County profile · official public datasets

Navarro County, TX

345 public highway bridges tracked in the FHWA National Bridge Inventory: 40.6% rated Good, 58.3% Fair, 1.2% Poor.

345
Public bridges: 40.6%
Good condition: 1.2%
Poor condition

The verdict

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

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

142nd
of 247 on Poor share: 1.2%
Poor-condition share: 345
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.

Navarro County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Navarro County ranks #142 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.2%). Navarro County, Texas contains 345 public highway bridges. Roughly 40.6% are rated “Good,” 58.3% “Fair,” and 1.2% “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

345

Public highway bridges in Navarro County

Good condition

40.6%

140 of 345 rated 7-9

Fair condition

58.3%

201 of 345 rated 5-6

Poor condition

1.2%

4 of 345 rated 4 or below

In-state Poor-share rank

#142 of 247

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

Condition distribution

Share of 345 NBI-tracked bridges by lowest applicable component rating.

Good

40.6% (140)

Fair

58.3% (201)

Poor

1.2% (4)

Navarro County's Poor-condition bridges carry 310 vehicle crossings a day

That is 0% of the county's reported daily bridge traffic on 1.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 78 crossings a day against 4,633 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 345 of 345 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

47% of Navarro County's bridges have passed the 50-year mark

162 of the 345 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 40.6% 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 32.3% of the county's Poor-condition bridge traffic

CR NE 0070 over Chambers Creek, built 2014, carries 100 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 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 310 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

1
1920s

4
1930s

29
1940s

14
1950s

43
1960s

57
1970s

16
1980s

33
1990s

44
2000s

46
2010s

44
2020s

14

What this shows Construction peaked in the 1960s, when 57 of the county's bridges still in the inventory were built, which is 16.5% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1979) matches the Texas average (1980).

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

The 5 Texas counties nearest Navarro County in number of bridges, with their condition splits. Its 1.2% Poor share is the 4th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1984 is 5 years older.

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

Bridge inventory size and condition shares for Navarro County and the 5 Texas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Cameron County	355	62%	37.5%	0.6%	1992
Parker County	350	49.7%	49.1%	1.1%	1985
Navarro County (this page)	345	40.6%	58.3%	1.2%	1979
Galveston County	344	57.6%	39.5%	2.9%	1987
Victoria County	344	70.1%	27.6%	2.3%	1979
Bowie County	331	46.5%	52.9%	0.6%	1975

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

Similar inventory size

Nearest county inventories outside TX (345 bridges here).

Macon County, IL · 346 bridges
Dubuque County, IA · 346 bridges
Shelby County, AL · 344 bridges
DuPage County, IL · 344 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 345 Good 140 Fair 201 Poor 4

All bridges (345)

Sort:

Navarro County Bridge Snapshot

Condition distribution

Navarro County's Poor-condition bridges carry 310 vehicle crossings a day

47% of Navarro County's bridges have passed the 50-year mark

One structure carries 32.3% of the county's Poor-condition bridge traffic

How Navarro 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 (345)

SH 31 WB

North 15th Street

Jones Br Rd-SE2230

CR NE 3180

CR SW 3110

CR NW 2250

CR NW 1420

CR SW 1100

CR NW 4070

CR SW 3050

N 29TH ST

FM 744

CR SW 2305

CR SW 3110

FM 1129

CR SW 2090

CR NE 2010

CR SW 3040

CR SW 1110

CR SW 2090

CR SW 4110

CR NW 4080

CR NW 2290

CR NE 2110

CR SW 1120

FM 1129

IH45 WFR

IH 45

IH 45

IH 45 EFR

IH 45 EFR/CR SE 20

BUS 45 (7TH ST)

BUS 45 (7TH ST)

IH 45 WFR

IH 45 ML & WFR

IH 45

IH 45 WFR

IH 45 EFR

IH 45 EFR

IH 45 EFR

IH 45 EFR

SH 14

SH 14

SH 14

SH 14

SH 22

SH 22

SH 22

US287

US287

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