SL 573 NB
Carrying SL 573 NB over LITTLE TARKINGTON BAYOU
1.1 MI NE OF FM 2025, Liberty, Texas
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SL 573 NB
The SL 573 NB bridge in Liberty, Texas carries SL 573 NB over LITTLE TARKINGTON BAYOU. It was built in 1925, making it 101 years old today. It was last reconstructed in 1946, extending its service life. The structure is built primarily of concrete and spans 9 sections, stretching 24.7 meters (81 feet) end to end. Daily traffic averages 2,937 vehicles, placing it in the moderately-trafficked tier of Texas bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 21.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SL 573 NB compares
Live comparison across Texas.
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 How the historical reference is calculated.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
- 1925
- Last Reconstructed
- 1946
- Material
- Concrete
- Number of Spans
- 9
- Structure Length
- 24.7 m (81 ft)
- Deck Width
- 14.0 m (46 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,937 vehicles/day
- Structure Number
- 201460017704017
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 SL 573 NB 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 SL 573 NB against other structures in Liberty and across Texas. Texas 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 SL 573 NB?
SL 573 NB in Liberty, Texas on the FHWA's 0–9 scale.
How often is SL 573 NB inspected?
SL 573 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 2,937 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SL 573 NB 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 SL 573 NB?
SL 573 NB has an NBI inventory load rating of 21.8 metric tons.
Who is responsible for maintaining SL 573 NB?
SL 573 NB is owned and maintained by State Highway Agency.
How old is SL 573 NB and does age affect safety?
SL 573 NB was built in 1925, making it 101 years old and last reconstructed in 1946.
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.