Total bridges
355
Public highway bridges in Cameron County
County profile · official public datasets
355 public highway bridges tracked in the FHWA National Bridge Inventory: 62% rated Good, 37.5% Fair, 0.6% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Cameron County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Cameron County ranks #104 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.6%). Cameron County, Texas contains 355 public highway bridges. Roughly 62% are rated “Good,” 37.5% “Fair,” and 0.6% “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
355
Public highway bridges in Cameron County
Good condition
62%
220 of 355 rated 7-9
Fair condition
37.5%
133 of 355 rated 5-6
Poor condition
0.6%
2 of 355 rated 4 or below
In-state Poor-share rank
#104 of 247
Among Texas counties with 5+ bridges, lower share ranks better
Share of 355 NBI-tracked bridges by lowest applicable component rating.
That is 0.2% of the county's reported daily bridge traffic on 0.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 4,165 crossings a day against 12,768 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 355 of 355 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
84 of the 355 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 62% 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.
MINNESOTA AVE over DRAINAGE DITCH, built 1960, carries 7,830 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 2-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 8,330 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
355 bridges with a recorded construction year, grouped by decade
1920–1929
1 bridges
1940–1949
9 bridges
1950–1959
13 bridges
1960–1969
26 bridges
1970–1979
44 bridges
1980–1989
22 bridges
1990–1999
60 bridges
2000–2009
139 bridges
2010–2019
37 bridges
2020–2029
4 bridges
What this shows Construction peaked in the 2000s, when 139 of the county's bridges still in the inventory were built, which is 39.2% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1992, 12 years newer than the Texas average of 1980.
The 5 Texas counties nearest Cameron County in number of bridges, with their condition splits. Its 0.6% Poor share is the 2nd-lowest of these 6. Its average build year of 1992 against a peer-group mean of 1984 is 8 years newer.
Showing the 5 closest of 246 Texas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Brazos County | 370 | 62.4% | 37.6% | 0% | 1989 |
| Cameron County (this page) | 355 | 62% | 37.5% | 0.6% | 1992 |
| Parker County | 350 | 49.7% | 49.1% | 1.1% | 1985 |
| Navarro County | 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 |
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 Cameron County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Cameron County, both outside Texas so the neighborhoods are not the same-state size table above.
Nearest county inventories outside TX (355 bridges here).
Nearest mean year-built outside TX (1992 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: HARLINGEN MAIN CANAL
0.01 MI NW OF JCT FM 1479, Cameron, TX
Over: HARLINGEN MAIN CANAL
0.1 MI NW OF JCT FM 1479, Cameron, TX
Over: DRAINAGE DITCH
2.00 MI E OF FM 800, Cameron, TX
Over: Arroyo Colorado
0.40 Mi N of LP 499, Cameron, TX
Over: SAN BENITO HI LVL CANAL
0.85 MI E OF FM 1479, Cameron, TX
Over: DRAINAGE DITCH
0.10 MI E OF LP 499, Cameron, TX
Over: CCDD #5 DRAIN
0.2 MI E OF PALOMA RD, Cameron, TX
Over: DRAINAGE DITCH D
0.08 MI E OF LP 499, Cameron, TX
Over: Jackass Prairie Creek
2.30 Mi SE of SH 100, Cameron, TX
Over: DRAINAGE DITCH
0.60 MI E OF FM 511, Cameron, TX
Over: DRAINAGE DITCH
1.25 MI SE OF SH 4, Cameron, TX
Over: CCWID#1 MAIN NORTH DRAIN
0.25 MI N OF LP 499, Cameron, TX
Over: DRAINAGE DITCH
0.50 MI N OF SH 4, Cameron, TX
Over: DRAINAGE DITCH
0.35 MI N OF SH 4, Cameron, TX
Over: DRAINAGE DITCH
0.35 MI W OF FM 1419, Cameron, TX
Over: HARLINGEN MAIN CANAL
1.3 MI S OF FM 800, Cameron, TX
Over: HARLINGEN MAIN CANAL
0.5 MI W OF FM 1479, Cameron, TX
Over: HARLINGEN MAIN CANAL
0.85 MI W OF JCT FM 1479, Cameron, TX
Over: LA FERIA MAIN CANAL
0.25 MI W OF JCT FM 506, Cameron, TX
Over: LA FERIA MAIN CANAL
0.25 MI E OF FM 506, Cameron, TX
Over: DRAINAGE DITCH
0.30 MI W OF JCT US 77, Cameron, TX
Over: MAIN DRAIN DITCH NO 1
0.8 MI N OF JCT FM 802, Cameron, TX
Over: CCWID #1 NORTH DRAIN
0.2 MI SW OF JCT SH 4, Cameron, TX
Over: RESACA DE LA GUERRA
0.10 MI S OF SH 4, Cameron, TX
Over: MAIN DRAIN DITCH NO 1
0.4 MI N OF FM 802, Cameron, TX
Over: DRAINAGE DITCH
0.02 MI W OF FM 511, Cameron, TX
Over: DRAINAGE DITCH
0.2 MI E OF STUART PLACE, Cameron, TX
Over: DRAINAGE DITCH
0.05 MI W OF BU 77, Cameron, TX
Over: DRAINAGE DITCH
1.05 MI E OF BU 77, Cameron, TX
Over: DRAINAGE DITCH
0.33 MI NE OF BU 77, Cameron, TX
Over: CCWID #2 DITCH E
0.1 MI SE OF LOVETT RD, Cameron, TX
Over: RESACA DEL RANCHO VIEJO
0.05 MI S OF ALVARADO AVE, Cameron, TX
Over: RESACA DEL RANCHO VIEJO
0.07 MI S OF CORTEZ AVE, Cameron, TX
Over: RESACA DEL RANCHO VIEJO
0.07 MI NW OF PIZARRO AVE, Cameron, TX
Over: RESACA DEL RANCHO VIEJO
0.04 MI S OF TESORO AVE, Cameron, TX
Over: RESACA DEL RANCHO VIEJO
0.05 MI W OF SANTA ANA, Cameron, TX
Over: RESACA DE LOS FRESNOS
0.5 MI SE OF COMBES ST, Cameron, TX
Over: DRAINAGE DITCH
0.60 MI E OF FM 1479, Cameron, TX
Over: INTRACOASTAL WATERWAY
QN ISABELLA CAUSEWAY, Cameron, TX
Over: N FLOODWAY PILOT CHANNEL
4.0 MI SW OF BUS 77, Cameron, TX
Over: BUS77 UPRR & PRIMERA RD
1.10 MI N OF FM 2994, Cameron, TX
Over: BUS77 UPRR & PRIMERA RD
1.10 MI N OF FM 2994, Cameron, TX
Over: N FLOODWAY
5.20 MI NW OF FM 508, Cameron, TX
Over: N FLOODWAY
5.20 MI NW OF FM 508, Cameron, TX
Over: ARROYO COLORADO
1.40 MI NW OF FM 801, Cameron, TX
Over: ARROYO COLORADO
1.40 MI NW OF FM 801, Cameron, TX
Over: SAN BENITO LOW LEVEL CAN
0.90 MI E OF FM 1479, Cameron, TX
Over: Drainage Ditch
0.10 Mi NE of US 77, Cameron, TX
Over: CCDD #1 DITCH #2
1.95 MI S OF SH 100, Cameron, TX
Over: Resaca de los Fresnos
0.20 Mi NW of SH 345, Cameron, TX
Read our methodology - how this data is sourced, computed, and verified.
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.