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Isla Del Sol Drive over Isla Del Sol Bayou

Galveston County, Texas · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Isla Del Sol Drive over Isla Del Sol Bayou in Galveston County, Texas, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1985, making it 40 years old at the 2025 inventory.
It carries about 91 vehicles a day (traffic count year 2018).
Its listed owner is a city or municipal highway agency.
It is one of 142 of the 340 inventoried bridges in Galveston County rated fair (41.8%); 9 (2.6%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Culvert	6	Satisfactory condition

Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.

Bridge	Built	Vehicles/day	Condition
IH 45 MLs & FRs over Clear Crk Trib	1998	171,700	Good
Ih 45 over FM 518	2020	144,300	Good
Ih 45 Nbml over FM 646	2020	115,900	Good
Ih 45 Sbml over FM 646	2020	115,900	Good
Ih 45 Nbml over Magnolia Bayou	2020	115,900	Good
Ih 45 SB over Magnolia Bayou	2022	115,900	Good