SR 23/SR 933 NB
Carrying SR 23/SR 933 NB over SR 933 NB/LINCOLN WAY
03.81 NE US 20, St. Joseph, Indiana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SR 23/SR 933 NB in St. Joseph, Indiana is rated Poor in the FHWA's 2024 National Bridge Inventory.
Built in 1962, 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 IN:005820
INTERSTATE-ERA · STEEL · SINGLE-SPAN · SUPER-LED · HEAVY-ADT · STANDARD-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- SINGLE-SPAN Single span
- SUPER-LED Superstructure-led
- HEAVY-ADT Heavy 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: SR 23/SR 933 NB
The SR 23/SR 933 NB bridge in St. Joseph, Indiana carries SR 23/SR 933 NB over SR 933 NB/LINCOLN WAY. It was built in 1962, making it 64 years old today. It was last reconstructed in 1994, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 45.1 meters (148 feet) end to end. Daily traffic averages 17,461 vehicles, placing it in the heavily-trafficked tier of Indiana bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
How SR 23/SR 933 NB compares
Age against the county: built in 1962, earlier than 152 of St. Joseph's 227 bridges with a recorded construction year (67%), against a county median build year of 1988. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Indiana bridges with a recorded inventory load rating (19,495 rated).
SR 23/SR 933 NB vs every rated Indiana bridge
Inventory load rating (metric tons), FHWA NBI, this state
36 Top 36% higher than 64% of 19,495 bridges
rated Indiana 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.
St. Joseph inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 227 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
- 1962
- Last Reconstructed
- 1994
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 45.1 m (148 ft)
- Deck Width
- 35.5 m (116 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 17,461 vehicles/day
- Structure Number
- 005820
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 poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
- • At 6/9, 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
SR 23/SR 933 NB 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 SR 23/SR 933 NB against other structures in St. Joseph and across Indiana. Indiana 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 SR 23/SR 933 NB?
SR 23/SR 933 NB in St. Joseph, Indiana has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is SR 23/SR 933 NB inspected?
SR 23/SR 933 NB'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 17,461 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SR 23/SR 933 NB 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 SR 23/SR 933 NB?
SR 23/SR 933 NB has an NBI inventory load rating of 36.3 metric tons.
Who is responsible for maintaining SR 23/SR 933 NB?
SR 23/SR 933 NB is owned and maintained by State Highway Agency.
How old is SR 23/SR 933 NB and does age affect safety?
SR 23/SR 933 NB was built in 1962, making it 64 years old and last reconstructed in 1994.
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.