12TH STREET,S.W.
Carrying 12TH STREET,S.W. over CSXT RAILROAD
12th St over CSXT RR,SW, District of Columbia, District of Columbia
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 12TH STREET,S.W.
The 12TH STREET,S.W. bridge in District of Columbia, District of Columbia carries 12TH STREET,S.W. over CSXT RAILROAD. It was built in 1907, making it 119 years old today. It was last reconstructed in 1987, extending its service life. The structure is built primarily of steel continuous and spans 2 sections, stretching 28.3 meters (93 feet) end to end. Daily traffic averages 16,900 vehicles, placing it in the heavily-trafficked tier of District of Columbia bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure 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 55.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 12TH STREET,S.W. compares
Live comparison across District of Columbia.
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 How the historical reference is calculated.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
- 1907
- Last Reconstructed
- 1987
- Material
- Steel Continuous
- Number of Spans
- 2
- Structure Length
- 28.3 m (93 ft)
- Deck Width
- 22.7 m (74 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 16,900 vehicles/day
- Structure Number
- 0515
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.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether 12TH STREET,S.W. 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 12TH STREET,S.W. against other structures in District of Columbia and across District of Columbia. District of Columbia 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 12TH STREET,S.W.?
12TH STREET,S.W. in District of Columbia, District of Columbia has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is 12TH STREET,S.W. inspected?
12TH STREET,S.W.'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 16,900 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 12TH STREET,S.W. 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 12TH STREET,S.W.?
12TH STREET,S.W. has an NBI inventory load rating of 55.3 metric tons.
Who is responsible for maintaining 12TH STREET,S.W.?
12TH STREET,S.W. is owned and maintained by State Highway Agency.
How old is 12TH STREET,S.W. and does age affect safety?
12TH STREET,S.W. was built in 1907, making it 119 years old and last reconstructed in 1987.
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.