County profile · official public datasets

Limestone County, TX

280 public highway bridges tracked in the FHWA National Bridge Inventory: 32.1% rated Good, 63.9% Fair, 3.9% Poor.

280
Public bridges: 32.1%
Good condition: 3.9%
Poor condition

The verdict

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

Limestone 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.

232nd
of 247 on Poor share: 3.9%
Poor-condition share: 280
public highway bridges: 1975
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.

Limestone County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Limestone County ranks #232 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.9%). Limestone County, Texas contains 280 public highway bridges. Roughly 32.1% are rated “Good,” 63.9% “Fair,” and 3.9% “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

280

Public highway bridges in Limestone County

Good condition

32.1%

90 of 280 rated 7-9

Fair condition

63.9%

179 of 280 rated 5-6

Poor condition

3.9%

11 of 280 rated 4 or below

In-state Poor-share rank

#232 of 247

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

Condition distribution

Share of 280 NBI-tracked bridges by lowest applicable component rating.

Good

32.1% (90)

Fair

63.9% (179)

Poor

3.9% (11)

Limestone County's Poor-condition bridges carry 940 vehicle crossings a day

That is 0.3% of the county's reported daily bridge traffic on 3.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 85 crossings a day against 947 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 280 of 280 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

47.9% of Limestone County's bridges have passed the 50-year mark

134 of the 280 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 32.1% 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 17.6% of the county's Poor-condition bridge traffic

CO RD 758 over DAVIS CRK #118, built 2002, carries 165 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 11-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 940 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1910s

1
1920s

9
1930s

39
1940s

26
1950s

30
1960s

24
1970s

11
1980s

16
1990s

33
2000s

53
2010s

30
2020s

8

What this shows Construction peaked in the 2000s, when 53 of the county's bridges still in the inventory were built, which is 18.9% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1975, 5 years older than the Texas average of 1980.

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

The 5 Texas counties nearest Limestone County in number of bridges, with their condition splits. Its 3.9% Poor share is the 6th-lowest of these 6. Its average build year of 1975 against a peer-group mean of 1982 is 7 years older.

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

Bridge inventory size and condition shares for Limestone County and the 5 Texas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Gonzales County	284	45.4%	51.8%	2.8%	1969
Cooke County	283	48.1%	49.1%	2.8%	1983
Bastrop County	282	66.3%	33.3%	0.4%	1988
Rusk County	280	24.6%	75%	0.4%	1975
Limestone County (this page)	280	32.1%	63.9%	3.9%	1975
Hays County	272	79%	20.6%	0.4%	1996

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

Similar inventory size

Nearest county inventories outside TX (280 bridges here).

Grant County, IN · 280 bridges
Smith County, KS · 281 bridges
Logan County, OH · 281 bridges
Vanderburgh County, IN · 279 bridges

Similar average build year

Nearest mean year-built outside TX (1975 here).

San Bernardino County, CA · avg 1975 · 1,422 bridges
Lane County, OR · avg 1975 · 1,010 bridges
Fulton County, GA · avg 1975 · 775 bridges
Westmoreland County, PA · avg 1975 · 620 bridges

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

All 280 Good 90 Fair 179 Poor 11

Good-condition bridges (90)

Sort:

Limestone County Bridge Snapshot

Condition distribution

Limestone County's Poor-condition bridges carry 940 vehicle crossings a day

47.9% of Limestone County's bridges have passed the 50-year mark

One structure carries 17.6% of the county's Poor-condition bridge traffic

How Limestone 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

Good-condition bridges (90)

CR 402

CR 412

CR 142

US 84

US 84

SH 14

SH 14

FM 39

FM 39

FM 73

FM 1633

FM 2838

CR 608

US 84

SH 14

SH 14

SH 164

SH 164

SH 171

FM 73

FM 339

FM 339

FM 638

FM 1245

FM 3371

US 84

CR 474

CR 150

CR 648

CR 173

CR 190

CO RD 312

CR 406

CR 182/JACKSON RD

CR 623

FM 39

FM 147

FM 342

FM 342

FM 339

FM 638

FM 638

FM 1245

FM 937

FM 937

FM 937

FM 937

FM 937

FM 937

FM 937

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