County profile · official public datasets

San Patricio County, TX

235 public highway bridges tracked in the FHWA National Bridge Inventory: 47.7% rated Good, 50.6% Fair, 1.7% Poor.

235
Public bridges
47.7%
Good condition
1.7%
Poor condition

The verdict

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

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

168th
of 247 on Poor share
1.7%
Poor-condition share
235
public highway bridges
1978
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.

San Patricio County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, San Patricio County ranks #168 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.7%). San Patricio County, Texas contains 235 public highway bridges. Roughly 47.7% are rated “Good,” 50.6% “Fair,” and 1.7% “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

235

Public highway bridges in San Patricio County

Good condition

47.7%

112 of 235 rated 7-9

Fair condition

50.6%

119 of 235 rated 5-6

Poor condition

1.7%

4 of 235 rated 4 or below

In-state Poor-share rank

#168 of 247

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

Condition distribution

Share of 235 NBI-tracked bridges by lowest applicable component rating.

Good
47.7% (112)
Fair
50.6% (119)
Poor
1.7% (4)

San Patricio County's Poor-condition bridges carry 649 vehicle crossings a day

That is 0.1% of the county's reported daily bridge traffic on 1.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 162 crossings a day against 4,843 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 235 of 235 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

46.8% of San Patricio County's bridges have passed the 50-year mark

110 of the 235 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 47.7% 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 82.4% of the county's Poor-condition bridge traffic

CR 1458 (CR 102) over DRAINAGE DITCH, built 1940, carries 535 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 649 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When San Patricio County's bridges were built

235 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 42 of the county's bridges still in the inventory were built, which is 17.9% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1978) matches the Texas average (1980).

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

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

The 5 Texas counties nearest San Patricio County in number of bridges, with their condition splits. Its 1.7% Poor share is the 3rd-lowest of these 6. Its average build year of 1978 against a peer-group mean of 1976 is in line with the group.

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

Bridge inventory size and condition shares for San Patricio County and the 5 Texas counties closest to it in inventory size
County Bridges Poor
Nacogdoches County 237 5.5%
Palo Pinto County 237 0.4%
San Patricio County (this page) 235 1.7%
Eastland County 234 1.3%
Montague County 234 2.6%
Washington County 232 3.4%

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

Similar inventory size

Nearest county inventories outside TX (235 bridges here).

Similar average build year

Nearest mean year-built outside TX (1978 here).

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

Fair-condition bridges (119)

CR 1458 (CR 102)

Fair

Over: DRAINAGE DITCH

2.45 MI E OF FM 631, San Patricio, TX

Built 1940 Load: 24.5 t ADT: 150

CR 1458 (CR 102)

Fair

Over: DRAINAGE DITCH

0.75 MI W OF FM 3284, San Patricio, TX

Built 1940 Load: 24.5 t ADT: 535

RAILROAD/BROADWAY

Fair

Over: DRAINAGE DITCH

AT INT RAILROAD/BROADWAY, San Patricio, TX

Built 1970 Load: 24.5 t ADT: 3,500

FM 796

Fair

Over: CHILTIPIN CREEK

0.8 MI N OF FM 630, San Patricio, TX

Built 1959 Load: 25.4 t ADT: 730

SH 234

Fair

Over: IH 37 WFR

0.1 MI W OF IH 37, San Patricio, TX

Built 1937 Load: 26.3 t ADT: 830

US 181 SB

Fair

Over: TOMLINSON COLEMAN DITCH

2.70 MI NW OF FM 631, San Patricio, TX

Built 1942 Load: 26.3 t ADT: 4,074

US 181 SB

Fair

Over: DRAINAGE DITCH

0.70 MI NW OF FM 631, San Patricio, TX

Built 1942 Load: 26.3 t ADT: 4,074

US 181 SB

Fair

Over: TERRE BONNIE DITCH

1.00 MI SE OF FM 631, San Patricio, TX

Built 1942 Load: 26.3 t ADT: 4,342

US 181 SB

Fair

Over: MUSTANG MOTT DITCH

1.9 MI NW OF FM 2986, San Patricio, TX

Built 1942 Load: 26.3 t ADT: 4,342

US 181 NB

Fair

Over: DRAINAGE DITCH

1.23 MI NE OF FM 3239, San Patricio, TX

Built 1952 Load: 26.3 t ADT: 43,652

US 181

Fair

Over: CHILTIPIN CREEK

0.30 MI N OF SH 188, San Patricio, TX

Built 1922 Load: 27.2 t ADT: 2,201

FM 666

Fair

Over: NUECES RIVER

11.3 MI S OF SH 359, San Patricio, TX

Built 1951 Load: 27.2 t ADT: 1,891

FM 1944

Fair

Over: DRAINAGE DITCH

5.00 MI E OF US 77, San Patricio, TX

Built 1954 Load: 27.2 t ADT: 492

FM 1944

Fair

Over: DRAINAGE DITCH

7.30 MI E OF US 77, San Patricio, TX

Built 1954 Load: 27.2 t ADT: 575

FM 796

Fair

Over: DRAW

1.65 MI N OF IH 37, San Patricio, TX

Built 1955 Load: 27.2 t ADT: 292

CR 21

Fair

Over: IH 37

2.4 MI N OF FM 796, San Patricio, TX

Built 1970 Load: 28.1 t ADT: 200

IH 37 NB

Fair

Over: NUECES RIVER

0.3 MI S OF US 77, San Patricio, TX

Built 1958 Load: 29.0 t ADT: 21,050

US 181 SB

Fair

Over: FM 2986 (WILDCAT DR)

