Simmerhorn Road over State Route 99
FairSacramento County, California · 03-SAC-099-1.57-GAL · Structure no. 24 0138
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected January 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 195 ft
- 2 main spans
- Daily traffic
- 1,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Simmerhorn Road over State Route 99 is a concrete continuous tee beam carrying Simmerhorn Road over State Route 99 in Sacramento County, California. It was built in 1958, so it is 67 years old, older 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 1,400 vehicles a day, roughly 2% of them trucks, projected to reach 5,379 by 2042. The structure is 195 ft (59.4 m) long and 37 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 Simmerhorn Road over State Route 99 built?
It was built in 1958, making it 67 years old in 2025.
What condition is Simmerhorn Road over State Route 99 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 January 2024.
How much traffic does Simmerhorn Road over State Route 99 carry?
About 1,400 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Simmerhorn Road over State Route 99?
The structure is 195 ft (59.4 m) long with a longest span of 59 ft (18 m) and a deck 37 ft wide.
Who owns Simmerhorn Road over State Route 99?
It is owned by the State Highway Agency.