HWY 147
Carrying HWY 147 over FLOOD CREEK
095171501, Floyd, Iowa
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: HWY 147
The HWY 147 bridge in Floyd, Iowa carries HWY 147 over FLOOD CREEK. It was built in 1930, making it 96 years old today. It was last reconstructed in 1967, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 28.0 meters (92 feet) end to end. Daily traffic averages 668 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 3/9, superstructure at 3/9, substructure at 4/9. 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 31.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How HWY 147 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 How the historical reference is calculated.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
- 1930
- Last Reconstructed
- 1967
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 28.0 m (92 ft)
- Deck Width
- 11.0 m (36 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 668 vehicles/day
- Structure Number
- 000000000025070
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 3/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • The superstructure (beams and supports above the deck) is in poor condition (3/9), showing advanced deterioration that may require priority repair.
- • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
How to read this record
HWY 147 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 HWY 147 against other structures in Floyd 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 HWY 147?
HWY 147 in Floyd, Iowa has a deck rating of 3/9, superstructure rating of 3/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is HWY 147 inspected?
HWY 147'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 668 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY 147 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 HWY 147?
HWY 147 has an NBI inventory load rating of 31.7 metric tons.
Who is responsible for maintaining HWY 147?
HWY 147 is owned and maintained by County Highway Agency.
How old is HWY 147 and does age affect safety?
HWY 147 was built in 1930, making it 96 years old and last reconstructed in 1967.
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.