PERIMETER ROAD
Carrying PERIMETER ROAD over CLOVER CREEK
GRID COORD ET403207, Pierce, Washington
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: PERIMETER ROAD
The PERIMETER ROAD bridge in Pierce, Washington carries PERIMETER ROAD over CLOVER CREEK. It was built in 1958, making it 68 years old today. The structure is built primarily of steel and spans 2 sections, stretching 8.1 meters (27 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Washington bridges. It is owned and maintained by NASA.
The latest FHWA inspection records show culvert at 3/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 97.2 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How PERIMETER ROAD compares
Live comparison across Washington.
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 How the historical reference is calculated.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
- 1958
- Material
- Steel
- Number of Spans
- 2
- Structure Length
- 8.1 m (27 ft)
- Owner
- NASA
- Avg Daily Traffic
- 100 vehicles/day
- Structure Number
- AFWAPQWY00007
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
PERIMETER ROAD 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 PERIMETER ROAD against other structures in Pierce and across Washington. Washington 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 PERIMETER ROAD?
PERIMETER ROAD in Pierce, Washington on the FHWA's 0–9 scale.
How often is PERIMETER ROAD inspected?
PERIMETER ROAD'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 100 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. PERIMETER ROAD 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 PERIMETER ROAD?
PERIMETER ROAD has an NBI inventory load rating of 97.2 metric tons.
Who is responsible for maintaining PERIMETER ROAD?
PERIMETER ROAD is owned and maintained by NASA.
How old is PERIMETER ROAD and does age affect safety?
PERIMETER ROAD was built in 1958, making it 68 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.