County profile · official public datasets

Lamar County, TX

307 public highway bridges tracked in the FHWA National Bridge Inventory: 46.6% rated Good, 50.5% Fair, 2.9% Poor.

307
Public bridges
46.6%
Good condition
2.9%
Poor condition

The verdict

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

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

210th
of 247 on Poor share
2.9%
Poor-condition share
307
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.

Lamar County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lamar County ranks #210 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.9%). Lamar County, Texas contains 307 public highway bridges. Roughly 46.6% are rated “Good,” 50.5% “Fair,” and 2.9% “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

307

Public highway bridges in Lamar County

Good condition

46.6%

143 of 307 rated 7-9

Fair condition

50.5%

155 of 307 rated 5-6

Poor condition

2.9%

9 of 307 rated 4 or below

In-state Poor-share rank

#210 of 247

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

Condition distribution

Share of 307 NBI-tracked bridges by lowest applicable component rating.

Good
46.6% (143)
Fair
50.5% (155)
Poor
2.9% (9)

Lamar County's Poor-condition bridges carry 32,468 vehicle crossings a day

That is 4.9% of the county's reported daily bridge traffic on 2.9% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 3,608 crossings a day against 1,200 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 306 of 307 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

36.5% of Lamar County's bridges have passed the 50-year mark

112 of the 307 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 46.6% 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 76.5% of the county's Poor-condition bridge traffic

US 82 over STILLHOUSE CREEK, built 1959, carries 24,836 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 9-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 32,468 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Lamar County's bridges were built

307 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 77 of the county's bridges still in the inventory were built, which is 25.1% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1984) matches the Texas average (1980).

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

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

The 5 Texas counties nearest Lamar County in number of bridges, with their condition splits. Its 2.9% Poor share is the 5th-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1978 is 6 years newer.

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

Bridge inventory size and condition shares for Lamar County and the 5 Texas counties closest to it in inventory size
County Bridges Poor
Tom Green County 310 0.6%
Falls County 308 2.3%
Fannin County 307 5.5%
Lamar County (this page) 307 2.9%
Guadalupe County 296 0%
Gonzales County 284 2.8%

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

Similar inventory size

Nearest county inventories outside TX (307 bridges here).

Similar average build year

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

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

Good-condition bridges (143)

CR 24140

Good

Over: Tributary of Mallory Crk

1.6 Mi S of FM 1184, Lamar, TX

Built 2005 Load: 32.7 t ADT: 10

CR 24280

Good

Over: Maxwell Creek

1.1 Mi NE of FM 2675, Lamar, TX

Built 2005 Load: 32.7 t ADT: 100

CR 24580

Good

Over: Mallory Creek

1.2 MI N of FM 137, Lamar, TX

Built 2003 Load: 32.7 t ADT: 30

CR 508 (23300)

Good

Over: Mallory Creek

0.3 Mi W of FM 1506, Lamar, TX

Built 2006 Load: 32.7 t ADT: 100

CR 510 (24800)

Good

Over: Tributary of Cane Creek

0.4 Mi W of FM 38, Lamar, TX

Built 2009 Load: 32.7 t ADT: 100

CR 510 (24800)

Good

Over: Cane Creek

0.3 MI W of FM 38, Lamar, TX

Built 2017 Load: 32.7 t ADT: 50

CR 514 (24750)

Good

Over: Branch of Maxwell Creek

1.3 Mi SW of FM 1506, Lamar, TX

Built 2005 Load: 32.7 t ADT: 10

CR 529 (24100)

Good

Over: Baker Branch Creek

0.5 Mi W of SH 19, Lamar, TX

Built 2009 Load: 32.7 t ADT: 100

CR 25630

Good

Over: Rowdy Creek

2.6 Mi S of FM 1509, Lamar, TX

Built 2005 Load: 32.7 t ADT: 100

CR 25630

Good

Over: Tributary of Rowdy Creek

3.1 MI S of FM 1509, Lamar, TX

Built 2017 Load: 32.7 t ADT: 30

CR 25500

Good

Over: Rowdy Creek

1.8 Mi E of FM 137, Lamar, TX

Built 2002 Load: 32.7 t ADT: 100

CR 25500

Good

Over: Branch of Rowdy Creek

1.1 Mi W of CR 24900, Lamar, TX

Built 2003 Load: 32.7 t ADT: 100

CR 543 (25570)

Good

Over: North Branch Creek

1.8 Mi S of FM 1509, Lamar, TX

Built 2010 Load: 32.7 t ADT: 60

CR 558 (26920)

Good

Over: Three Mile Creek

1.6 Mi S of US 82, Lamar, TX

Built 2010 Load: 32.7 t ADT: 100

CR 560 (26720)

Good

Over: Three Mile Creek

0.8 Mi E of Fannin CL, Lamar, TX

Built 2005 Load: 32.7 t ADT: 10

CR 562 (26750)

