Bridgegate DR over Miller Creek
FairMarin County, California · 0.1 MI N Lucas Valley RD · Structure no. 27C0155
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected September 2022
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 62 ft
- 1 main span
- Daily traffic
- 500
- 1988 count
- Owner
- County
- County Highway Agency
About this bridge
Bridgegate DR over Miller Creek is a prestressed concrete tee beam carrying Bridgegate DR over Miller Creek in Marin County, California. It was built in 1987, so it is 38 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 6 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 661 by 2044. The structure is 62 ft (18.9 m) long and 47 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Bridgegate DR over Miller Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is Bridgegate DR over Miller Creek 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 September 2022.
How much traffic does Bridgegate DR over Miller Creek carry?
About 500 vehicles per day (1988 count), of which roughly 2% are trucks.
How long is Bridgegate DR over Miller Creek?
The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 47 ft wide.
Who owns Bridgegate DR over Miller Creek?
It is owned by the County Highway Agency.