Avenue 18.5 over Eastside Bypass Channel
PoorClosed to trafficMadera County, California · 2.0 MI East of Road 4 · Structure no. 41C0089
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected March 2023
- Type
- Slab
- Concrete Continuous
- Length
- 318 ft
- 11 main spans
- Daily traffic
- 300
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Avenue 18.5 over Eastside Bypass Channel is a concrete continuous slab carrying Avenue 18.5 over Eastside Bypass Channel in Madera County, California. It was built in 1965, so it is 60 years old, older 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 3 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. Its operating status is: closed to all traffic.
It carries about 300 vehicles a day, roughly 12% of them trucks, projected to reach 655 by 2041. The structure is 318 ft (96.9 m) long and 31 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Avenue 18.5 over Eastside Bypass Channel built?
It was built in 1965, making it 60 years old in 2025.
What condition is Avenue 18.5 over Eastside Bypass Channel 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 March 2023.
How much traffic does Avenue 18.5 over Eastside Bypass Channel carry?
About 300 vehicles per day (2020 count), of which roughly 12% are trucks.
How long is Avenue 18.5 over Eastside Bypass Channel?
The structure is 318 ft (96.9 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.
Who owns Avenue 18.5 over Eastside Bypass Channel?
It is owned by the County Highway Agency.