County profile · official public datasets

Lake County, OH

210 public highway bridges tracked in the FHWA National Bridge Inventory: 52.9% rated Good, 38.6% Fair, 8.6% Poor.

210
Public bridges
52.9%
Good condition
8.6%
Poor condition

The verdict

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

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

76th
of 88 on Poor share
8.6%
Poor-condition share
210
public highway bridges
1973
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.

Lake County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lake County ranks #76 of 88 Ohio counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.6%). Lake County, Ohio contains 210 public highway bridges. Roughly 52.9% are rated “Good,” 38.6% “Fair,” and 8.6% “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

210

Public highway bridges in Lake County

Good condition

52.9%

111 of 210 rated 7-9

Fair condition

38.6%

81 of 210 rated 5-6

Poor condition

8.6%

18 of 210 rated 4 or below

In-state Poor-share rank

#76 of 88

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

Condition distribution

Share of 210 NBI-tracked bridges by lowest applicable component rating.

Good
52.9% (111)
Fair
38.6% (81)
Poor
8.6% (18)

Lake County's Poor-condition bridges carry 187,447 vehicle crossings a day

That is 7.2% of the county's reported daily bridge traffic on 8.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 10,414 crossings a day against 13,513 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 210 of 210 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

62.9% of Lake County's bridges have passed the 50-year mark

132 of the 210 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 52.9% 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 18.6% of the county's Poor-condition bridge traffic

SR 2 over EAST 337TH ST, built 1962, carries 34,896 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 18-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 187,447 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Lake County's bridges were built

210 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 102 of the county's bridges still in the inventory were built, which is 48.6% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1973) matches the Ohio average (1977).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Lake County compares with Ohio's closest counties by inventory size

The 5 Ohio counties nearest Lake County in number of bridges, with their condition splits. Its 8.6% Poor share is the 6th-lowest of these 6. Its average build year of 1973 against a peer-group mean of 1974 is in line with the group.

Showing the 5 closest of 87 Ohio counties eligible for comparison.

Bridge inventory size and condition shares for Lake County and the 5 Ohio counties closest to it in inventory size
County Bridges Poor
Putnam County 213 4.7%
Lake County (this page) 210 8.6%
Clinton County 209 1.9%
Holmes County 208 2.9%
Noble County 208 7.2%
Meigs County 207 2.9%

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

Similar inventory size

Nearest county inventories outside OH (210 bridges here).

Similar average build year

Nearest mean year-built outside OH (1973 here).

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

Poor-condition bridges (18)

BOOTH ROAD

Poor

Over: STONEY BROOK

0.24 MI. N/ EAGLE ROAD, Lake, OH

Built 1963 Load: 9.7 t ADT: 1,433

BISHOP ROAD

Poor

Over: STREAM

0.59 MI. N/ CUYAHOGA CTY., Lake, OH

Built 1978 Load: 13.0 t ADT: 9,626

MANCHESTER ROAD

Poor

Over: RED MILL CREEK

0.4O MI. E. OF CENTER RD, Lake, OH

Built 1952 Load: 16.2 t ADT: 1,009

TYLER BLVD

Poor

Over: NEWELL CREEK

1.10 MI. E/ S.R.306, Lake, OH

Built 1960 Load: 22.7 t ADT: 9,731

KING MEM RD

Poor

Over: I-90

9.5 MI E SR615, Lake, OH

Built 1961 Load: 25.9 t ADT: 1,295

SR 283

Poor

Over: OVERFLOW FOR CHAGRIN RIV

3.15 MI E SR640, Lake, OH

Built 1932 Load: 25.9 t ADT: 13,813

SR 306

Poor

Over: E BRANCH CHAGRIN RIVER

0.2 MI N SR615, Lake, OH

Built 1952 Load: 25.9 t ADT: 12,465

PAINE ROAD

Poor

Over: PAINE CREEK

2.15 MI.N/LEROY CENTER RD, Lake, OH

Built 1951 Load: 25.9 t ADT: 1,003

MUNSON RD

Poor

Over: SR-2

3/4 MI EAST OF SR-615, Lake, OH

Built 1959 Load: 32.4 t ADT: 5,967

MANTLE RD (CR313)

Poor

Over: SR 2

.5 MI E GRAND RIVER, Lake, OH

Built 1963 Load: 32.4 t ADT: 1,403

USR 6

Poor

Over: CHAGRIN RIV .85 MI E 174

1.15 MI E SR174, Lake, OH

Built 1951 Load: 32.4 t ADT: 8,595

SR 84

Poor

Over: SR-44 (JOHNNYCAKE RIDGE)

1.5 MI S USR20, Lake, OH

Built 1960 Load: 32.4 t ADT: 11,058

SR 283

Poor

Over: SR-44 (LAK-44-0784)

JCT SR 44, Lake, OH

Built 1962 Load: 32.4 t ADT: 7,545

SR 91

Poor

Over: NSC CSX RR N. OF US 20

.5 MI S SR640, Lake, OH

Built 1969 Load: 32.4 t ADT: 30,463

SR 91

Poor

Over: LAKELAND BLVD

.3 MI S SR640, Lake, OH

Built 1969 Load: 32.4 t ADT: 30,463

CHARDON RD

Poor

Over: IR-271

LAK-271-1.05, Lake, OH

Built 1963 Load: 32.4 t ADT: 5,796

SR 2

Poor

Over: EAST 337TH ST

0.75 MI.E. OF JCT E 305, Lake, OH

Built 1962 Load: 50.2 t ADT: 34,896

LEROY THOMPSON RD

Poor

Over: PAINE CREEK

1.4 MI N OF SR 86, Lake, OH

Built 2007 Load: 58.3 t ADT: 886
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.