E120-N99 N99-W120 over State Route 99
PoorSan Joaquin County, California · 10-SJ-120-6.86 · Structure no. 29 0286E
- Built
- 1980
- 45 years old
- Condition
- Poor
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 177 ft
- 2 main spans
- Daily traffic
- 26,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
E120-N99 N99-W120 over State Route 99 is a concrete continuous box beam or girders - multiple carrying E120-N99 N99-W120 over State Route 99 in San Joaquin County, California. It was built in 1980, so it is 45 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 26,000 vehicles a day, roughly 18% of them trucks, projected to reach 41,023 by 2045. The structure is 177 ft (54 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was E120-N99 N99-W120 over State Route 99 built?
It was built in 1980, making it 45 years old in 2025.
What condition is E120-N99 N99-W120 over State Route 99 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 May 2023.
How much traffic does E120-N99 N99-W120 over State Route 99 carry?
About 26,000 vehicles per day (2009 count), of which roughly 18% are trucks.
How long is E120-N99 N99-W120 over State Route 99?
The structure is 177 ft (54 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.
Who owns E120-N99 N99-W120 over State Route 99?
It is owned by the State Highway Agency.