State Route 99 over Nielsen Houghton Canal
GoodFresno County, California · 06-FRE-099-22.13-FRE · Structure no. 42 0188
- Built
- 1956
- 69 years old, rebuilt 1995
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 212 ft
- 4 main spans
- Daily traffic
- 85,000
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Nielsen Houghton Canal is a steel stringer/multi-beam or girder carrying State Route 99 over Nielsen Houghton Canal in Fresno County, California. It was built in 1956 and reconstructed in 1995, so it is 69 years old, older 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 85,000 vehicles a day, roughly 17% of them trucks, projected to reach 121,000 by 2040. The structure is 212 ft (64.6 m) long and 133 ft wide. If it were closed, the detour would be 1.2 mi (2 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. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 99 over Nielsen Houghton Canal built?
It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1995.
What condition is State Route 99 over Nielsen Houghton Canal 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 November 2023.
How much traffic does State Route 99 over Nielsen Houghton Canal carry?
About 85,000 vehicles per day (2015 count), of which roughly 17% are trucks.
How long is State Route 99 over Nielsen Houghton Canal?
The structure is 212 ft (64.6 m) long with a longest span of 88 ft (26.8 m) and a deck 133 ft wide.
Who owns State Route 99 over Nielsen Houghton Canal?
It is owned by the State Highway Agency.