0.45 MI NE OF FM 893, San Patricio, TX

Built 1971 Load: 29.9 t ADT: 22,390

CR 2411 (CR 41)

Fair

Over: CHILTIPIN CREEK TRIB

0.40 MI N OF SH 188, San Patricio, TX

Built 2016 Load: 29.9 t ADT: 208

IH 37 SB

Fair

Over: SPUR 459

1.6 MI SE OF SH 359, San Patricio, TX

Built 1971 Load: 32.7 t ADT: 12,288

IH 37 NB

Fair

Over: SPUR 459

1.6 MI SE OF SH 359, San Patricio, TX

Built 1971 Load: 32.7 t ADT: 10,694

IH 37 NB

Fair

Over: US 77 SB

5.4 MI SE OF SH 234, San Patricio, TX

Built 1986 Load: 32.7 t ADT: 23,066

US 181

Fair

Over: DRAW

2.00 MI S OF FM 3089, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 4,558

SH 89 NB

Fair

Over: US 181

1.05 MI W OF US 77, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 1,550

SH 89 SB

Fair

Over: US 181

1.05 MI W OF US 77, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 1,550

SH 35 SB

Fair

Over: US 181 NB & UP RR

1.3 MI N OF FM 3239, San Patricio, TX

Built 1981 Load: 32.7 t ADT: 17,069

US 181 SB

Fair

Over: FM 3239 (BUDDY GANEM DR)

1.3 MI NE OF FM 2986, San Patricio, TX

Built 1987 Load: 32.7 t ADT: 24,117

SH 35 NB

Fair

Over: US 181 NB & UP RR

1.3 MI N OF FM 3239, San Patricio, TX

Built 1994 Load: 32.7 t ADT: 16,454

FM 893 (MOORE AVE)

Fair

Over: US 181

0.50 MI SW OF FM 2986, San Patricio, TX

Built 1998 Load: 32.7 t ADT: 8,300

US 181 NB

Fair

Over: FM 2986 (WILDCAT DR)

0.45 MI NE OF FM 893, San Patricio, TX

Built 1999 Load: 32.7 t ADT: 22,390

SH 89

Fair

Over: DRAW

1.05 MI W OF US 77, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 9,200

SH 89 SB

Fair

Over: CHILTIPIN CREEK

1.40 MI SE OF US 77, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 1,550

SH 89 NB

Fair

Over: CHILTIPIN CREEK

1.40 MI SE OF US 77, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 1,550

SH 35 SB

Fair

Over: MCCAMPBELL SLOUGH

1.80 MI E OF FM 3512, San Patricio, TX

Built 1984 Load: 32.7 t ADT: 5,450

SH 35 NB

Fair

Over: SH 361 WB SP 202 SPRR

0.9 MI S OF FM 136, San Patricio, TX

Built 1994 Load: 32.7 t ADT: 8,770

SH 361 SB CONN

Fair

Over: SH 35 SB EXIT RAMP

1.2 MI S OF FM 136, San Patricio, TX

Built 1994 Load: 32.7 t ADT: 1,880

BUS 35 SB CONN

Fair

Over: SH 35

0.5 MI W OF FM 1069, San Patricio, TX

Built 1994 Load: 32.7 t ADT: 12,700

US 77 NB

Fair

Over: CHILTIPIN CREEK

0.70 MI N OF SH 188, San Patricio, TX

Built 1979 Load: 32.7 t ADT: 6,308

US 77 NB

Fair

Over: US 181 & DRAIN

1.20 MI NE OF SH 188, San Patricio, TX

Built 1979 Load: 32.7 t ADT: 6,308

US 77 SB

Fair

Over: CHILTIPIN CREEK

0.70 MI N OF SH 188, San Patricio, TX

Built 1991 Load: 32.7 t ADT: 7,360

US 77 SB

Fair

Over: US 181 & DRAIN

1.20 MI NE OF SH 188, San Patricio, TX

Built 1991 Load: 32.7 t ADT: 7,360

US 77 NB

Fair

Over: SH 89

US 77 @ SH 89, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 6,308

US 77 SB

Fair

Over: SH 89

US 77 @ SH 89, San Patricio, TX

Built 2008 Load: 32.7 t ADT: 7,360

US 77 SB

Fair

Over: BUS 77

1.5 MI NE of SH 89, San Patricio, TX

Built 2014 Load: 32.7 t ADT: 6,241

US 77 NB

Fair

Over: BUS 77

1.5 MI NE of SH 89, San Patricio, TX

Built 2014 Load: 32.7 t ADT: 6,712

US 77 NB

Fair

Over: SH 188

1.10 MI S OF US 181, San Patricio, TX

Built 1979 Load: 32.7 t ADT: 6,308

US 77 SB

Fair

Over: FM 1945

1.85 MI S OF SH 188, San Patricio, TX

Built 1991 Load: 32.7 t ADT: 7,372

US 77 NB

Fair

Over: FM 1945

1.85 MI S OF SH 188, San Patricio, TX

Built 1991 Load: 32.7 t ADT: 6,880

US 77 SB

Fair

Over: SH 188

1.10 MI S OF US 181, San Patricio, TX

Built 1991 Load: 32.7 t ADT: 7,360

US 77 SB

Fair

Over: PETERS SWALE

0.50 MI NE OF SH 234, San Patricio, TX

Built 1997 Load: 32.7 t ADT: 8,143
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.