CRYSTAL SPRGS CAMP
Carrying CRYSTAL SPRGS CAMP over WEST FORK CARSON RIVER
0.1 MILE SOUTH OF S.H. 88, Alpine, California
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
CRYSTAL SPRGS CAMP in Alpine, California sits above 16% of rated California bridges on inventory load rating (24 t), while its 1938 build year is earlier than 84% of Alpine's recorded-year cohort (32 bridges).
CRYSTAL SPRGS CAMP in Alpine, California is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1938, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure CA:31C0013
PRE-1950 · STEEL · SINGLE-SPAN · DECK-LED · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- STEEL Steel
- SINGLE-SPAN Single span
- DECK-LED Deck-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: CRYSTAL SPRGS CAMP
The CRYSTAL SPRGS CAMP bridge in Alpine, California carries CRYSTAL SPRGS CAMP over WEST FORK CARSON RIVER. It was built in 1938, making it 88 years old today. The structure is built primarily of steel and spans 1 section, stretching 16.8 meters (55 feet) end to end. Daily traffic averages 275 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order.
How CRYSTAL SPRGS CAMP compares
Age against the county: built in 1938, earlier than 27 of Alpine's 32 bridges with a recorded construction year (84%), against a county median build year of 1960. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across California bridges with a recorded inventory load rating (25,538 of 25,848 rated).
CRYSTAL SPRGS CAMP vs every rated California bridge
Inventory load rating (metric tons), FHWA NBI, this state
24 Top 84% higher than 16% of 25,538 bridges
rated California bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Alpine inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 32 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1938
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 16.8 m (55 ft)
- Deck Width
- 7.7 m (25 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 275 vehicles/day
- Structure Number
- 31C0013
Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear on file for this vintage.
- • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
CRYSTAL SPRGS CAMP is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare CRYSTAL SPRGS CAMP against other structures in Alpine 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 CRYSTAL SPRGS CAMP?
CRYSTAL SPRGS CAMP in Alpine, California has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is CRYSTAL SPRGS CAMP inspected?
CRYSTAL SPRGS CAMP'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 275 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CRYSTAL SPRGS CAMP is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for CRYSTAL SPRGS CAMP?
CRYSTAL SPRGS CAMP has an NBI inventory load rating of 24.0 metric tons.
Who is responsible for maintaining CRYSTAL SPRGS CAMP?
CRYSTAL SPRGS CAMP is owned and maintained by County Highway Agency.
How old is CRYSTAL SPRGS CAMP and does age affect safety?
CRYSTAL SPRGS CAMP was built in 1938, making it 88 years old.
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.
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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.