STATE ROUTE 242
Carrying STATE ROUTE 242 over CONCORD AVENUE
04-CC-242-R1.47-CND, Contra Costa, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STATE ROUTE 242
The STATE ROUTE 242 bridge in Contra Costa, California carries STATE ROUTE 242 over CONCORD AVENUE. It was built in 1963, making it 63 years old today. It was last reconstructed in 2000, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 48.2 meters (158 feet) end to end. Daily traffic averages 100,000 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 4/9, superstructure at 7/9, substructure at 7/9. 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. Its NBI inventory load rating is 47.1 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How STATE ROUTE 242 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 How the historical reference is calculated.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
- 1963
- Last Reconstructed
- 2000
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 48.2 m (158 ft)
- Deck Width
- 34.4 m (113 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 100,000 vehicles/day
- Structure Number
- 28 0185
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
How to read this record
STATE ROUTE 242 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 STATE ROUTE 242 against other structures in Contra Costa 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 STATE ROUTE 242?
STATE ROUTE 242 in Contra Costa, California has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is STATE ROUTE 242 inspected?
STATE ROUTE 242'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 100,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STATE ROUTE 242 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 STATE ROUTE 242?
STATE ROUTE 242 has an NBI inventory load rating of 47.1 metric tons.
Who is responsible for maintaining STATE ROUTE 242?
STATE ROUTE 242 is owned and maintained by State Highway Agency.
How old is STATE ROUTE 242 and does age affect safety?
STATE ROUTE 242 was built in 1963, making it 63 years old and last reconstructed in 2000.
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.