E AVE NORTHWEST
Carrying E AVE NORTHWEST over CEDAR RIVER
000000000, Linn, Iowa
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: E AVE NORTHWEST
The E AVE NORTHWEST bridge in Linn, Iowa carries E AVE NORTHWEST over CEDAR RIVER. It was built in 1979, making it 47 years old today. The structure is built primarily of prestressed concrete and spans 10 sections, stretching 208.8 meters (685 feet) end to end. Daily traffic averages 3,447 vehicles, placing it in the moderately-trafficked tier of Iowa bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 24.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How E AVE NORTHWEST compares
Live comparison across Iowa.
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 How the historical reference is calculated.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
- 1979
- Material
- Prestressed Concrete
- Number of Spans
- 10
- Structure Length
- 208.8 m (685 ft)
- Deck Width
- 15.1 m (50 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 3,447 vehicles/day
- Structure Number
- 000000000605720
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
E AVE NORTHWEST is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare E AVE NORTHWEST against other structures in Linn and across Iowa. Iowa 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 E AVE NORTHWEST?
E AVE NORTHWEST in Linn, Iowa has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is E AVE NORTHWEST inspected?
E AVE NORTHWEST'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 3,447 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. E AVE NORTHWEST is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for E AVE NORTHWEST?
E AVE NORTHWEST has an NBI inventory load rating of 24.4 metric tons.
Who is responsible for maintaining E AVE NORTHWEST?
E AVE NORTHWEST is owned and maintained by City/Municipal Highway Agency.
How old is E AVE NORTHWEST and does age affect safety?
E AVE NORTHWEST was built in 1979, making it 47 years old.
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.