S 15th ST over N-N Ramp
GoodPierce County, Washington · 1.1 N JCT I-5 · Structure no. 0012648B0000000
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected November 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 510 ft
- 4 main spans
- Daily traffic
- 3,690
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
S 15th ST over N-N Ramp is a prestressed concrete continuous box beam or girders - single or spread carrying S 15th ST over N-N Ramp in Pierce 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 3,690 vehicles a day, roughly 3% of them trucks, projected to reach 6,900 by 2036. The structure is 510 ft (155.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 15th ST over N-N Ramp built?
It was built in 1987, making it 38 years old in 2025.
What condition is S 15th ST over N-N 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 2024.
How much traffic does S 15th ST over N-N Ramp carry?
About 3,690 vehicles per day (2007 count), of which roughly 3% are trucks.
How long is S 15th ST over N-N Ramp?
The structure is 510 ft (155.4 m) long with a longest span of 165 ft (50.3 m) and a deck 34 ft wide.
Who owns S 15th ST over N-N Ramp?
It is owned by the State Highway Agency.