US Bridges

Evergreen Parkway over US 101

Good

Thurston County, Washington · 2.4 E JCT SR 8 · Structure no. 0009749A0000000

Built
1975
50 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
706 ft
6 main spans
Daily traffic
6,524
2023 count
Owner
State
State Highway Agency

About this bridge

Evergreen Parkway over US 101 is a prestressed concrete continuous box beam or girders - multiple carrying Evergreen Parkway over US 101 in Thurston County, Washington. It was built in 1975, so it is 50 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,524 vehicles a day, roughly 6% of them trucks, projected to reach 9,018 by 2039. The structure is 706 ft (215.2 m) long and 29 ft wide.

CarriesEvergreen Parkway
CrossesUS 101
Location2.4 E JCT SR 8
RouteU.S. Route 101
Coordinates47.04351, -122.96961
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length706 ft (215.2 m)
Longest span145 ft (44.2 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,524 (2023)
Projected traffic9,018 by 2039
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$9.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Evergreen Parkway over US 101 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Evergreen Parkway over US 101 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 2023.

How much traffic does Evergreen Parkway over US 101 carry?

About 6,524 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Evergreen Parkway over US 101?

The structure is 706 ft (215.2 m) long with a longest span of 145 ft (44.2 m) and a deck 29 ft wide.

Who owns Evergreen Parkway over US 101?

It is owned by the State Highway Agency.