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I-90 EB over Unnamed Creek

Kittitas County, Washington · rated Good in the 2025 National Bridge Inventory

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

I-90 EB over Unnamed Creek in Kittitas County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2017, making it 8 years old at the 2025 inventory.
It carries about 18,069 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 133 of the 313 inventoried bridges in Kittitas County rated good (42.5%); 35 (11.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 187 ft
Location	6.2 E Jct SR 906
NBI structure number	0018715D0000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-90 over Coal Creek	1928	18,069	Fair
I-90 over Coal Creek	1956	18,069	Poor
I-90 over Animal Crossing	2010	18,069	Good
I-90 over Animal Crossing	2012	18,069	Good
I-90 over Gold Creek	2011	18,069	Fair
I-90 over Gold Creek	2012	18,069	Good