County profile · official public datasets

Pasco County, FL

151 public highway bridges tracked in the FHWA National Bridge Inventory: 81.5% rated Good, 17.2% Fair, 1.3% Poor.

151
Public bridges: 81.5%
Good condition: 1.3%
Poor condition

The verdict

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

Pasco County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

Top 34%
lowest Poor share in state: 1.3%
Poor-condition share: 151
public highway bridges: 1994
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.

Pasco County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Pasco County ranks #23 of 67 Florida counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.3%). Pasco County, Florida contains 151 public highway bridges. Roughly 81.5% are rated “Good,” 17.2% “Fair,” and 1.3% “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

151

Public highway bridges in Pasco County

Good condition

81.5%

123 of 151 rated 7-9

Fair condition

17.2%

26 of 151 rated 5-6

Poor condition

1.3%

2 of 151 rated 4 or below

In-state Poor-share rank

#23 of 67

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

Condition distribution

Share of 151 NBI-tracked bridges by lowest applicable component rating.

Good

81.5% (123)

Fair

17.2% (26)

Poor

1.3% (2)

Pasco County's Poor-condition bridges carry 6,960 vehicle crossings a day

That is 0.2% of the county's reported daily bridge traffic on 1.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,480 crossings a day against 25,815 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 148 of 151 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

25.8% of Pasco County's bridges have passed the 50-year mark

39 of the 151 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 81.5% 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 94.8% of the county's Poor-condition bridge traffic

GRAND BLVD. CR-595 over PITHLACHASCOTEE RIVER, built 1957, carries 6,600 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 6,960 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

1
1950s

5
1960s

23
1970s

10
1980s

9
1990s

24
2000s

33
2010s

23
2020s

21

What this shows Construction peaked in the 2000s, when 33 of the county's bridges still in the inventory were built, which is 21.9% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1994, 11 years newer than the Florida average of 1983.

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

The 5 Florida counties nearest Pasco County in number of bridges, with their condition splits. Its 1.3% Poor share is the 1st-lowest of these 6. Its average build year of 1994 against a peer-group mean of 1984 is 10 years newer.

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

Bridge inventory size and condition shares for Pasco County and the 5 Florida counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Leon County	165	35.8%	60%	4.2%	1981
Holmes County	156	30.8%	51.3%	17.9%	1987
St. Lucie County	151	74.8%	22.5%	2.6%	1981
Pasco County (this page)	151	81.5%	17.2%	1.3%	1994
Jackson County	146	21.2%	71.2%	7.5%	1982
St. Johns County	141	61%	37.6%	1.4%	1988

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

Similar inventory size

Nearest county inventories outside FL (151 bridges here).

Randolph County, AR · 151 bridges
Hall County, GA · 151 bridges
Richland County, IL · 151 bridges
Benton County, IN · 151 bridges

Similar average build year

Nearest mean year-built outside FL (1994 here).

Denton County, TX · avg 1994 · 991 bridges
St. Charles County, MO · avg 1994 · 417 bridges
Rock County, WI · avg 1994 · 304 bridges
Pitt County, NC · avg 1994 · 228 bridges

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

All 151 Good 123 Fair 26 Poor 2

Good-condition bridges (123)

Sort:

Pasco County Bridge Snapshot

Condition distribution

Pasco County's Poor-condition bridges carry 6,960 vehicle crossings a day

25.8% of Pasco County's bridges have passed the 50-year mark

One structure carries 94.8% of the county's Poor-condition bridge traffic

How Pasco 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 (123)

SR-56 WB

SR-56 EB

DARBY RD (CR-578A)

CR77 (ROWAN RD SB)

I-75 SB (SR-93)

I-75 NB

CREEK ROAD

SEA FOREST DRIVE

HEART PINE AVE SB

HEART PINE AVE NB

SR-56

CR-1 (LITTLE RD)

SR39 (BUCHMAN HWY)

I-75 (SR-93)

STARKEY BLVD.

SR-56

SR 589 SCP 23.0

SR 589 SCP 24.3

I-75 (SR-93)

SR 589 SCP 24.6

I 75 (SR 93)

SR-52

SR-54

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