County profile · official public datasets

Leon County, FL

165 public highway bridges tracked in the FHWA National Bridge Inventory: 35.8% rated Good, 60% Fair, 4.2% Poor.

165
Public bridges: 35.8%
Good condition: 4.2%
Poor condition

The verdict

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

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

47th
of 67 on Poor share: 4.2%
Poor-condition share: 165
public highway bridges: 1981
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.

Leon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Leon County ranks #47 of 67 Florida counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.2%). Leon County, Florida contains 165 public highway bridges. Roughly 35.8% are rated “Good,” 60% “Fair,” and 4.2% “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.

Total bridges

165

Public highway bridges in Leon County

Good condition

35.8%

59 of 165 rated 7-9

Fair condition

60%

99 of 165 rated 5-6

Poor condition

4.2%

7 of 165 rated 4 or below

In-state Poor-share rank

#47 of 67

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

Condition distribution

Share of 165 NBI-tracked bridges by lowest applicable component rating.

Good

35.8% (59)

Fair

60% (99)

Poor

4.2% (7)

Leon County's Poor-condition bridges carry 8,043 vehicle crossings a day

That is 0.4% of the county's reported daily bridge traffic on 4.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,149 crossings a day against 15,447 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 165 of 165 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

49.1% of Leon County's bridges have passed the 50-year mark

81 of the 165 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 35.8% 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 67.1% of the county's Poor-condition bridge traffic

Springhill Road over Munson Slough, built 1949, carries 5,400 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 7-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 8,043 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

2
1930s

2
1940s

6
1950s

17
1960s

15
1970s

46
1980s

15
1990s

22
2000s

22
2010s

10
2020s

8

What this shows Construction peaked in the 1970s, when 46 of the county's bridges still in the inventory were built, which is 27.9% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1981) matches the Florida average (1983).

How Leon County compares with Florida's closest counties by inventory size

The 5 Florida counties nearest Leon County in number of bridges, with their condition splits. Its 4.2% Poor share is the 4th-lowest of these 6. Its average build year of 1981 against a peer-group mean of 1989 is 8 years older.

Showing the 5 closest of 66 Florida counties eligible for comparison.

Bridge inventory size and condition shares for Leon County and the 5 Florida counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Seminole County	177	82.5%	16.9%	0.6%	2000
Leon County (this page)	165	35.8%	60%	4.2%	1981
Holmes County	156	30.8%	51.3%	17.9%	1987
Pasco County	151	81.5%	17.2%	1.3%	1994
St. Lucie County	151	74.8%	22.5%	2.6%	1981
Jackson County	146	21.2%	71.2%	7.5%	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 Leon 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 Leon County, both outside Florida so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside FL (165 bridges here).

Cleburne County, AL · 165 bridges
Randolph County, AL · 165 bridges
Plumas County, CA · 165 bridges
Hamilton County, IL · 165 bridges

Similar average build year

Nearest mean year-built outside FL (1981 here).

Franklin County, OH · avg 1981 · 922 bridges
Greenville County, SC · avg 1981 · 635 bridges
Montgomery County, OH · avg 1981 · 632 bridges
McLean County, IL · avg 1981 · 624 bridges

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

All 165 Good 59 Fair 99 Poor 7

Good-condition bridges (59)

Sort:

Leon County Bridge Snapshot

Condition distribution

Leon County's Poor-condition bridges carry 8,043 vehicle crossings a day

49.1% of Leon County's bridges have passed the 50-year mark

One structure carries 67.1% of the county's Poor-condition bridge traffic

How Leon County compares with Florida'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 (59)

SR61 US319

S Lake Bradford Rd

Springhill Road

Roberts Avenue

I10 SR8

I10 SR8

US319 SR261

Blair Stone Parkwy

I10 SR8

CR 155

US90 SR10

US90 SR10

SR263

Tram Road

SR263

SR61 Monroe Street

Weems Rd

US319 SR261

Bragg Drive

SR20

Tram Road

US319 SR261

US319 SR261

SR267

Natural Bridge Rd.

SR20

SR373

SR20

SR263

SR263

US319 SR61

E Park Avenue

SR 363 (Duval St.)

SR371

I10 SR8

I10 SR8

SR363 Bronough St

Olson Road

SR 371

Blair Stone Road

I10 SR8

SR363

I10 SR8 WB On Ramp

SR366 Pensacola St

Weems Rd

Weeping Willow Way

I10 SR8

SR366 - Varsity Dr

Centerville Road

SR20

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