Cameron County, TX

355 public highway bridges

Cameron County Bridge Snapshot

Cameron County, Texas contains 355 public highway bridges in the FHWA National Bridge Inventory. Roughly 41.4% are rated “Good,” 25.4% “Fair,” 0.6% “Poor,” and 0.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in TX are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

355

Total Bridges

41.4%

Good

0.6%

Poor

0.6%

Structurally Deficient

Condition Distribution

Good

41.4% (147)

Fair

25.4% (90)

Poor

0.6% (2)

SD

0.6% (2)

All Bridges (355)

Sort:

US 77 SB

Over: BUS77

1.10 MI N OF FM 2994, Cameron, TX

Built 1967 ADT: 6,350

US 77 NB

Over: PRIMERA RD

1.10 MI N OF FM 2994, Cameron, TX

Built 1967 ADT: 24,930

US77/83NB-US2/83WB

Over: Tyler Ave.

US 77/83 INTERCHANGE, Cameron, TX

Built 1971 ADT: 27,166

US 77 SB

Over: MATZ AVE;RR;DRAIN. DITCH

0.25 MI N OF FM 2994, Cameron, TX

Built 1971 ADT: 1,000

US 77 NB

Over: MATZ AVE;RR;DRAIN. DITCH

0.25 MI N OF FM 2994, Cameron, TX

Built 1971 ADT: 1,000

US 77 SB

Over: FM 2994 (WILSON RD)

1.10 MI N OF SPUR 54, Cameron, TX

Built 1971 ADT: 16,600

US 77 NB

Over: FM 2994 (WILSON RD)

1.10 MI N OF SPUR 54, Cameron, TX

Built 1971 ADT: 16,600

US 77 SB

Over: SPUR 54

1.10 MI S OF FM 2994, Cameron, TX

Built 1971 ADT: 4,880

US 77 NB

Over: SPUR 54

1.10 MI S OF FM 2994, Cameron, TX

Built 1971 ADT: 4,880

US 77 SB

Over: BUS 77

1.90 MI NW OF FM 508, Cameron, TX

Built 1972 ADT: 6,336

US 77 NB

Over: BUS 77

1.90 MI NW OF FM 508, Cameron, TX

Built 1972 ADT: 6,336

US 77 SB

Over: FM 508

1.50 MI NW OF LP 499, Cameron, TX

Built 1972 ADT: 5,700

US 77 NB

Over: FM 508

1.50 MI NW OF LP 499, Cameron, TX

Built 1972 ADT: 5,700

US 77 SB

Over: LINCOLN AVE

1.10 MI NW OF FM 1479, Cameron, TX

Built 2004 ADT: 6,000

US 77 NB

Over: LINCOLN AVE

1.10 MI NW OF FM 1479, Cameron, TX

Built 2005 ADT: 6,000

US 77 SB

Over: M ST

0.70 MI NW OF FM 1479, Cameron, TX

Built 2004 ADT: 4,000

US 77 NB

Over: M ST

0.70 MI NW OF FM 1479, Cameron, TX

Built 2005 ADT: 4,000

US 77 NB

Over: F ST

0.20 MI NW OF FM 1479, Cameron, TX

Built 2005 ADT: 3,000

US 77 SB

Over: F ST

0.20 MI NW OF FM 1479, Cameron, TX

Built 2004 ADT: 3,000

US 77 NB

Over: FM 1479/ARROYO COLORADO

1.40 MI NW OF FM 801, Cameron, TX

Built 2005 ADT: 13,000

US 77 SB

Over: FM 1479/ARROYO COLORADO

1.40 MI NW OF FM 801, Cameron, TX

Built 2004 ADT: 13,000

US 77 NB

Over: LOUISIANA AVE

0.95 MI NW OF FM 801, Cameron, TX

Built 2005 ADT: 4,000

US 77 SB

Over: LOUISIANA AVE

0.95 MI NW OF FM 801, Cameron, TX

Built 2004 ADT: 4,000

US 77 NB

Over: New Hampshire Dr

0.45 Mi NW of FM 801, Cameron, TX

Built 2005 ADT: 4,000

US 77 SB

Over: New Hampshire Dr

0.45 Mi NW of FM 801, Cameron, TX

Built 2004 ADT: 4,000

US 77 NB

Over: FM 801 (Ed Carey Dr)

