State Route 88 over Silver Lake Spillway
PoorAmador County, California · 10-AMA-088-R65.82 · Structure no. 26 0049
- Built
- 2002
- 23 years old
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 257 ft
- 2 main spans
- Daily traffic
- 2,750
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 88 over Silver Lake Spillway is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 88 over Silver Lake Spillway in Amador County, California. It was built in 2002, so it is 23 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 2,750 vehicles a day, projected to reach 11,136 by 2041. The structure is 257 ft (78.4 m) long and 43 ft wide. If it were closed, the detour would be 70.8 mi (114 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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 88 over Silver Lake Spillway built?
It was built in 2002, making it 23 years old in 2025.
What condition is State Route 88 over Silver Lake Spillway 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 State Route 88 over Silver Lake Spillway carry?
About 2,750 vehicles per day (2009 count).
How long is State Route 88 over Silver Lake Spillway?
The structure is 257 ft (78.4 m) long with a longest span of 129 ft (39.2 m) and a deck 43 ft wide.
Who owns State Route 88 over Silver Lake Spillway?
It is owned by the State Highway Agency.