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S 4TH Street over Dock Street

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

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (47.26121, -122.44015)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Deck55Fair condition
Superstructure77Good condition
Substructure77Good condition

Bridge details

StructureContinuous concrete multiple box beam
Lengthabout 519 ft
Location2.0 N Jct I-5 SR73
NBI structure number085586000000000
Condition classFair
Traffic status (item 41)Open, no restriction
Last inspection (item 90)August 2023
Inspection interval (item 91)24 months
Scour (item 113)N: not over a waterway

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

Busiest bridges in Pierce County

BridgeBuiltVehicles/dayCondition
I-5 over Portland Ave1962105,864Fair
I-5 over Portland Ave1962105,864Fair
I-5 over Wapato Creek196097,641Good
I-5 over Wapato Creek196097,641Good
I-5 over Hylebos Creek196096,536Good
I-5 over Hylebos Creek196096,536Good

All bridges nearby: Pierce County, WA bridge conditions · every bridge in Pierce County · Washington bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.