County profile · official public datasets

Flagler County, FL

105 public highway bridges tracked in the FHWA National Bridge Inventory: 57.1% rated Good, 41% Fair, 1.9% Poor.

105
Public bridges: 57.1%
Good condition: 1.9%
Poor condition

The verdict

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

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

Top 48%
lowest Poor share in state: 1.9%
Poor-condition share: 105
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.

Flagler County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Flagler County ranks #32 of 67 Florida counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.9%). Flagler County, Florida contains 105 public highway bridges. Roughly 57.1% are rated “Good,” 41% “Fair,” and 1.9% “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

105

Public highway bridges in Flagler County

Good condition

57.1%

60 of 105 rated 7-9

Fair condition

41%

43 of 105 rated 5-6

Poor condition

1.9%

2 of 105 rated 4 or below

In-state Poor-share rank

#32 of 67

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

Condition distribution

Share of 105 NBI-tracked bridges by lowest applicable component rating.

Good

57.1% (60)

Fair

41% (43)

Poor

1.9% (2)

Flagler County's Poor-condition bridges carry 8,200 vehicle crossings a day

That is 0.8% of the county's reported daily bridge traffic on 1.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 4,100 crossings a day against 4,967 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 104 of 105 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

39% of Flagler County's bridges have passed the 50-year mark

41 of the 105 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 57.1% 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 64.6% of the county's Poor-condition bridge traffic

Palm Harbor Pkwy over Crandal Waterway, built 1970, carries 5,300 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 8,200 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

3
1930s

4
1940s

3
1950s

7
1960s

12
1970s

16
1980s

22
1990s

5
2000s

19
2010s

14

What this shows Construction peaked in the 1980s, when 22 of the county's bridges still in the inventory were built, which is 21% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1981) matches the Florida average (1983).

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

The 5 Florida counties nearest Flagler County in number of bridges, with their condition splits. Its 1.9% Poor share is the 3rd-lowest of these 6. Its average build year of 1981 against a peer-group mean of 1980 is in line with the group.

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

Bridge inventory size and condition shares for Flagler County and the 5 Florida counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Columbia County	112	50.9%	48.2%	0.9%	1970
Sumter County	112	68.8%	31.3%	0%	1991
Flagler County (this page)	105	57.1%	41%	1.9%	1981
Nassau County	104	49%	48.1%	2.9%	1977
Monroe County	100	34%	59%	7%	1978
Washington County	99	43.4%	46.5%	10.1%	1984

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

Similar inventory size

Nearest county inventories outside FL (105 bridges here).

Bradley County, AR · 105 bridges
Fulton County, AR · 105 bridges
Izard County, AR · 105 bridges
Calaveras County, CA · 105 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 105 Good 60 Fair 43 Poor 2

All bridges (105)

Sort:

Flagler County Bridge Snapshot

Condition distribution

Flagler County's Poor-condition bridges carry 8,200 vehicle crossings a day

39% of Flagler County's bridges have passed the 50-year mark

One structure carries 64.6% of the county's Poor-condition bridge traffic

How Flagler 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

All bridges (105)

US-1 SB

SR-20 (SR 100)

Princess Place RD

CR-55

SR-100 WB

SR-11

SR-100 EB

Royal Palms Pkwy

US-1

Farm Access Road

Matanzas Woods Pkw

US-1 NB

US-1 SB

Matanzas Woods Pky

Old Haw Creek Road

Royal Palms Pkwy

Old Haw Creek Road

CR-305

Secretary Trail

Palm Coast Pkwy

Palm Coast Pkwy EB

Old Kings Road

SR-100

SR-11

SR-11

SR-20 (SR 100)

West Hampton Drive

SR-100

Wellington Drive

CR-305

SR-11

Farm Road

CR 305

Rae Drive

SR-100

CR-305

CR-305

CR-305

Old Kings Road

CR-305

Town Center Blvd.

CR-45

Styles Island Rd

SR-11

Old Kings Road

CR-140

Old Kings Road

Pine Lakes Parkway

SR-11

Belle Terre Parkwy

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