South M Street over Nprr @s 30th ST
FairPosted for loadPierce County, Washington · 0.1 N JCT I-5 · Structure no. 085112000000000
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 170 ft
- 3 main spans
- Daily traffic
- 10,903
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
South M Street over Nprr @s 30th ST is a prestressed concrete stringer/multi-beam or girder carrying South M Street over Nprr @s 30th ST in Pierce County, Washington. It was built in 1960, so it is 65 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 10,903 vehicles a day, roughly 5% of them trucks, projected to reach 19,625 by 2043. The structure is 170 ft (51.8 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South M Street over Nprr @s 30th ST built?
It was built in 1960, making it 65 years old in 2025.
What condition is South M Street over Nprr @s 30th ST in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does South M Street over Nprr @s 30th ST carry?
About 10,903 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is South M Street over Nprr @s 30th ST?
The structure is 170 ft (51.8 m) long with a longest span of 90 ft (27.4 m) and a deck 70 ft wide.
Who owns South M Street over Nprr @s 30th ST?
It is owned by the City or Municipal Highway Agency.