Summit Avenue
Carrying Summit Avenue over Ellis & Eastern Railroad
S of 14th Street - SF, Minnehaha, South Dakota
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Summit Avenue
The Summit Avenue bridge in Minnehaha, South Dakota carries Summit Avenue over Ellis & Eastern Railroad. It was built in 2004, making it 22 years old today. The structure is built primarily of steel and spans 1 section, stretching 22.0 meters (72 feet) end to end. Daily traffic averages 2,472 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 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 51.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Summit Avenue 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 How the historical reference is calculated.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
- 2004
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 22.0 m (72 ft)
- Deck Width
- 17.2 m (56 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 2,472 vehicles/day
- Structure Number
- 000000050198212
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether Summit Avenue 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 Summit Avenue against other structures in Minnehaha 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 Summit Avenue?
Summit Avenue in Minnehaha, South Dakota has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is Summit Avenue inspected?
Summit Avenue'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 2,472 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Summit Avenue 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 Summit Avenue?
Summit Avenue has an NBI inventory load rating of 51.3 metric tons.
Who is responsible for maintaining Summit Avenue?
Summit Avenue is owned and maintained by City/Municipal Highway Agency.
How old is Summit Avenue and does age affect safety?
Summit Avenue was built in 2004, making it 22 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.