FHWA NBI 2024 Inspection record Public-domain dataset

WELLMAN RD

Carrying WELLMAN RD over TRIB TO SPRING CREEK

87-11-10-01-10, Black Hawk, Iowa

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
18 t Inventory load rating Lower than 84% of rated Iowa bridges

WELLMAN RD in Black Hawk, Iowa sits above 16% of rated Iowa bridges on inventory load rating (18 t), while its 1968 build year is earlier than 78% of Black Hawk's recorded-year cohort (489 bridges).

WELLMAN RD in Black Hawk, Iowa is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1968, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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:000000000073750

INTERSTATE-ERA · STEEL · MULTI-SPAN · CULVERT-LED · TRACE-ADT · LIGHT-LOAD · CAT-POOR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • MULTI-SPAN 2 spans
  • CULVERT-LED Culvert-led
  • TRACE-ADT Trace ADT
  • LIGHT-LOAD Light load
  • CAT-POOR Poor

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: WELLMAN RD

The WELLMAN RD bridge in Black Hawk, Iowa carries WELLMAN RD over TRIB TO SPRING CREEK. It was built in 1968, making it 58 years old today. The structure is built primarily of steel and spans 2 sections, stretching 11.6 meters (38 feet) end to end. Daily traffic averages 15 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 culvert 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.

How WELLMAN RD compares

▼ 12.3
Load rating vs Iowa average (30.4 t; 23,718 of 23,719 rated)
489
Bridges in Black Hawk · 32 in Poor condition

Age against the county: built in 1968, earlier than 382 of Black Hawk's 489 bridges with a recorded construction year (78%), against a county median build year of 1986. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

WELLMAN RD 18.1 t
Iowa average (23,718 of 23,719 rated) 30.4 t

Live comparison across Iowa bridges with a recorded inventory load rating (23,718 of 23,719 rated).

WELLMAN RD vs every rated Iowa bridge

Inventory load rating (metric tons), FHWA NBI, this state

18 Top 84% higher than 16% 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

Culvert
4/9
Poor (1–4)
Inventory Load Rating
18.1 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Black Hawk inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 489 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
1968
Material
Steel
Number of Spans
2
Structure Length
11.6 m (38 ft)
0
Owner
County Highway Agency
Avg Daily Traffic
15 vehicles/day
Structure Number
000000000073750

How to read this record

WELLMAN RD 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 WELLMAN RD against other structures in Black Hawk 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 WELLMAN RD?

WELLMAN RD in Black Hawk, Iowa on the FHWA's 0–9 scale.

How often is WELLMAN RD inspected?

WELLMAN 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 15 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. WELLMAN RD 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 WELLMAN RD?

WELLMAN RD has an NBI inventory load rating of 18.1 metric tons.

Who is responsible for maintaining WELLMAN RD?

WELLMAN RD is owned and maintained by County Highway Agency.

How old is WELLMAN RD and does age affect safety?

WELLMAN RD was built in 1968, making it 58 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.

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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.