Whitmore Avenue over ST RTE 99 Ramp & UP RR
GoodStanislaus County, California · 10-STA-099-R11.92 · Structure no. 38 0169
- Built
- 2011
- 14 years old
- Condition
- Good
- inspected March 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 399 ft
- 3 main spans
- Daily traffic
- 12,000
- 2006 count
- Owner
- State
- State Highway Agency
About this bridge
Whitmore Avenue over ST RTE 99 Ramp & UP RR is a prestressed concrete continuous box beam or girders - multiple carrying Whitmore Avenue over ST RTE 99 Ramp & UP RR in Stanislaus County, California. It was built in 2011, so it is 14 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 12,000 vehicles a day, roughly 3% of them trucks, projected to reach 20,329 by 2041. The structure is 399 ft (121.5 m) long and 93 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Whitmore Avenue over ST RTE 99 Ramp & UP RR built?
It was built in 2011, making it 14 years old in 2025.
What condition is Whitmore Avenue over ST RTE 99 Ramp & UP RR in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.
How much traffic does Whitmore Avenue over ST RTE 99 Ramp & UP RR carry?
About 12,000 vehicles per day (2006 count), of which roughly 3% are trucks.
How long is Whitmore Avenue over ST RTE 99 Ramp & UP RR?
The structure is 399 ft (121.5 m) long with a longest span of 137 ft (41.7 m) and a deck 93 ft wide.
Who owns Whitmore Avenue over ST RTE 99 Ramp & UP RR?
It is owned by the State Highway Agency.