SD 248 EF
Carrying SD 248 EF over CK
0.1 N JCT I90, Lyman, South Dakota
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: SD 248 EF
The SD 248 EF bridge in Lyman, South Dakota carries SD 248 EF over CK. It was built in 1947, making it 79 years old today. It was last reconstructed in 1972, extending its service life. The structure is built primarily of concrete continuous and spans 2 sections, stretching 6.3 meters (21 feet) end to end. Daily traffic averages 2,265 vehicles, placing it in the moderately-trafficked tier of South Dakota bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 20.2 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How SD 248 EF compares
Live comparison across South Dakota.
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 How the historical reference is calculated.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
- 1947
- Last Reconstructed
- 1972
- Material
- Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 6.3 m (21 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,265 vehicles/day
- Structure Number
- 000000043160204
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 SD 248 EF 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 SD 248 EF against other structures in Lyman and across South Dakota. South Dakota 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 SD 248 EF?
SD 248 EF in Lyman, South Dakota on the FHWA's 0–9 scale.
How often is SD 248 EF inspected?
SD 248 EF'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 2,265 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SD 248 EF 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 SD 248 EF?
SD 248 EF has an NBI inventory load rating of 20.2 metric tons.
Who is responsible for maintaining SD 248 EF?
SD 248 EF is owned and maintained by State Highway Agency.
How old is SD 248 EF and does age affect safety?
SD 248 EF was built in 1947, making it 79 years old and last reconstructed in 1972.
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.