HWY MILL ST
Carrying HWY MILL ST over WATER GREEN RIVER
0.5 MI E INT ST 2A, Franklin, Massachusetts
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
HWY MILL ST in Franklin, Massachusetts sits above 64% of rated Massachusetts bridges on inventory load rating (41 t), while its 1981 build year is earlier than 32% of Franklin's recorded-year cohort (314 bridges).
HWY MILL ST in Franklin, Massachusetts is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1981, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair 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 MA:G120140LMMUNNBI
LATE-CENTURY · STEEL · SINGLE-SPAN · SUB-LED · HEAVY-ADT · HEAVY-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- STEEL Steel
- SINGLE-SPAN Single span
- SUB-LED Substructure-led
- HEAVY-ADT Heavy ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
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: HWY MILL ST
The HWY MILL ST bridge in Franklin, Massachusetts carries HWY MILL ST over WATER GREEN RIVER. It was built in 1981, making it 45 years old today. The structure is built primarily of steel and spans 1 section, stretching 37.7 meters (124 feet) end to end. Daily traffic averages 14,483 vehicles, placing it in the heavily-trafficked tier of Massachusetts 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 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How HWY MILL ST compares
Age against the county: built in 1981, earlier than 101 of Franklin's 314 bridges with a recorded construction year (32%), against a county median build year of 1960. This is one of the newer structures in its county.
Live comparison across Massachusetts bridges with a recorded inventory load rating (5,295 rated).
HWY MILL ST vs every rated Massachusetts bridge
Inventory load rating (metric tons), FHWA NBI, this state
41 Top 36% higher than 64% of 5,295 bridges
rated Massachusetts 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 314 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
- 1981
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 37.7 m (124 ft)
- Deck Width
- 14.8 m (49 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 14,483 vehicles/day
- Structure Number
- G120140LMMUNNBI
Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • At 6/9, 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
This page shows what the last federal inspection recorded, not whether HWY MILL ST 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 HWY MILL ST against other structures in Franklin and across Massachusetts. Massachusetts 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 HWY MILL ST?
HWY MILL ST in Franklin, Massachusetts has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is HWY MILL ST inspected?
HWY MILL ST'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 14,483 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HWY MILL ST is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for HWY MILL ST?
HWY MILL ST has an NBI inventory load rating of 41.4 metric tons.
Who is responsible for maintaining HWY MILL ST?
HWY MILL ST is owned and maintained by Town/Township Highway Agency.
How old is HWY MILL ST and does age affect safety?
HWY MILL ST was built in 1981, making it 45 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.