GRAND AVENUE
Carrying GRAND AVENUE over MLK PKWY
078240800, Polk, Iowa
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: GRAND AVENUE
The GRAND AVENUE bridge in Polk, Iowa carries GRAND AVENUE over MLK PKWY. It was built in 2004, making it 22 years old today. The structure is built primarily of concrete. Daily traffic averages 18,400 vehicles, placing it in the heavily-trafficked tier of Iowa bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How GRAND AVENUE 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 How the historical reference is calculated.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
- 2004
- Material
- Concrete
- Avg Daily Traffic
- 18,400 vehicles/day
- Structure Number
- 000000000504635
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 GRAND AVENUE 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 GRAND AVENUE against other structures in Polk 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 GRAND AVENUE?
GRAND AVENUE in Polk, Iowa on the FHWA's 0–9 scale.
How often is GRAND AVENUE inspected?
GRAND AVENUE'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 18,400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. GRAND AVENUE is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for GRAND AVENUE?
An inventory load rating is not recorded for GRAND AVENUE.
Who is responsible for maintaining GRAND AVENUE?
Ownership is not specified for GRAND AVENUE in the NBI.
How old is GRAND AVENUE and does age affect safety?
GRAND AVENUE was built in 2004, making it 22 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.