W 23RD STREET
Carrying W 23RD STREET over MARNE CREEK
W 23RD STREET - YANKTON, Yankton, South Dakota
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
W 23RD STREET in Yankton, South Dakota sits above 12% of rated South Dakota bridges on inventory load rating (16 t), while its 1976 build year is earlier than 61% of Yankton's recorded-year cohort (99 bridges).
W 23RD STREET in Yankton, South Dakota is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1976, it carries 3 rated components 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 SD:000000068119190
INTERSTATE-ERA · PRESTRESS · SINGLE-SPAN · TIED-CTRL · ARTERIAL-ADT · LIGHT-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- ARTERIAL-ADT Arterial 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: W 23RD STREET
The W 23RD STREET bridge in Yankton, South Dakota carries W 23RD STREET over MARNE CREEK. It was built in 1976, making it 50 years old today. It was last reconstructed in 2001, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 12.3 meters (40 feet) end to end. Daily traffic averages 3,980 vehicles, placing it in the moderately-trafficked tier of South Dakota bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
How W 23RD STREET compares
Age against the county: built in 1976, earlier than 60 of Yankton's 99 bridges with a recorded construction year (61%), against a county median build year of 1989. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across South Dakota bridges with a recorded inventory load rating (5,886 of 5,887 rated).
W 23RD STREET vs every rated South Dakota bridge
Inventory load rating (metric tons), FHWA NBI, this state
16 Top 88% higher than 12% of 5,886 bridges
rated South Dakota 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
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Yankton inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 99 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
- 1976
- Last Reconstructed
- 2001
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 12.3 m (40 ft)
- Deck Width
- 13.0 m (43 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 3,980 vehicles/day
- Structure Number
- 000000068119190
Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear on file for this vintage.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
- • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
W 23RD STREET 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 W 23RD STREET against other structures in Yankton 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 W 23RD STREET?
W 23RD STREET in Yankton, South Dakota has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is W 23RD STREET inspected?
W 23RD STREET'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 3,980 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. W 23RD STREET 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 W 23RD STREET?
W 23RD STREET has an NBI inventory load rating of 16.1 metric tons.
Who is responsible for maintaining W 23RD STREET?
W 23RD STREET is owned and maintained by City/Municipal Highway Agency.
How old is W 23RD STREET and does age affect safety?
W 23RD STREET was built in 1976, making it 50 years old and last reconstructed in 2001.
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.
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.
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.