US Bridges

S 30th ST over S-S Ramp

Good

Pierce County, Washington · 0.1 N JCT I-5 · Structure no. 0007505E0000000

Built
1965
60 years old
Condition
Good
inspected November 2021
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
193 ft
3 main spans
Daily traffic
3,475
2002 count
Owner
State
State Highway Agency

About this bridge

S 30th ST over S-S Ramp is a concrete continuous box beam or girders - multiple carrying S 30th ST over S-S Ramp in Pierce County, Washington. It was built in 1965, so it is 60 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 3,475 vehicles a day, roughly 5% of them trucks, projected to reach 6,311 by 2036. The structure is 193 ft (58.8 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS 30th ST
CrossesS-S Ramp
Location0.1 N JCT I-5
RouteCity Street 0
Coordinates47.23403, -122.43547
Functional classUrban Collector

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 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.9 US tons
Inventory rating46 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length193 ft (58.8 m)
Longest span82 ft (25 m)
Deck width41 ft (12.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,475 (2002)
Projected traffic6,311 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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$2.6 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 30th ST over S-S Ramp built?

It was built in 1965, making it 60 years old in 2025.

What condition is S 30th ST 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 2021.

How much traffic does S 30th ST over S-S Ramp carry?

About 3,475 vehicles per day (2002 count), of which roughly 5% are trucks.

How long is S 30th ST over S-S Ramp?

The structure is 193 ft (58.8 m) long with a longest span of 82 ft (25 m) and a deck 41 ft wide.

Who owns S 30th ST over S-S Ramp?

It is owned by the State Highway Agency.