County profile · official public datasets

Harrison County, TX

269 public highway bridges tracked in the FHWA National Bridge Inventory: 41.6% rated Good, 55.8% Fair, 2.6% Poor.

269
Public bridges: 41.6%
Good condition: 2.6%
Poor condition

The verdict

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

Harrison 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.

200th
of 247 on Poor share: 2.6%
Poor-condition share: 269
public highway bridges: 1972
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.

Harrison County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Harrison County ranks #200 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.6%). Harrison County, Texas contains 269 public highway bridges. Roughly 41.6% are rated “Good,” 55.8% “Fair,” and 2.6% “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

269

Public highway bridges in Harrison County

Good condition

41.6%

112 of 269 rated 7-9

Fair condition

55.8%

150 of 269 rated 5-6

Poor condition

2.6%

7 of 269 rated 4 or below

In-state Poor-share rank

#200 of 247

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

Condition distribution

Share of 269 NBI-tracked bridges by lowest applicable component rating.

Good

41.6% (112)

Fair

55.8% (150)

Poor

2.6% (7)

Harrison County's Poor-condition bridges carry 1,471 vehicle crossings a day

That is 0.1% of the county's reported daily bridge traffic on 2.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 210 crossings a day against 3,607 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 268 of 269 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

63.2% of Harrison County's bridges have passed the 50-year mark

170 of the 269 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 41.6% 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 46% of the county's Poor-condition bridge traffic

FM 3001 over LITTLE CYPRESS BYU REL, built 1967, carries 677 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 7-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 1,471 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

1
1930s

26
1940s

6
1950s

35
1960s

87
1970s

22
1980s

23
1990s

33
2000s

15
2010s

18
2020s

3

What this shows Construction peaked in the 1960s, when 87 of the county's bridges still in the inventory were built, which is 32.3% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1972, 8 years older than the Texas average of 1980.

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

The 5 Texas counties nearest Harrison County in number of bridges, with their condition splits. Its 2.6% Poor share is the 4th-lowest of these 6. Its average build year of 1972 against a peer-group mean of 1979 is 7 years older.

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

Bridge inventory size and condition shares for Harrison County and the 5 Texas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Limestone County	280	32.1%	63.9%	3.9%	1975
Hays County	272	79%	20.6%	0.4%	1996
Harrison County (this page)	269	41.6%	55.8%	2.6%	1972
Wise County	264	61.4%	37.5%	1.1%	1989
DeWitt County	263	49.8%	49%	1.1%	1962
Lavaca County	262	50%	47.3%	2.7%	1973

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

Similar inventory size

Nearest county inventories outside TX (269 bridges here).

Grundy County, IL · 269 bridges
Bartholomew County, IN · 269 bridges
Rensselaer County, NY · 269 bridges
Manitowoc County, WI · 269 bridges

Similar average build year

Nearest mean year-built outside TX (1972 here).

Santa Clara County, CA · avg 1972 · 964 bridges
Madison County, AL · avg 1972 · 710 bridges
Kern County, CA · avg 1972 · 668 bridges
York County, PA · avg 1972 · 569 bridges

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

All 269 Good 112 Fair 150 Poor 7

Good-condition bridges (112)

Sort:

Harrison County Bridge Snapshot

Condition distribution

Harrison County's Poor-condition bridges carry 1,471 vehicle crossings a day

63.2% of Harrison County's bridges have passed the 50-year mark

One structure carries 46% of the county's Poor-condition bridge traffic

How Harrison 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 (112)

MILL POND RD

FM 726

AVENUE E

US 59

US 59

US 59

US 59

US 80 EB

US 80

US 80

US 80

FM 3379

FM 2208

FM 2208

FM 2208

FM 2208

SH 43

SH 43

SPUR 449

SH 154

IH 20 EB

IH 20 EB

IH 20 SFR

IH 20 SFR

IH 20 & WB EXIT RP

IH 20 NFR

IH 20 NFR

IH 20 WB/EXIT RAMP

FM 134

FM 134

FM 134

FM 134

FM 451

FM 9

FM 31

FM 449

FM 449

FM 2625

FM 450

FM 2625

LP 390

LP 390

FM 1997

FM 9

FM 9

FM 9

FM 9

FM 9

FM 2625

CR 2200

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