County profile · official public datasets

McMullen County, TX

63 public highway bridges tracked in the FHWA National Bridge Inventory: 63.5% rated Good, 33.3% Fair, 3.2% Poor.

63
Public bridges
63.5%
Good condition
3.2%
Poor condition

The verdict

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

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

216th
of 247 on Poor share
3.2%
Poor-condition share
63
public highway bridges
1969
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.

McMullen County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, McMullen County ranks #216 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.2%). McMullen County, Texas contains 63 public highway bridges. Roughly 63.5% are rated “Good,” 33.3% “Fair,” and 3.2% “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

63

Public highway bridges in McMullen County

Good condition

63.5%

40 of 63 rated 7-9

Fair condition

33.3%

21 of 63 rated 5-6

Poor condition

3.2%

2 of 63 rated 4 or below

In-state Poor-share rank

#216 of 247

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

Condition distribution

Share of 63 NBI-tracked bridges by lowest applicable component rating.

Good
63.5% (40)
Fair
33.3% (21)
Poor
3.2% (2)

McMullen County's Poor-condition bridges carry 7,409 vehicle crossings a day

That is 3% of the county's reported daily bridge traffic on 3.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,705 crossings a day against 3,576 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 63 of 63 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

68.3% of McMullen County's bridges have passed the 50-year mark

43 of the 63 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 63.5% 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 59.2% of the county's Poor-condition bridge traffic

SH 16 over FRIO RIVER, built 1954, carries 4,389 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 7,409 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When McMullen County's bridges were built

63 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1940s, when 16 of the county's bridges still in the inventory were built, which is 25.4% of those with a recorded year. That cohort is now 75 to 84 years old in the 2024 inventory. Its average build year is 1969, 11 years older than the Texas average of 1980.

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

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

The 5 Texas counties nearest McMullen County in number of bridges, with their condition splits. Its 3.2% Poor share is the 4th-lowest of these 6. Its average build year of 1969 against a peer-group mean of 1963 is 6 years newer.

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

Bridge inventory size and condition shares for McMullen County and the 5 Texas counties closest to it in inventory size
County Bridges Poor
Collingsworth County 65 4.6%
Starr County 64 3.1%
Blanco County 63 0%
Menard County 63 0%
McMullen County (this page) 63 3.2%
Foard County 60 5%

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

Similar inventory size

Nearest county inventories outside TX (63 bridges here).

Similar average build year

Nearest mean year-built outside TX (1969 here).

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

Poor-condition bridges (2)

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.