STC 5711;MOON PASS
Carrying STC 5711;MOON PASS over BIG DICK CREEK
5.6 N. 2.5 E. AVERY, Shoshone, Idaho
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STC 5711;MOON PASS
The STC 5711;MOON PASS bridge in Shoshone, Idaho carries STC 5711;MOON PASS over BIG DICK CREEK. It was built in 1909, making it 117 years old today. It was last reconstructed in 1989, extending its service life. The structure is built primarily of steel and spans 4 sections, stretching 72.8 meters (239 feet) end to end. Daily traffic averages 360 vehicles, placing it in the lower-traffic tier of Idaho bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 5/9, substructure at 3/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 68.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How STC 5711;MOON PASS 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 How the historical reference is calculated.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
- 1909
- Last Reconstructed
- 1989
- Material
- Steel
- Number of Spans
- 4
- Structure Length
- 72.8 m (239 ft)
- Deck Width
- 5.6 m (18 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 360 vehicles/day
- Structure Number
- 000000000020404
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.
- • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) is in poor condition (3/9), showing advanced deterioration that may require priority repair.
How to read this record
STC 5711;MOON PASS 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 STC 5711;MOON PASS against other structures in Shoshone 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 5711;MOON PASS?
STC 5711;MOON PASS in Shoshone, Idaho has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.
How often is STC 5711;MOON PASS inspected?
STC 5711;MOON PASS'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 360 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STC 5711;MOON PASS 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 STC 5711;MOON PASS?
STC 5711;MOON PASS has an NBI inventory load rating of 68.9 metric tons.
Who is responsible for maintaining STC 5711;MOON PASS?
STC 5711;MOON PASS is owned and maintained by County Highway Agency.
How old is STC 5711;MOON PASS and does age affect safety?
STC 5711;MOON PASS was built in 1909, making it 117 years old and last reconstructed in 1989.
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.