FHWA NBI 2024 Inspection record Public-domain dataset

I 91 & NASHS MILL

Carrying I 91 & NASHS MILL over WATER NASHS MILL BROOK

MM 44.6 ON I-91, Franklin, Massachusetts

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
70 t Inventory load rating

Bridge Snapshot: I 91 & NASHS MILL

The I 91 & NASHS MILL bridge in Franklin, Massachusetts carries I 91 & NASHS MILL over WATER NASHS MILL BROOK. It was built in 1962, making it 64 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 8.7 meters (29 feet) end to end. Daily traffic averages 36,983 vehicles, placing it in the heavily-trafficked tier of Massachusetts bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 69.5 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How I 91 & NASHS MILL compares

▲ 28.3
Load rating vs Massachusetts average (41.2 t)
Top 7%
Higher load rating than 93% of Massachusetts bridges
314
Bridges in Franklin · 35 in Poor condition
I 91 & NASHS MILL 69.5 t
Massachusetts average 41.2 t

Live comparison across Massachusetts.

Historical Sufficiency Rating

PlainBridge-computed
75.8 / 100 - historical 50–79.9 band
Structural adequacy /55
55.0
Serviceability /30
15.0
Essentiality /15
8.8
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
69.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1962
Material
Concrete Continuous
Number of Spans
2
Structure Length
8.7 m (29 ft)
Owner
State Highway Agency
Avg Daily Traffic
36,983 vehicles/day
Structure Number
G120500XPDOTNBI

How to read this record

This page shows what the last federal inspection recorded, not whether I 91 & NASHS MILL 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 I 91 & NASHS MILL 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 I 91 & NASHS MILL?

I 91 & NASHS MILL in Franklin, Massachusetts on the FHWA's 0–9 scale.

How often is I 91 & NASHS MILL inspected?

I 91 & NASHS MILL'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 36,983 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. I 91 & NASHS MILL 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 I 91 & NASHS MILL?

I 91 & NASHS MILL has an NBI inventory load rating of 69.5 metric tons.

Who is responsible for maintaining I 91 & NASHS MILL?

I 91 & NASHS MILL is owned and maintained by State Highway Agency.

How old is I 91 & NASHS MILL and does age affect safety?

I 91 & NASHS MILL was built in 1962, making it 64 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.