INTERSTATE 205
Carrying INTERSTATE 205 over DELTA-MENDOTA CANAL
10-SJ-205-0.15, San Joaquin, California
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
INTERSTATE 205 in San Joaquin, California sits above 13% of rated California bridges on inventory load rating (22 t), while its 1953 build year is earlier than 85% of San Joaquin's recorded-year cohort (644 bridges).
INTERSTATE 205 in San Joaquin, California is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1953, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair 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:29 0037
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · TIED-CTRL · HEAVY-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
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: INTERSTATE 205
The INTERSTATE 205 bridge in San Joaquin, California carries INTERSTATE 205 over DELTA-MENDOTA CANAL. It was built in 1953, making it 73 years old today. It was last reconstructed in 1998, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 47.8 meters (157 feet) end to end. Daily traffic averages 106,000 vehicles, placing it in the heavily-trafficked tier of California bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How INTERSTATE 205 compares
Age against the county: built in 1953, earlier than 546 of San Joaquin's 644 bridges with a recorded construction year (85%), against a county median build year of 1970. 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).
INTERSTATE 205 vs every rated California bridge
Inventory load rating (metric tons), FHWA NBI, this state
22 Top 87% higher than 13% 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.
San Joaquin inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 644 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
- 1953
- Last Reconstructed
- 1998
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 47.8 m (157 ft)
- Deck Width
- 35.3 m (116 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 106,000 vehicles/day
- Structure Number
- 29 0037
Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • 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
This page shows what the last federal inspection recorded, not whether INTERSTATE 205 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 INTERSTATE 205 against other structures in San Joaquin 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 INTERSTATE 205?
INTERSTATE 205 in San Joaquin, California has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is INTERSTATE 205 inspected?
INTERSTATE 205'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 106,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. INTERSTATE 205 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 INTERSTATE 205?
INTERSTATE 205 has an NBI inventory load rating of 22.0 metric tons.
Who is responsible for maintaining INTERSTATE 205?
INTERSTATE 205 is owned and maintained by State Highway Agency.
How old is INTERSTATE 205 and does age affect safety?
INTERSTATE 205 was built in 1953, making it 73 years old and last reconstructed in 1998.
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.
Share this inspection record
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.