FOUR MILE SQUARE R
Carrying FOUR MILE SQUARE R over HILTON BROOK
200 FT N JCT RTE 234, Somerset, Maine
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: FOUR MILE SQUARE R
The FOUR MILE SQUARE R bridge in Somerset, Maine carries FOUR MILE SQUARE R over HILTON BROOK. It was built in 1998, making it 28 years old today. The structure is built primarily of steel and spans 1 section, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 67 vehicles, placing it in the lower-traffic tier of Maine bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 53.1 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How FOUR MILE SQUARE R compares
Live comparison across Maine.
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 How the historical reference is calculated.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
- 1998
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 7.9 m (26 ft)
- Deck Width
- 6.6 m (22 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 67 vehicles/day
- Structure Number
- 1056
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
FOUR MILE SQUARE R 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 FOUR MILE SQUARE R against other structures in Somerset and across Maine. Maine 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 FOUR MILE SQUARE R?
FOUR MILE SQUARE R in Somerset, Maine has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is FOUR MILE SQUARE R inspected?
FOUR MILE SQUARE R'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 67 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FOUR MILE SQUARE R 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 FOUR MILE SQUARE R?
FOUR MILE SQUARE R has an NBI inventory load rating of 53.1 metric tons.
Who is responsible for maintaining FOUR MILE SQUARE R?
FOUR MILE SQUARE R is owned and maintained by State Highway Agency.
How old is FOUR MILE SQUARE R and does age affect safety?
FOUR MILE SQUARE R was built in 1998, making it 28 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.