR 39

I-74 EB

I-74 WB

CR 225E

SR 39

CR 200 N

RONALD REAGAN PKWY

CR 400E

CR 200W

CR 275E

US 36

SR 75

US 136

I-70 EB EXIT RAMP

SR 39

CR 550W

AMERIPLEX PARKWAY

CR 400W

CR 300S

US 40

CR 300S

SOUTH AVON AVENUE

STANLEY ROAD

I-74 EB

I-74 WB

RACEWAY RD

US 40

CR 350S

CR 200W

US 36

BROOKLINE DR

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