County profile · official public datasets

Liberty County, TX

231 public highway bridges tracked in the FHWA National Bridge Inventory: 48.9% rated Good, 48.9% Fair, 2.2% Poor.

231
Public bridges: 48.9%
Good condition: 2.2%
Poor condition

The verdict

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

Liberty County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

183rd
of 247 on Poor share: 2.2%
Poor-condition share: 231
public highway bridges: 1984
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.

Liberty County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Liberty County ranks #183 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.2%). Liberty County, Texas contains 231 public highway bridges. Roughly 48.9% are rated “Good,” 48.9% “Fair,” and 2.2% “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

231

Public highway bridges in Liberty County

Good condition

48.9%

113 of 231 rated 7-9

Fair condition

48.9%

113 of 231 rated 5-6

Poor condition

2.2%

5 of 231 rated 4 or below

In-state Poor-share rank

#183 of 247

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

Condition distribution

Share of 231 NBI-tracked bridges by lowest applicable component rating.

Good

48.9% (113)

Fair

48.9% (113)

Poor

2.2% (5)

Liberty County's Poor-condition bridges carry 7,086 vehicle crossings a day

That is 0.5% of the county's reported daily bridge traffic on 2.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,417 crossings a day against 7,521 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 231 of 231 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

42.4% of Liberty County's bridges have passed the 50-year mark

98 of the 231 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 48.9% 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 44.9% of the county's Poor-condition bridge traffic

FM 563 over SHILOH CREEK, built 1940, carries 3,180 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 5-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 7,086 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

14
1930s

11
1940s

7
1950s

15
1960s

31
1970s

22
1980s

23
1990s

23
2000s

20
2010s

30
2020s

35

What this shows Construction peaked in the 2020s, when 35 of the county's bridges still in the inventory were built, which is 15.2% of those with a recorded year. Those records fall in the current decade of the 2024 inventory. Its average build year (1984) matches the Texas average (1980).

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

The 5 Texas counties nearest Liberty County in number of bridges, with their condition splits. Its 2.2% Poor share is the 4th-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1980 is in line with the group.

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

Bridge inventory size and condition shares for Liberty County and the 5 Texas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
San Patricio County	235	47.7%	50.6%	1.7%	1978
Eastland County	234	40.6%	58.1%	1.3%	1965
Montague County	234	47%	50.4%	2.6%	1985
Washington County	232	38.8%	57.8%	3.4%	1989
Comal County	231	75.8%	24.2%	0%	1984
Liberty County (this page)	231	48.9%	48.9%	2.2%	1984

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

Similar inventory size

Nearest county inventories outside TX (231 bridges here).

Saline County, AR · 231 bridges
Jones County, IA · 231 bridges
Clay County, KS · 231 bridges
Panola County, MS · 231 bridges

Similar average build year

Nearest mean year-built outside TX (1984 here).

Hennepin County, MN · avg 1984 · 936 bridges
Duval County, FL · avg 1984 · 831 bridges
El Paso County, CO · avg 1984 · 686 bridges
Steuben County, NY · avg 1984 · 627 bridges

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

All 231 Good 113 Fair 113 Poor 5

All bridges (231)

Sort:

Liberty County Bridge Snapshot

Condition distribution

Liberty County's Poor-condition bridges carry 7,086 vehicle crossings a day

42.4% of Liberty County's bridges have passed the 50-year mark

One structure carries 44.9% of the county's Poor-condition bridge traffic

How Liberty 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 (231)

US 90 EB

US 90 EB

US 90 EB

FM 2025

SH 105

US 59 NB

US 59 NB

US 59 SB

US 59 NBML

US 59 SBML

US 59 SBFR

US 59 NB

US 59 SB

SH 105

SH 105

SH 105 Ramp H

SH 105 Ramp G

SH 105 Ramp E

SH 105 Ramp F

SH 146

SH 146

SH 146

SH 146

SH 146 NB

SH 321 NB

FM 1409

FM 163

FM 163

FM 163

FM 1410

FM 1413

FM 1960

SH 99

SH 99

SH 99 ML

SH 99

SH 99

SH 99

SH 99

SH 99

SH 99

SH 99

SH 99 WBML

SH 99

SH 99 EBML

SH 99 SB Exit Ramp

SH 99 NB ENT RAMP

SH 99

SH 99

SH 99

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