LOCAL RD
Carrying LOCAL RD over FOUR MILE CREEK
080231800, Polk, Iowa
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
LOCAL RD in Polk, Iowa sits above 70% of rated Iowa bridges on inventory load rating (34 t), while its 1991 build year is earlier than 54% of Polk's recorded-year cohort (545 bridges).
LOCAL RD in Polk, Iowa is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1991, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure IA:000000000281862
LATE-CENTURY · PRESTRESS · MULTI-SPAN · TIED-CTRL · ARTERIAL-ADT · STANDARD-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- PRESTRESS Prestressed concrete
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: LOCAL RD
The LOCAL RD bridge in Polk, Iowa carries LOCAL RD over FOUR MILE CREEK. It was built in 1991, making it 35 years old today. It was last reconstructed in 2020, extending its service life. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 46.9 meters (154 feet) end to end. Daily traffic averages 7,530 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 7/9, superstructure at 8/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How LOCAL RD compares
Age against the county: built in 1991, earlier than 293 of Polk's 545 bridges with a recorded construction year (54%), against a county median build year of 1994. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Iowa bridges with a recorded inventory load rating (23,718 of 23,719 rated).
LOCAL RD vs every rated Iowa bridge
Inventory load rating (metric tons), FHWA NBI, this state
34 Top 30% higher than 70% of 23,718 bridges
rated Iowa bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Polk inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 545 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1991
- Last Reconstructed
- 2020
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 46.9 m (154 ft)
- Deck Width
- 22.3 m (73 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 7,530 vehicles/day
- Structure Number
- 000000000281862
Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (8/9), showing no significant deterioration.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
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 LOCAL RD 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 LOCAL RD 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 LOCAL RD?
LOCAL RD in Polk, Iowa has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is LOCAL RD inspected?
LOCAL RD'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 7,530 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LOCAL RD 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 LOCAL RD?
LOCAL RD has an NBI inventory load rating of 34.3 metric tons.
Who is responsible for maintaining LOCAL RD?
LOCAL RD is owned and maintained by City/Municipal Highway Agency.
How old is LOCAL RD and does age affect safety?
LOCAL RD was built in 1991, making it 35 years old and last reconstructed in 2020.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.