Rowland Boulevard over U.S. Highway 101
FairMarin County, California · 04-MRN-101-R20.19-NVTO · Structure no. 27 0088
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 1,090 ft
- 12 main spans
- Daily traffic
- 6,000
- 1998 count
- Owner
- State
- State Highway Agency
About this bridge
Rowland Boulevard over U.S. Highway 101 is a concrete continuous box beam or girders - multiple carrying Rowland Boulevard over U.S. Highway 101 in Marin County, California. It was built in 1974, so it is 51 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 6,000 vehicles a day, roughly 1% of them trucks, projected to reach 16,246 by 2041. The structure is 1,090 ft (332.2 m) long and 92 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Rowland Boulevard over U.S. Highway 101 built?
It was built in 1974, making it 51 years old in 2025.
What condition is Rowland Boulevard over U.S. Highway 101 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 June 2023.
How much traffic does Rowland Boulevard over U.S. Highway 101 carry?
About 6,000 vehicles per day (1998 count), of which roughly 1% are trucks.
How long is Rowland Boulevard over U.S. Highway 101?
The structure is 1,090 ft (332.2 m) long with a longest span of 93 ft (28.3 m) and a deck 92 ft wide.
Who owns Rowland Boulevard over U.S. Highway 101?
It is owned by the State Highway Agency.