MILL PLAIN ROAD
Carrying MILL PLAIN ROAD over MILL RIVER
2.0 MI N OF I-95, Fairfield, Connecticut
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: MILL PLAIN ROAD
The MILL PLAIN ROAD bridge in Fairfield, Connecticut carries MILL PLAIN ROAD over MILL RIVER. It was built in 2011, making it 15 years old today. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 39.8 meters (131 feet) end to end. Daily traffic averages 8,800 vehicles, placing it in the moderately-trafficked tier of Connecticut bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 45.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How MILL PLAIN ROAD compares
Live comparison across Connecticut.
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 How the historical reference is calculated.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
- 2011
- Material
- Prestressed Concrete
- Number of Spans
- 2
- Structure Length
- 39.8 m (131 ft)
- Deck Width
- 13.6 m (45 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 8,800 vehicles/day
- Structure Number
- 04204
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether MILL PLAIN ROAD 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 MILL PLAIN ROAD against other structures in Fairfield and across Connecticut. Connecticut 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 MILL PLAIN ROAD?
MILL PLAIN ROAD in Fairfield, Connecticut has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is MILL PLAIN ROAD inspected?
MILL PLAIN 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 8,800 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MILL PLAIN ROAD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for MILL PLAIN ROAD?
MILL PLAIN ROAD has an NBI inventory load rating of 45.3 metric tons.
Who is responsible for maintaining MILL PLAIN ROAD?
MILL PLAIN ROAD is owned and maintained by Town/Township Highway Agency.
How old is MILL PLAIN ROAD and does age affect safety?
MILL PLAIN ROAD was built in 2011, making it 15 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.