County profile · official public datasets

Parker County, TX

350 public highway bridges tracked in the FHWA National Bridge Inventory: 49.7% rated Good, 49.1% Fair, 1.1% Poor.

Compiled by PlainBridges

350
Public bridges: 49.7%
Good condition: 1.1%
Poor condition

The verdict

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

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

140th
of 247 on Poor share: 1.1%
Poor-condition share: 350
public highway bridges: 1985
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.

Parker County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Parker County ranks #140 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.1%). Parker County, Texas contains 350 public highway bridges. Roughly 49.7% are rated “Good,” 49.1% “Fair,” and 1.1% “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

350

Public highway bridges in Parker County

Good condition

49.7%

174 of 350 rated 7-9

Fair condition

49.1%

172 of 350 rated 5-6

Poor condition

1.1%

4 of 350 rated 4 or below

In-state Poor-share rank

#140 of 247

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

Condition distribution

Share of 350 NBI-tracked bridges by lowest applicable component rating.

Good

49.7% (174)

Fair

49.1% (172)

Poor

1.1% (4)

Parker County's Poor-condition bridges carry 2,282 vehicle crossings a day

That is 0.1% of the county's reported daily bridge traffic on 1.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 571 crossings a day against 5,681 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 350 of 350 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

36.9% of Parker County's bridges have passed the 50-year mark

129 of the 350 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 49.7% 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 50.8% of the county's Poor-condition bridge traffic

IH 20 NFR over BRAZOS RIVER, built 1934, carries 1,160 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 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 2,282 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1910s

1
1920s

3
1930s

29
1940s

16
1950s

12
1960s

44
1970s

36
1980s

21
1990s

39
2000s

84
2010s

54
2020s

11

What this shows Construction peaked in the 2000s, when 84 of the county's bridges still in the inventory were built, which is 24% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1985, 5 years newer than the Texas average of 1980.

How Parker County compares with Texas's closest counties by inventory size

The 5 Texas counties nearest Parker County in number of bridges, with their condition splits. Its 1.1% Poor share is the 3rd-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1982 is in line with the group.

Showing the 5 closest of 246 Texas counties eligible for comparison.

Bridge inventory size and condition shares for Parker County and the 5 Texas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Cameron County	355	62%	37.5%	0.6%	1992
Parker County (this page)	350	49.7%	49.1%	1.1%	1985
Navarro County	345	40.6%	58.3%	1.2%	1979
Galveston County	344	57.6%	39.5%	2.9%	1987
Victoria County	344	70.1%	27.6%	2.3%	1979
Bowie County	331	46.5%	52.9%	0.6%	1975

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

Similar inventory size

Nearest county inventories outside TX (350 bridges here).

Guernsey County, OH · 350 bridges
Weakley County, TN · 351 bridges
Labette County, KS · 349 bridges
Wilkes County, NC · 349 bridges

Similar average build year

Nearest mean year-built outside TX (1985 here).

Hillsborough County, FL · avg 1985 · 840 bridges
Lancaster County, NE · avg 1985 · 661 bridges
Douglas County, NE · avg 1985 · 509 bridges
Darke County, OH · avg 1985 · 463 bridges

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

All 350 Good 174 Fair 172 Poor 4

All bridges (350)

Sort:

Parker County Bridge Snapshot

Condition distribution

Parker County's Poor-condition bridges carry 2,282 vehicle crossings a day

36.9% of Parker County's bridges have passed the 50-year mark

One structure carries 50.8% of the county's Poor-condition bridge traffic

How Parker County compares with Texas'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 (350)

FM 5

FM 730

FM 730

FM 730

FM 1884

FM 3028

FM 3325

FM 3325

FM 3325

FM 3325

TIN TOP RD PCT 3

LONE STAR RD PCT 2

DRY CK. RD.- PCT 2

ZION HILL LP PCT 2

OLD AGNES - PCT 2

GILLILAND RD PCT 1

HOLBROOK RD PCT 1

E. Dry Creek PCT 2

Earp Rd - PCT 1

SPRINGFIELD PCT 1

SPRINGFIELD PCT 1

KNOB RD - PCT 1

Oxen Ln PCT 2

UPPER DENTON PCT 1

OLD AIRPORT PCT 4

Bear Creek R PCT 4

Bear Creek R PCT 4

HIGHLAND RD PCT 1

GREENWOOD RD PCT 3

LEWIS DEAS R PCT 4

BLUFF SPRNGS PCT 4

OLD WEATHFRD PCT 4

BANKHEAD HWY PCT 4

CENTER POINT PCT 4

SHANES LANE PCT 3

JENKINS RD - PCT 4

UNDERWOOD RD PCT 4

BAKER CUTOFF PCT 3

BAKER RD PCT 3

Spring Creek PCT 3

THOMPSON PCT 3

HARMONY RD PCT 3

LUTION DR PCT 3

OLD DENNIS R PCT 3

OLD DENNIS R PCT 3

OLD DENNIS R PCT 3

BUCKNER RD PCT 3

Christian Wy PCT 1

OLD BROCK RD PCT 3

CLARY RD - PCT 3

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