N. CSWY APPR S.B.
Carrying N. CSWY APPR S.B. over MONROE St
1.4 Mi S of US 190, St. Tammany, Louisiana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: N. CSWY APPR S.B.
The N. CSWY APPR S.B. bridge in St. Tammany, Louisiana carries N. CSWY APPR S.B. over MONROE St. It was built in 1993, making it 33 years old today. The structure is built primarily of concrete continuous and spans 14 sections, stretching 647.4 meters (2124 feet) end to end. Daily traffic averages 1,600 vehicles, placing it in the moderately-trafficked tier of Louisiana bridges. It is owned and maintained by Local Toll Authority.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 29.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How N. CSWY APPR S.B. compares
Live comparison across Louisiana.
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 How the historical reference is calculated.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
- 1993
- Material
- Concrete Continuous
- Number of Spans
- 14
- Structure Length
- 647.4 m (2124 ft)
- Deck Width
- 9.4 m (31 ft)
- Owner
- Local Toll Authority
- Avg Daily Traffic
- 1,600 vehicles/day
- Structure Number
- 625230222900562
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether N. CSWY APPR S.B. 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 N. CSWY APPR S.B. against other structures in St. Tammany and across Louisiana. Louisiana 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 N. CSWY APPR S.B.?
N. CSWY APPR S.B. in St. Tammany, Louisiana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is N. CSWY APPR S.B. inspected?
N. CSWY APPR S.B.'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 1,600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N. CSWY APPR S.B. is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for N. CSWY APPR S.B.?
N. CSWY APPR S.B. has an NBI inventory load rating of 29.5 metric tons.
Who is responsible for maintaining N. CSWY APPR S.B.?
N. CSWY APPR S.B. is owned and maintained by Local Toll Authority.
How old is N. CSWY APPR S.B. and does age affect safety?
N. CSWY APPR S.B. was built in 1993, making it 33 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.
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.