US Bridges

E-S Ramp over S-S Ramp

Good

Thurston County, Washington · 5.8 E JCT SR 8 · Structure no. 0013384B0000000

Built
1990
35 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
12,190
2023 count
Owner
State
State Highway Agency

About this bridge

E-S Ramp over S-S Ramp is a prestressed concrete continuous box beam or girders - multiple carrying E-S Ramp over S-S Ramp in Thurston County, Washington. It was built in 1990, so it is 35 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 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 12,190 vehicles a day, roughly 10% of them trucks, projected to reach 18,980 by 2039. The structure is 240 ft (73.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesE-S Ramp
CrossesS-S Ramp
Location5.8 E JCT SR 8
RouteU.S. Route 101
Coordinates47.02005, -122.90691
Functional classUrban Principal Arterial - Interstate

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length240 ft (73.2 m)
Longest span118 ft (36 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,190 (2023)
Projected traffic18,980 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$3.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was E-S Ramp over S-S Ramp built?

It was built in 1990, making it 35 years old in 2025.

What condition is E-S Ramp over S-S Ramp 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 November 2023.

How much traffic does E-S Ramp over S-S Ramp carry?

About 12,190 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is E-S Ramp over S-S Ramp?

The structure is 240 ft (73.2 m) long with a longest span of 118 ft (36 m) and a deck 28 ft wide.

Who owns E-S Ramp over S-S Ramp?

It is owned by the State Highway Agency.