US Bridges

SR 500 over Thurston Way

Good

Clark County, Washington · 3.9 E JCT I-5 · Structure no. 0016027A0000000

Built
2002
23 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
1 main span
Daily traffic
25,107
2023 count
Owner
State
State Highway Agency

About this bridge

SR 500 over Thurston Way is a prestressed concrete stringer/multi-beam or girder carrying SR 500 over Thurston Way in Clark County, Washington. It was built in 2002, so it is 23 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25,107 vehicles a day, roughly 4% of them trucks, projected to reach 36,886 by 2039. The structure is 218 ft (66.4 m) long and 93 ft wide.

CarriesSR 500
CrossesThurston Way
Location3.9 E JCT I-5
RouteState Highway 500
Coordinates45.65396, -122.58796
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating54 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length218 ft (66.4 m)
Longest span208 ft (63.4 m)
Deck width93 ft (28.3 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,107 (2023)
Projected traffic36,886 by 2039
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$9.5 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 500 over Thurston Way built?

It was built in 2002, making it 23 years old in 2025.

What condition is SR 500 over Thurston Way in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does SR 500 over Thurston Way carry?

About 25,107 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 500 over Thurston Way?

The structure is 218 ft (66.4 m) long with a longest span of 208 ft (63.4 m) and a deck 93 ft wide.

Who owns SR 500 over Thurston Way?

It is owned by the State Highway Agency.