US Bridges

Sleater-Kinney RD over I-5

Good

Thurston County, Washington · 4.3 N JCT US 101 · Structure no. 0012964A0000000

Built
1987
38 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
230 ft
2 main spans
Daily traffic
11,270
2016 count
Owner
State
State Highway Agency

About this bridge

Sleater-Kinney RD over I-5 is a prestressed concrete continuous box beam or girders - multiple carrying Sleater-Kinney RD over I-5 in Thurston County, Washington. It was built in 1987, so it is 38 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 11,270 vehicles a day, roughly 2% of them trucks, projected to reach 18,347 by 2038. The structure is 230 ft (70.1 m) long and 94 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSleater-Kinney RD
CrossesI-5
Location4.3 N JCT US 101
RouteCity Street 0
Coordinates47.04625, -122.83372
Functional classUrban Other Principal Arterial

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 inspectionSeptember 2024
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 spans2
Design loadHS 20 + Mod
Structure length230 ft (70.1 m)
Longest span122 ft (37.2 m)
Deck width94 ft (28.7 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,270 (2016)
Projected traffic18,347 by 2038
Trucks2%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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$10.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sleater-Kinney RD over I-5 built?

It was built in 1987, making it 38 years old in 2025.

What condition is Sleater-Kinney RD over I-5 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 September 2024.

How much traffic does Sleater-Kinney RD over I-5 carry?

About 11,270 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is Sleater-Kinney RD over I-5?

The structure is 230 ft (70.1 m) long with a longest span of 122 ft (37.2 m) and a deck 94 ft wide.

Who owns Sleater-Kinney RD over I-5?

It is owned by the State Highway Agency.