SR 4006 Stone Br.
Carrying SR 4006 Stone Br. over W BR CONOCOCHEAGUE CREEK
1MI N OF WILLOW HILL, Franklin, Pennsylvania
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SR 4006 Stone Br. in Franklin, Pennsylvania sits above 14% of rated Pennsylvania bridges on inventory load rating (26 t), while its 1907 build year is earlier than 95% of Franklin's recorded-year cohort (294 bridges).
SR 4006 Stone Br. in Franklin, Pennsylvania is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1907, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure PA:000000000017579
PRE-1950 · CONCRETE · MULTI-SPAN · SUPER-LED · LOCAL-ADT · STANDARD-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- SUPER-LED Superstructure-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: SR 4006 Stone Br.
The SR 4006 Stone Br. bridge in Franklin, Pennsylvania carries SR 4006 Stone Br. over W BR CONOCOCHEAGUE CREEK. It was built in 1907, making it 119 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 32.9 meters (108 feet) end to end. Daily traffic averages 475 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 5/9. 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.
How SR 4006 Stone Br. compares
Age against the county: built in 1907, earlier than 278 of Franklin's 294 bridges with a recorded construction year (95%), against a county median build year of 1963. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Pennsylvania bridges with a recorded inventory load rating (23,297 of 23,299 rated).
SR 4006 Stone Br. vs every rated Pennsylvania bridge
Inventory load rating (metric tons), FHWA NBI, this state
26 Top 86% higher than 14% of 23,297 bridges
rated Pennsylvania bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Franklin inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 294 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1907
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 32.9 m (108 ft)
- Deck Width
- 4.5 m (15 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 475 vehicles/day
- Structure Number
- 000000000017579
Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
SR 4006 Stone Br. 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 SR 4006 Stone Br. against other structures in Franklin and across Pennsylvania. Pennsylvania 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 SR 4006 Stone Br.?
SR 4006 Stone Br. in Franklin, Pennsylvania has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is SR 4006 Stone Br. inspected?
SR 4006 Stone Br.'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 475 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SR 4006 Stone Br. 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 SR 4006 Stone Br.?
SR 4006 Stone Br. has an NBI inventory load rating of 26.3 metric tons.
Who is responsible for maintaining SR 4006 Stone Br.?
SR 4006 Stone Br. is owned and maintained by State Highway Agency.
How old is SR 4006 Stone Br. and does age affect safety?
SR 4006 Stone Br. was built in 1907, making it 119 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.