700 S. DAKOTA AVE.
Carrying 700 S. DAKOTA AVE. over VERMILLION RV
1.0S CNT VERMILLION, Clay, South Dakota
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 700 S. DAKOTA AVE.
The 700 S. DAKOTA AVE. bridge in Clay, South Dakota carries 700 S. DAKOTA AVE. over VERMILLION RV. It was built in 1975, making it 51 years old today. The structure is built primarily of prestressed concrete continuous and spans 2 sections, stretching 88.4 meters (290 feet) end to end. Daily traffic averages 550 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 a deck rating of 6/9, superstructure at 6/9, substructure at 4/9. 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. Its NBI inventory load rating is 81.6 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 700 S. DAKOTA AVE. compares
Live comparison across South Dakota.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1975
- Material
- Prestressed Concrete Continuous
- Number of Spans
- 2
- Structure Length
- 88.4 m (290 ft)
- Deck Width
- 10.0 m (33 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 550 vehicles/day
- Structure Number
- 000000014117214
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.
How to read this record
700 S. DAKOTA 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 700 S. DAKOTA AVE. against other structures in Clay 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 700 S. DAKOTA AVE.?
700 S. DAKOTA AVE. in Clay, South Dakota has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is 700 S. DAKOTA AVE. inspected?
700 S. DAKOTA 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 550 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 700 S. DAKOTA 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 700 S. DAKOTA AVE.?
700 S. DAKOTA AVE. has an NBI inventory load rating of 81.6 metric tons.
Who is responsible for maintaining 700 S. DAKOTA AVE.?
700 S. DAKOTA AVE. is owned and maintained by County Highway Agency.
How old is 700 S. DAKOTA AVE. and does age affect safety?
700 S. DAKOTA AVE. was built in 1975, making it 51 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.
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.