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North 18TH Street over Port Arthur Fr Wtr Canal

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

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

North 18TH Street over Port Arthur Fr Wtr Canal in Jefferson 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 5 (fair condition) on the 0-9 scale.
It was built in 1975, making it 50 years old at the 2025 inventory.
It carries about 388 vehicles a day (traffic count year 2019).
Its listed owner is the county highway agency.
It is one of 228 of the 460 inventoried bridges in Jefferson County rated fair (49.6%); 6 (1.3%) 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	5	Fair condition

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

Bridge	Built	Vehicles/day	Condition
Ih 10 over US 90	2002	114,345	Fair
Ih 10 over 11TH St	1958	111,265	Poor
Ih 10 over Fannin St Drainage Ditch	1958	111,265	Fair
Ih 10 over Drainage Ditch	1960	108,624	Fair
Ih 10 Ml over UPRR & Hollywood Ave.	2002	108,624	Good
US 69 Conn to IH10 over Ih 10 Ml	1993	91,000	Fair