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Dunbar Estates Dr over Marys Crk

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

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

Dunbar Estates Dr over Marys Crk in Galveston County, Texas, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1983, making it 42 years old at the 2025 inventory.
It carries about 770 vehicles a day (traffic count year 2011).
Its listed owner is a town or township highway agency.
It is one of 9 of the 340 inventoried bridges in Galveston County rated poor (2.6%); 9 (2.6%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings

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