LASSEN PARK ROAD
Carrying LASSEN PARK ROAD over WEST FORK SULPHUR CREEK
2 miles north of South En, Shasta, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: LASSEN PARK ROAD
The LASSEN PARK ROAD bridge in Shasta, California carries LASSEN PARK ROAD over WEST FORK SULPHUR CREEK. It was built in 1964, making it 62 years old today. It was last reconstructed in 1975, extending its service life. The structure is built primarily of steel continuous and spans 2 sections, stretching 65.2 meters (214 feet) end to end. Daily traffic averages 300 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 61.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How LASSEN PARK ROAD compares
Live comparison across California.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1964
- Last Reconstructed
- 1975
- Material
- Steel Continuous
- Number of Spans
- 2
- Structure Length
- 65.2 m (214 ft)
- Deck Width
- 10.1 m (33 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 300 vehicles/day
- Structure Number
- 8400001P0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether LASSEN PARK ROAD is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare LASSEN PARK ROAD against other structures in Shasta and across California. California bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for LASSEN PARK ROAD?
LASSEN PARK ROAD in Shasta, California has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is LASSEN PARK ROAD inspected?
LASSEN PARK ROAD's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 300 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LASSEN PARK ROAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for LASSEN PARK ROAD?
LASSEN PARK ROAD has an NBI inventory load rating of 61.7 metric tons.
Who is responsible for maintaining LASSEN PARK ROAD?
LASSEN PARK ROAD is owned and maintained by National Park Service.
How old is LASSEN PARK ROAD and does age affect safety?
LASSEN PARK ROAD was built in 1964, making it 62 years old and last reconstructed in 1975.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.