FHWA NBI 2024 Inspection record Public-domain dataset

275 STREET

Carrying 275 STREET over WEST BRANCH BULL CK

15.1E 3N WINNER, Tripp, South Dakota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
19 t Inventory load rating

Bridge Snapshot: 275 STREET

The 275 STREET bridge in Tripp, South Dakota carries 275 STREET over WEST BRANCH BULL CK. It was built in 2003, making it 23 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 12.2 meters (40 feet) end to end. Daily traffic averages 50 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 7/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 19.1 metric tons.

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

How 275 STREET compares

▼ 13.4
Load rating vs South Dakota average (32.5 t)
Bottom 16%
Lower load rating than 84% of South Dakota bridges
90
Bridges in Tripp · 25 in Poor condition
275 STREET 19.1 t
South Dakota average 32.5 t

Live comparison across South Dakota.

Historical Sufficiency Rating

PlainBridge-computed
81.2 / 100 - historical 80–100 band
Structural adequacy /55
39.2
Serviceability /30
29.0
Essentiality /15
15.0
Special reductions
−2.0

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 How the historical reference is calculated.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
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
19.1 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2003
Material
Prestressed Concrete
Number of Spans
1
Structure Length
12.2 m (40 ft)
Deck Width
9.3 m (31 ft)
Owner
County Highway Agency
Avg Daily Traffic
50 vehicles/day
Structure Number
000000062351250

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 8/9, 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 (8/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether 275 STREET 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 275 STREET against other structures in Tripp 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 275 STREET?

275 STREET in Tripp, South Dakota has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is 275 STREET inspected?

275 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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 275 STREET 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 275 STREET?

275 STREET has an NBI inventory load rating of 19.1 metric tons.

Who is responsible for maintaining 275 STREET?

275 STREET is owned and maintained by County Highway Agency.

How old is 275 STREET and does age affect safety?

275 STREET was built in 2003, making it 23 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.