RP IS55S TO IS255S
Carrying RP IS55S TO IS255S over RP IS270W TO IS55N
S 34 T 44 N R 6 E, St. Louis, Missouri
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: RP IS55S TO IS255S
The RP IS55S TO IS255S bridge in St. Louis, Missouri carries RP IS55S TO IS255S over RP IS270W TO IS55N. It was built in 1991, making it 35 years old today. The structure is built primarily of steel continuous. Daily traffic averages 13,579 vehicles, placing it in the heavily-trafficked tier of Missouri bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. None of this bridge's reported major components fall into the Poor condition range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How RP IS55S TO IS255S compares
Live comparison across Missouri.
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 How the historical reference is calculated.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
- 1991
- Material
- Steel Continuous
- Avg Daily Traffic
- 13,579 vehicles/day
- Structure Number
- 3975
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 RP IS55S TO IS255S 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 RP IS55S TO IS255S against other structures in St. Louis and across Missouri. Missouri 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 RP IS55S TO IS255S?
RP IS55S TO IS255S in St. Louis, Missouri on the FHWA's 0–9 scale.
How often is RP IS55S TO IS255S inspected?
RP IS55S TO IS255S'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 13,579 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. RP IS55S TO IS255S is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for RP IS55S TO IS255S?
An inventory load rating is not recorded for RP IS55S TO IS255S.
Who is responsible for maintaining RP IS55S TO IS255S?
Ownership is not specified for RP IS55S TO IS255S in the NBI.
How old is RP IS55S TO IS255S and does age affect safety?
RP IS55S TO IS255S was built in 1991, making it 35 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.