Good

Over: Ghost Creek

0.4 Mi W of FM 137, Lamar, TX

Built 2005 Load: 32.7 t ADT: 100

CR 26050

Good

Over: MORRISON CREEK

1.7 MI S OF FM 137, Lamar, TX

Built 2021 Load: 32.7 t ADT: 10

CR 26100

Good

Over: Ghost Creek

3.5 Mi S of FM 137, Lamar, TX

Built 2006 Load: 32.7 t ADT: 100

CR 576 (26320)

Good

Over: Noble Creek

1.5 Mi E of FM 824, Lamar, TX

Built 2003 Load: 32.7 t ADT: 100

CR 578 (26600)

Good

Over: Noble Creek

0.7 Mi E of FM 137, Lamar, TX

Built 2013 Load: 32.7 t ADT: 100

CR 26800

Good

Over: Three Mile Creek

0.9 Mi E of FM 137, Lamar, TX

Built 2005 Load: 32.7 t ADT: 100

CR 580 (26400)

Good

Over: Ghost Creek

0.8 Mi W of FM 137, Lamar, TX

Built 2005 Load: 32.7 t ADT: 100

CR 26300

Good

Over: TRIB OF GHOST CREEK

1.0 MI N OF FM 824, Lamar, TX

Built 2021 Load: 32.7 t

CR 584 (27300)

Good

Over: Whittenburg Creek

1.4 Mi SE of FM 824, Lamar, TX

Built 2005 Load: 32.7 t ADT: 100

CR 584 (27300)

Good

Over: Whittenburg Creek Branch

0.9 Mi SE of FM 824, Lamar, TX

Built 2013 Load: 32.7 t ADT: 100

CR 631 (26702)

Good

Over: Noble Creek

0.3 Mi W of FM 137, Lamar, TX

Built 2013 Load: 32.7 t ADT: 10

CR 15100

Good

Over: BRANCH OF CUTHAND CREEK

2.1 MI S OF FM 194, Lamar, TX

Built 2022 Load: 32.7 t ADT: 35

Choctaw St

Good

Over: Mustang Creek

0.02 Mi E of BU 271, Lamar, TX

Built 2005 Load: 32.7 t ADT: 520

2nd Street

Good

Over: Cane Creek

0.2 Mi E of FM 38, Lamar, TX

Built 2003 Load: 32.7 t ADT: 270

Hackleman St

Good

Over: Denton Creek

0.3 Mi S of FM 137, Lamar, TX

Built 2013 Load: 32.7 t ADT: 100

High Street

Good

Over: Denton Creek

0.04 Mi N of FM 137, Lamar, TX

Built 2015 Load: 32.7 t ADT: 100

MARKET ST

Good

Over: CANE CREEK

0.1 MI W OF FM 38, Lamar, TX

Built 2017 Load: 32.7 t ADT: 150

FM 38

Good

Over: CANE CREEK

0.7 MI N OF FM 137, Lamar, TX

Built 1955 Load: 33.6 t ADT: 844

FM 1499

Good

Over: CRADDOCK CR

3.80 MI S OF FM 197, Lamar, TX

Built 1967 Load: 35.4 t ADT: 272

FM 1184

Good

Over: AUDS CREEK RELIEF 2

1.5 MI E OF SH 24, Lamar, TX

Built 1980 Load: 36.3 t ADT: 546

US 82

Good

Over: MULBERRY CREEK BRANCH

5.5 MI E OF US 271, Lamar, TX

Built 1950 Load: 40.8 t ADT: 9,490

US 82

Good

Over: MULBERRY CREEK BRANCH

6.0 MI E OF US 271, Lamar, TX

Built 1950 Load: 40.8 t ADT: 9,490

SH 19 SB

Good

Over: ROBERTSON CREEK

0.1 MI N OF FM 1184, Lamar, TX

Built 1940 Load: 40.8 t ADT: 3,999

SH 19 NB

Good

Over: ROBERTSON CREEK

0.1 MI N OF FM 1184, Lamar, TX

Built 1986 Load: 40.8 t ADT: 3,694

SH 19 SB

Good

Over: COTTONWOOD BRANCH

2.7 MI SW OF LOOP 286, Lamar, TX

Built 1986 Load: 40.8 t ADT: 4,675

FM 38

Good

Over: SANDERS CREEK

0.8 MI E OF FM 2352, Lamar, TX

Built 1988 Load: 40.8 t ADT: 2,325

FM 38

Good

Over: COTTONWOOD CREEK

2.6 MI E OF FM 2352, Lamar, TX

Built 1988 Load: 40.8 t ADT: 2,325

CR 36100

Good

Over: Gordon Creek

1.8 MI W OF FM 38, Lamar, TX

Built 2017 Load: 40.8 t ADT: 10
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.