W 84TH ST S
Carrying W 84TH ST S over RED ROCK CREEK
079203304, Jasper, Iowa
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: W 84TH ST S
The W 84TH ST S bridge in Jasper, Iowa carries W 84TH ST S over RED ROCK CREEK. It was built in 1947, making it 79 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 6.4 meters (21 feet) end to end. Daily traffic averages 11 vehicles, placing it in the lower-traffic tier of Iowa bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 0/9, superstructure at 0/9, substructure at 0/9. The weakest component sits in critical condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How W 84TH ST S 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 How the historical reference is calculated.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
- 1947
- Material
- Wood or Timber
- Number of Spans
- 1
- Structure Length
- 6.4 m (21 ft)
- Deck Width
- 5.5 m (18 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 11 vehicles/day
- Structure Number
- 000000000197270
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 0/9, the deck (driving surface) is in critical shape, with severe wear requiring urgent action.
- • At 0/9, the superstructure (beams and supports above the deck) is in critical shape, with severe wear requiring urgent action.
- • The substructure (piers and abutments) rates critical at 0/9, severe deterioration that needs urgent attention.
How to read this record
W 84TH ST S 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 W 84TH ST S against other structures in Jasper 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 W 84TH ST S?
W 84TH ST S in Jasper, Iowa has a deck rating of 0/9, superstructure rating of 0/9, and substructure rating of 0/9 on the FHWA's 0–9 scale.
How often is W 84TH ST S inspected?
W 84TH ST S'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 11 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. W 84TH ST S 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 W 84TH ST S?
An inventory load rating is not recorded for W 84TH ST S.
Who is responsible for maintaining W 84TH ST S?
W 84TH ST S is owned and maintained by County Highway Agency.
How old is W 84TH ST S and does age affect safety?
W 84TH ST S was built in 1947, making it 79 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.