I129/US275
Carrying I129/US275 over CRYSTAL LAKE
I129/US77 INTERCHG 1E, Dakota, Nebraska
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: I129/US275
The I129/US275 bridge in Dakota, Nebraska carries I129/US275 over CRYSTAL LAKE. It was built in 1977, making it 49 years old today. It was last reconstructed in 2021, extending its service life. The structure is built primarily of prestressed concrete and spans 10 sections, stretching 211.2 meters (693 feet) end to end. Daily traffic averages 14,995 vehicles, placing it in the heavily-trafficked tier of Nebraska bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 8/9, superstructure at 7/9, substructure 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 32.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How I129/US275 compares
Live comparison across Nebraska.
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 How the historical reference is calculated.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
- 1977
- Last Reconstructed
- 2021
- Material
- Prestressed Concrete
- Number of Spans
- 10
- Structure Length
- 211.2 m (693 ft)
- Deck Width
- 12.9 m (42 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 14,995 vehicles/day
- Structure Number
- S129 00107R
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 8/9, 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) rates good at 7/9, with no significant deterioration on file.
How to read this record
This page shows what the last federal inspection recorded, not whether I129/US275 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 I129/US275 against other structures in Dakota and across Nebraska. Nebraska 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 I129/US275?
I129/US275 in Dakota, Nebraska has a deck rating of 8/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is I129/US275 inspected?
I129/US275'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 14,995 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I129/US275 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 I129/US275?
I129/US275 has an NBI inventory load rating of 32.0 metric tons.
Who is responsible for maintaining I129/US275?
I129/US275 is owned and maintained by State Highway Agency.
How old is I129/US275 and does age affect safety?
I129/US275 was built in 1977, making it 49 years old and last reconstructed in 2021.
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.