SR 99 over LAKE UNION

7.7 N JCT SR 509 · County 033, Washington · Built 1931 · 6 Lanes · 61,259 vehicles/day

Overall
Fair
Deck
6
Satisfactory
Superstructure
5
Fair
Substructure
6
Satisfactory

Condition Ratings

ComponentRatingDescription
Deck 6 Satisfactory
Superstructure 5 Fair
Substructure 6 Satisfactory

Location

47.647542, -122.347356

This bridge is in worse condition than 83.7% of bridges in County 033. The average bridge in Washington is 0 years old; this one is 95 years old.

Nearby Bridges

Bridge Details

Structure #
0001447A0000000
Year Built
1931
Length
900.7 m (2955.1 ft)
Max Span
243.8 m
Width
21.2 m (69.6 ft)
Lanes
6
Daily Traffic
61,259
Material
Steel
Design
Truss - Deck
Owner
State Highway Agency
Last Inspected
N/A
Est. Improvement
$41,407,000
Total Project Cost
$82,814,000
Data from FHWA National Bridge Inventory. Bridge conditions may have changed since the last inspection. This site is not affiliated with FHWA. Do not use for route clearance purposes.