Spruce Ave over Colma Creek
PoorSan Mateo County, California · North of South Art Canal · Structure no. 35C0078
- Built
- 1975
- 50 years old
- Condition
- Poor
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 74 ft
- 2 main spans
- Daily traffic
- 17,332
- 2010 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Spruce Ave over Colma Creek is a concrete continuous slab carrying Spruce Ave over Colma Creek in San Mateo County, California. It was built in 1975, so it is 50 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 17,332 vehicles a day, roughly 15% of them trucks, projected to reach 21,808 by 2041. The structure is 74 ft (22.6 m) long and 68 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Spruce Ave over Colma Creek built?
It was built in 1975, making it 50 years old in 2025.
What condition is Spruce Ave over Colma 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 April 2023.
How much traffic does Spruce Ave over Colma Creek carry?
About 17,332 vehicles per day (2010 count), of which roughly 15% are trucks.
How long is Spruce Ave over Colma Creek?
The structure is 74 ft (22.6 m) long with a longest span of 40 ft (12.2 m) and a deck 68 ft wide.
Who owns Spruce Ave over Colma Creek?
It is owned by the City or Municipal Highway Agency.