1.50 Mi NW of FM 509, Cameron, TX

Built 2005 ADT: 3,700

US 77 SB

Over: FM 801 (Ed Carey Dr)

1.50 Mi NW of FM 509, Cameron, TX

Built 2005 ADT: 3,700

US 77 NB

Over: FM 509 (HELEN MOORE RD)

1.50 MI SE OF FM 801, Cameron, TX

Built 2005 ADT: 12,960

US 77 SB

Over: FM 509 (HELEN MOORE RD)

1.50 MI SE OF FM 801, Cameron, TX

Built 2004 ADT: 5,990

US 77 NB

Over: Tyler Ave.

0.40 MI S OF SPUR 54, Cameron, TX

Built 2007 ADT: 45,000

US 77 SB

Over: Tyler Ave.

0.40 MI S OF SPUR 54, Cameron, TX

Built 2007 ADT: 45,000

US 77 NB

Over: SPUR 486 (WILLIAMS RD)

1.50 MI NW OF FM 2520, Cameron, TX

Built 2005 ADT: 12,600

US 77 SB

Over: SPUR 486 (WILLIAMS RD)

1.50 MI NW OF FM 2520, Cameron, TX

Built 2005 ADT: 12,600

US 77 NB

Over: RATLIFF ST

1.00 MI NW OF FM 2520, Cameron, TX

Built 2005 ADT: 5,000

US 77 SB

Over: RATLIFF ST

1.00 MI NW OF FM 2520, Cameron, TX

Built 2005 ADT: 5,000

US 77 NB

Over: SH 345 (SAM HOUSTON BLV)

2.10 MI NW OF FM 732, Cameron, TX

Built 2005 ADT: 8,040

US 77 SB

Over: SH 345 (SAM HOUSTON BLV)

2.10 MI NW OF FM 732, Cameron, TX

Built 2005 ADT: 8,040

US 77 SB

Over: McCulloch St

0.50 MI SE OF SH 345, Cameron, TX

Built 2005 ADT: 4,000

US 77 NB

Over: McCulloch St

0.50 MI SE OF SH 345, Cameron, TX

Built 2005 ADT: 4,000

US 77 NB

Over: LINE M RD

1.52 MI SE OF SH 345, Cameron, TX

Built 2005 ADT: 1,000

US 77 SB

Over: LINE M RD

1.52 MI SE OF SH 345, Cameron, TX

Built 2005 ADT: 1,000

US 77 SB

Over: FM 732

2.15 MI SE OF SH 345, Cameron, TX

Built 2005 ADT: 7,530

US 77 NB

Over: FM 732

2.15 MI SE OF SH 345, Cameron, TX

Built 2005 ADT: 7,530

US 77 NB

Over: Rancho Viejo Dr

1.20 Mi NW of FM 511, Cameron, TX

Built 2007 ADT: 500

US 77 NB

Over: RUNNELS ST (FR T/A)

1.05 MI NW OF SH 100, Cameron, TX

Built 1983 ADT: 4,630

US 77 SB

Over: RUNNELS ST (FR T/A)

1.05 MI NW OF SH 100, Cameron, TX

Built 1983 ADT: 4,630

US 77 SB

Over: FM 511

0.90 Mi N of FM 1732, Cameron, TX

Built 1987 ADT: 17,000

US 77 NB

Over: FM 511

0.90 Mi N of FM 1732, Cameron, TX

Built 1987 ADT: 17,000

US 77 NB

Over: ROBERTA RD

1.20 MI SE OF SH 100, Cameron, TX

Built 1990 ADT: 100

US 77 SB

Over: ROBERTA RD

1.20 MI SE OF SH 100, Cameron, TX

Built 1990 ADT: 100

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026