SRT ML & SH 121 FR
Carrying SRT ML & SH 121 FR over DRAIN
1.15 MI SW OF DALLAS PKWY, Collin, Texas
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SRT ML & SH 121 FR
The SRT ML & SH 121 FR bridge in Collin, Texas carries SRT ML & SH 121 FR over DRAIN. It was built in 2007, making it 19 years old today. It was last reconstructed in 2015, extending its service life. The structure is built primarily of concrete and spans 4 sections, stretching 9.8 meters (32 feet) end to end. Daily traffic averages 204,044 vehicles, placing it in the heavily-trafficked tier of Texas bridges. It is owned and maintained by Local Toll Authority.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 32.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SRT ML & SH 121 FR 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 How the historical reference is calculated.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
- 2007
- Last Reconstructed
- 2015
- Material
- Concrete
- Number of Spans
- 4
- Structure Length
- 9.8 m (32 ft)
- Deck Width
- 160.9 m (528 ft)
- Owner
- Local Toll Authority
- Avg Daily Traffic
- 204,044 vehicles/day
- Structure Number
- 180430036404177
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 SRT ML & SH 121 FR 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 SRT ML & SH 121 FR against other structures in Collin 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 SRT ML & SH 121 FR?
SRT ML & SH 121 FR in Collin, Texas on the FHWA's 0–9 scale.
How often is SRT ML & SH 121 FR inspected?
SRT ML & SH 121 FR'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 204,044 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SRT ML & SH 121 FR 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 SRT ML & SH 121 FR?
SRT ML & SH 121 FR has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining SRT ML & SH 121 FR?
SRT ML & SH 121 FR is owned and maintained by Local Toll Authority.
How old is SRT ML & SH 121 FR and does age affect safety?
SRT ML & SH 121 FR was built in 2007, making it 19 years old and last reconstructed in 2015.
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.