Total bridges
10
Public highway bridges in Castro County
County profile · official public datasets
Castro County, TX
10 public highway bridges tracked in the FHWA National Bridge Inventory: 90% rated Good, 10% Fair, 0% Poor.
- 10
- Public bridges
- 90%
- Good condition
- 0%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Castro County pairs a better-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- Top 34%
- lowest Poor share in state
- 0%
- Poor-condition share
- 10
- public highway bridges
- 1950
- 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.
Castro County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Castro County ranks #83 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). Castro County, Texas contains 10 public highway bridges. Roughly 90% are rated “Good,” 10% “Fair,” and 0% “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.
Good condition
90%
9 of 10 rated 7-9
Fair condition
10%
1 of 10 rated 5-6
Poor condition
0%
0 of 10 rated 4 or below
In-state Poor-share rank
#83 of 247
Among Texas counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 10 NBI-tracked bridges by lowest applicable component rating.
Good 90% (9)
Fair 10% (1)
Poor 0% (0)
100% of Castro County's bridges have passed the 50-year mark
10 of the 10 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 90% 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.
When Castro County's bridges were built
10 bridges with a recorded construction year, grouped by decade
- 1930s
1930–1939
2 bridges
- 1940s
1940–1949
3 bridges
- 1950s
1950–1959
2 bridges
- 1960s
1960–1969
2 bridges
- 1970s 1
1970–1979
1 bridges
What this shows Construction peaked in the 1940s, when 3 of the county's bridges still in the inventory were built, which is 30% of those with a recorded year. That cohort is now 75 to 84 years old in the 2024 inventory. Its average build year is 1950, 30 years older than the Texas average of 1980.
How Castro County compares with Texas's closest counties by inventory size
The 5 Texas counties nearest Castro County in number of bridges, with their condition splits. Its 0% Poor share is the 5th-lowest of these 6. Its average build year of 1950 against a peer-group mean of 1963 is 13 years older.
Showing the 5 closest of 246 Texas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Crosby County | 15 | 40% | 60% | 0% | 1957 |
| Armstrong County | 11 | 27.3% | 72.7% | 0% | 1948 |
| Lamb County | 11 | 45.5% | 54.5% | 0% | 1963 |
| Floyd County | 10 | 60% | 40% | 0% | 1967 |
| Castro County (this page) | 10 | 90% | 10% | 0% | 1950 |
| Dawson County | 5 | 40% | 60% | 0% | 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 Castro 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 Castro County, both outside Texas so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TX (10 bridges here).
- Lake and Peninsula County, AK · 10 bridges
- Gilchrist County, FL · 10 bridges
- Storey County, NV · 10 bridges
- Lea County, NM · 10 bridges
Similar average build year
Nearest mean year-built outside TX (1950 here).
- Hunterdon County, NJ · avg 1949 · 373 bridges
- Ciales County, PR · avg 1951 · 18 bridges
- Warren County, NJ · avg 1952 · 268 bridges
- Maricao County, PR · avg 1952 · 13 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (10)
US 385
FairOver: DRAINAGE DITCH
AT US 385 & FM 2397 INTER, Castro, TX
Built 1942 Load: 23.6 t ADT: 3,319
US 385
GoodOver: DRAW
2.8 MI N OF FM 1524, Castro, TX
Built 1940 Load: 23.6 t ADT: 2,294
US 385
GoodOver: RUNNING WATER DRAW
3.0 MI S OF FM 145, Castro, TX
Built 1940 Load: 23.6 t ADT: 1,670
SH 86
GoodOver: DRAINAGE DITCH
4.8 MI E OF US 385, Castro, TX
Built 1935 Load: 23.6 t ADT: 1,114
SH 86
GoodOver: DRAINAGE DITCH
0.35 MI W OF FM 168, Castro, TX
Built 1935 Load: 23.6 t ADT: 1,293
FM 145
GoodOver: N FK RUNNING WATER DRAW
5.8 MI E OF US 385, Castro, TX
Built 1957 Load: 23.6 t ADT: 681
FM 168
GoodOver: N FK RUNNING WATER DRAW
2.2 MI S OF SH 194, Castro, TX
Built 1972 Load: 23.6 t ADT: 1,249
FM 1055
GoodOver: FRIO DRAW
6.0 MI N OF FM 2397, Castro, TX
Built 1961 Load: 23.6 t ADT: 900
FM 1057
GoodOver: FRIO DRAW
2.1 MI N OF FM 2397, Castro, TX
Built 1955 Load: 23.6 t ADT: 273
FM 145
GoodOver: RUNNING WATER DRAW
1.2 MI W OF FM 1055, Castro, TX
Built 1962 Load: 23.6 t ADT: 655
Read our methodology - how this data is sourced, computed, and verified.
Related
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.