US183 BYPASS
Carrying US183 BYPASS over RS1977, UP RR, OLD US40
2.84 MI NW JCT U183/U183Y, Ellis, Kansas
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: US183 BYPASS
The US183 BYPASS bridge in Ellis, Kansas carries US183 BYPASS over RS1977, UP RR, OLD US40. It was built in 1966, making it 60 years old today. It was last reconstructed in 1997, extending its service life. The structure is built primarily of steel continuous and spans 9 sections, stretching 166.2 meters (545 feet) end to end. Daily traffic averages 3,580 vehicles, placing it in the moderately-trafficked tier of Kansas bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 43.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How US183 BYPASS compares
Live comparison across Kansas.
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 How the historical reference is calculated.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
- 1966
- Last Reconstructed
- 1997
- Material
- Steel Continuous
- Number of Spans
- 9
- Structure Length
- 166.2 m (545 ft)
- Deck Width
- 14.0 m (46 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 3,580 vehicles/day
- Structure Number
- 9999183Y0260551
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether US183 BYPASS 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 US183 BYPASS against other structures in Ellis and across Kansas. Kansas 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 US183 BYPASS?
US183 BYPASS in Ellis, Kansas has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is US183 BYPASS inspected?
US183 BYPASS'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 3,580 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. US183 BYPASS 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 US183 BYPASS?
US183 BYPASS has an NBI inventory load rating of 43.5 metric tons.
Who is responsible for maintaining US183 BYPASS?
US183 BYPASS is owned and maintained by State Highway Agency.
How old is US183 BYPASS and does age affect safety?
US183 BYPASS was built in 1966, making it 60 years old and last reconstructed in 1997.
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.