U.S. Highway 101 over Novato Creek
PoorMarin County, California · 04-MRN-101-R20.51-NVTO · Structure no. 27 0089
- Built
- 1974
- 51 years old, rebuilt 2014
- Condition
- Poor
- inspected June 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 192 ft
- 5 main spans
- Daily traffic
- 61,500
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Novato Creek is a concrete continuous tee beam carrying U.S. Highway 101 over Novato Creek in Marin County, California. It was built in 1974 and reconstructed in 2014, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 61,500 vehicles a day, roughly 5% of them trucks, projected to reach 76,796 by 2041. The structure is 192 ft (58.5 m) long and 158 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Novato Creek built?
It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2014.
What condition is U.S. Highway 101 over Novato Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.
How much traffic does U.S. Highway 101 over Novato Creek carry?
About 61,500 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is U.S. Highway 101 over Novato Creek?
The structure is 192 ft (58.5 m) long with a longest span of 38 ft (11.6 m) and a deck 158 ft wide.
Who owns U.S. Highway 101 over Novato Creek?
It is owned by the State Highway Agency.