FHWA NBI 2024 Inspection record Public-domain dataset

PRIMROSE AVE

Carrying PRIMROSE AVE over LITTLE CEDAR RIVER

099161604, Mitchell, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor

Bridge Snapshot: PRIMROSE AVE

The PRIMROSE AVE bridge in Mitchell, Iowa carries PRIMROSE AVE over LITTLE CEDAR RIVER. It was built in 1908, making it 118 years old today. The structure is built primarily of steel and spans 1 section, stretching 23.5 meters (77 feet) end to end. Daily traffic averages 33 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 5/9, superstructure at 3/9, substructure at 5/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How PRIMROSE AVE compares

160
Bridges in Mitchell · 15 in Poor condition

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
20.9 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
6.0
Essentiality /15
14.9
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
5/9
Fair (5–6)
Superstructure
3/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Overall Condition
Poor

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

Structural Details

Year Built
1908
Material
Steel
Number of Spans
1
Structure Length
23.5 m (77 ft)
Deck Width
4.9 m (16 ft)
Owner
County Highway Agency
Avg Daily Traffic
33 vehicles/day
Structure Number
000000000361770

Condition Analysis

  • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) is in poor condition (3/9), showing advanced deterioration that may require priority repair.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

PRIMROSE AVE 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 PRIMROSE AVE against other structures in Mitchell 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 PRIMROSE AVE?

PRIMROSE AVE in Mitchell, Iowa has a deck rating of 5/9, superstructure rating of 3/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is PRIMROSE AVE inspected?

PRIMROSE AVE'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 33 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. PRIMROSE AVE 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 PRIMROSE AVE?

An inventory load rating is not recorded for PRIMROSE AVE.

Who is responsible for maintaining PRIMROSE AVE?

PRIMROSE AVE is owned and maintained by County Highway Agency.

How old is PRIMROSE AVE and does age affect safety?

PRIMROSE AVE was built in 1908, making it 118 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

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.