STC 4718;SELWAY RD
Carrying STC 4718;SELWAY RD over LOCHSA RIVER(LOWELL BR)
0.1 N. 18.2 E. KOOSKIA, Idaho, Idaho
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STC 4718;SELWAY RD
The STC 4718;SELWAY RD bridge in Idaho, Idaho carries STC 4718;SELWAY RD over LOCHSA RIVER(LOWELL BR). It was built in 1960, making it 66 years old today. The structure is built primarily of steel and spans 5 sections, stretching 96.9 meters (318 feet) end to end. Daily traffic averages 180 vehicles, placing it in the lower-traffic tier of Idaho bridges. It is owned and maintained by Other Local Agencies.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 45.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How STC 4718;SELWAY RD compares
Live comparison across Idaho.
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 How the historical reference is calculated.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
- 1960
- Material
- Steel
- Number of Spans
- 5
- Structure Length
- 96.9 m (318 ft)
- Deck Width
- 9.3 m (31 ft)
- Owner
- Other Local Agencies
- Avg Daily Traffic
- 180 vehicles/day
- Structure Number
- 000000000029285
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether STC 4718;SELWAY RD 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 STC 4718;SELWAY RD against other structures in Idaho and across Idaho. Idaho 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 STC 4718;SELWAY RD?
STC 4718;SELWAY RD in Idaho, Idaho has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is STC 4718;SELWAY RD inspected?
STC 4718;SELWAY RD'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 180 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STC 4718;SELWAY RD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for STC 4718;SELWAY RD?
STC 4718;SELWAY RD has an NBI inventory load rating of 45.4 metric tons.
Who is responsible for maintaining STC 4718;SELWAY RD?
STC 4718;SELWAY RD is owned and maintained by Other Local Agencies.
How old is STC 4718;SELWAY RD and does age affect safety?
STC 4718;SELWAY RD was built in 1960, making it 66 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.