FHWA NBI 2024 Inspection record Public-domain dataset

E46 245TH ST

Carrying E46 245TH ST over SOLDIER RIVER

083421707, Monona, Iowa

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
48 t Inventory load rating

Bridge Snapshot: E46 245TH ST

The E46 245TH ST bridge in Monona, Iowa carries E46 245TH ST over SOLDIER RIVER. It was built in 2020, making it 6 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 62.2 meters (204 feet) end to end. Daily traffic averages 60 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 9/9, superstructure at 9/9, substructure at 9/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 47.6 metric tons.

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

How E46 245TH ST compares

▲ 16.7
Load rating vs Iowa average (30.9 t)
Top 8%
Higher load rating than 92% of Iowa bridges
125
Bridges in Monona · 35 in Poor condition
E46 245TH ST 47.6 t
Iowa average 30.9 t

Live comparison across Iowa.

Historical Sufficiency Rating

PlainBridge-computed
98.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
28.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
9/9
Good (7–9)
Superstructure
9/9
Good (7–9)
Substructure
9/9
Good (7–9)
Inventory Load Rating
47.6 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2020
Material
Prestressed Concrete
Number of Spans
3
Structure Length
62.2 m (204 ft)
Deck Width
8.3 m (27 ft)
Owner
County Highway Agency
Avg Daily Traffic
60 vehicles/day
Structure Number
000000000249831

Condition Analysis

  • At 9/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 9/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) is in good condition (9/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether E46 245TH ST 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 E46 245TH ST against other structures in Monona 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 E46 245TH ST?

E46 245TH ST in Monona, Iowa has a deck rating of 9/9, superstructure rating of 9/9, and substructure rating of 9/9 on the FHWA's 0–9 scale.

How often is E46 245TH ST inspected?

E46 245TH ST'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 60 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. E46 245TH ST 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 E46 245TH ST?

E46 245TH ST has an NBI inventory load rating of 47.6 metric tons.

Who is responsible for maintaining E46 245TH ST?

E46 245TH ST is owned and maintained by County Highway Agency.

How old is E46 245TH ST and does age affect safety?

E46 245TH ST was built in 2020, making it 6 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.