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Terrace Heights Dr over 18TH Street

Yakima County, Washington · rated Fair in the 2025 National Bridge Inventory

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

Terrace Heights Dr over 18TH Street in Yakima County, Washington, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 28,500 vehicles a day (traffic count year 2023).
Its listed owner is a city or municipal highway agency.
It is one of 203 of the 557 inventoried bridges in Yakima County rated fair (36.4%); 31 (5.6%) 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


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 41 ft
Location	00.04 E of N18TH St
NBI structure number	082731000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-82 over Beech St	1962	25,909	Good
I-82 over Beech St	1962	25,909	Good
I-82 over Overflow Channel	1960	25,406	Fair
I-82 over Overflow Channel	1960	25,406	Fair
I-82 over Np Ry Moxee	1961	25,406	Poor
I-82 over Np Ry Moxee	1961	25,406	Fair