County profile · official public datasets

San Augustine County, TX

94 public highway bridges tracked in the FHWA National Bridge Inventory: 46.8% rated Good, 53.2% Fair, 0% Poor.

Compiled by PlainBridges

94
Public bridges: 46.8%
Good condition: 0%
Poor condition

The verdict

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

San Augustine County posts a top-quartile lowest Poor-condition share among rated counties in the state across rated county bridge inventory.

Top 13%
lowest Poor share in state: 0%
Poor-condition share: 94
public highway bridges: 1979
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.

San Augustine County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, San Augustine County ranks #33 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0%). San Augustine County, Texas contains 94 public highway bridges. Roughly 46.8% are rated “Good,” 53.2% “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.

Total bridges

Public highway bridges in San Augustine County

Good condition

46.8%

44 of 94 rated 7-9

Fair condition

53.2%

50 of 94 rated 5-6

Poor condition

0 of 94 rated 4 or below

In-state Poor-share rank

#33 of 247

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

Condition distribution

Share of 94 NBI-tracked bridges by lowest applicable component rating.

Good

46.8% (44)

Fair

53.2% (50)

Poor

0% (0)

45.7% of San Augustine County's bridges have passed the 50-year mark

43 of the 94 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 46.8% 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.

1920s

1
1930s

4
1940s

2
1950s

21
1960s

12
1970s

10
1980s

7
1990s

9
2000s

7
2010s

17
2020s

4

What this shows Construction peaked in the 1950s, when 21 of the county's bridges still in the inventory were built, which is 22.3% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1979) matches the Texas average (1980).

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

The 5 Texas counties nearest San Augustine County in number of bridges, with their condition splits. Its 0% Poor share is the 1st-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1964 is 15 years newer.

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

Bridge inventory size and condition shares for San Augustine County and the 5 Texas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
San Augustine County (this page)	94	46.8%	53.2%	0%	1979
Sabine County	93	50.5%	48.4%	1.1%	1979
Sutton County	92	39.1%	60.9%	0%	1961
Childress County	91	47.3%	50.5%	2.2%	1964
Lampasas County	91	50.5%	49.5%	0%	1958
San Saba County	90	55.6%	43.3%	1.1%	1960

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

Similar inventory size

Nearest county inventories outside TX (94 bridges here).

Yukon-Koyukuk County, AK · 94 bridges
Lee County, AR · 94 bridges
Huerfano County, CO · 94 bridges
Henry County, KY · 94 bridges

Similar average build year

Nearest mean year-built outside TX (1979 here).

Pima County, AZ · avg 1979 · 1,150 bridges
Jefferson County, KY · avg 1979 · 662 bridges
Spartanburg County, SC · avg 1979 · 638 bridges
McPherson County, KS · avg 1979 · 586 bridges

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

All 94 Good 44 Fair 50 Poor 0

All bridges (94)

Sort:

San Augustine County Bridge Snapshot

Condition distribution

45.7% of San Augustine County's bridges have passed the 50-year mark

How San Augustine 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 (94)

STREAM

FM 354

SH 147

SH 147

FM 1277

FM 1277

FM 1277

FM 1277

FM 1277

FM 705

FM 2213

FM 1751

FM 1751

FM 1992

SH 147

FM 3230

FM 705

SH 103

SH 103

SH 21

SH 21

FM 353

FM 2558

US 96

FM 705

FM 1751

FM 1751

FM 83

CR 220

CR 220

CR 254

CR 266

CR 201

CR 201

CR 141

CR 4320

CR 3310

CR 205

CR 312

CR 319

CR 256

CR 313

FM 354

SH 147

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