FHWA NBI 2024 Inspection record Public-domain dataset

456TH AVE

Carrying 456TH AVE over ELCE CK

3.7N & 3E PARKER, Turner, South Dakota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor

Bridge Snapshot: 456TH AVE

The 456TH AVE bridge in Turner, South Dakota carries 456TH AVE over ELCE CK. It was built in 1934, making it 92 years old today. The structure is built primarily of masonry and spans 2 sections, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 35 vehicles, placing it in the lower-traffic tier of South Dakota bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 1/9. The weakest component sits in critical 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.

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

How 456TH AVE compares

143
Bridges in Turner · 37 in Poor condition

Live comparison across South Dakota.

Historical Sufficiency Rating

PlainBridge-computed
41.0 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
26.0
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 How the historical reference is calculated.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

Culvert
1/9
Poor (1–4)
Overall Condition
Poor

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

Structural Details

Year Built
1934
Material
Masonry
Number of Spans
2
Structure Length
7.3 m (24 ft)
Owner
County Highway Agency
Avg Daily Traffic
35 vehicles/day
Structure Number
000000063160033

How to read this record

456TH 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 456TH AVE against other structures in Turner and across South Dakota. South Dakota 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 456TH AVE?

456TH AVE in Turner, South Dakota on the FHWA's 0–9 scale.

How often is 456TH AVE inspected?

456TH 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 35 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 456TH 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 456TH AVE?

An inventory load rating is not recorded for 456TH AVE.

Who is responsible for maintaining 456TH AVE?

456TH AVE is owned and maintained by County Highway Agency.

How old is 456TH AVE and does age affect safety?

456TH AVE was built in 1934, making it 92 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.