FHWA NBI 2024 Inspection record Public-domain dataset

NETTLE AVE

Carrying NETTLE AVE over BUFFALO CREEK

092200502, Franklin, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
27 t Inventory load rating

Bridge Snapshot: NETTLE AVE

The NETTLE AVE bridge in Franklin, Iowa carries NETTLE AVE over BUFFALO CREEK. It was built in 1983, making it 43 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 23.5 meters (77 feet) end to end. Daily traffic averages 20 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 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 26.5 metric tons.

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

How NETTLE AVE compares

▼ 4.4
Load rating vs Iowa average (30.9 t)
Bottom 37%
Lower load rating than 63% of Iowa bridges
214
Bridges in Franklin · 29 in Poor condition
NETTLE AVE 26.5 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
92.3 / 100 - historical 80–100 band
Structural adequacy /55
50.3
Serviceability /30
30.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
26.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1983
Material
Concrete Continuous
Number of Spans
3
Structure Length
23.5 m (77 ft)
Deck Width
9.1 m (30 ft)
Owner
County Highway Agency
Avg Daily Traffic
20 vehicles/day
Structure Number
000000000157491

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether NETTLE AVE 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 NETTLE AVE against other structures in Franklin 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 NETTLE AVE?

NETTLE AVE in Franklin, Iowa has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is NETTLE AVE inspected?

NETTLE 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 20 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. NETTLE AVE is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for NETTLE AVE?

NETTLE AVE has an NBI inventory load rating of 26.5 metric tons.

Who is responsible for maintaining NETTLE AVE?

NETTLE AVE is owned and maintained by County Highway Agency.

How old is NETTLE AVE and does age affect safety?

NETTLE AVE was built in 1983, making it 43 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.