US Bridges

HWY Main ST Leed over Water S Channel Mill Riv

Poor

Hampshire County, Massachusetts · 200 N of Arch ST · Structure no. N190460MKMUNNBI

Built
1850
175 years old
Condition
Poor
inspected September 2024
Type
Arch - Deck
Masonry
Length
62 ft
2 main spans
Daily traffic
2,008
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Main ST Leed over Water S Channel Mill Riv is a masonry arch - deck carrying HWY Main ST Leed over Water S Channel Mill Riv in Hampshire County, Massachusetts. It was built in 1850, so it is 175 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,008 vehicles a day, roughly 7% of them trucks, projected to reach 2,710 by 2031. The structure is 62 ft (18.9 m) long and 21 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Main ST Leed
CrossesWater S Channel Mill Riv
Location200 N of Arch ST
RouteCity Street 0
Coordinates42.34876, -72.70046
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating110 US tons
Inventory rating109.9 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span26 ft (7.9 m)
Deck width21 ft (6.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,008 (2005)
Projected traffic2,710 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Main ST Leed over Water S Channel Mill Riv built?

It was built in 1850, making it 175 years old in 2025.

What condition is HWY Main ST Leed over Water S Channel Mill Riv in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does HWY Main ST Leed over Water S Channel Mill Riv carry?

About 2,008 vehicles per day (2005 count), of which roughly 7% are trucks.

How long is HWY Main ST Leed over Water S Channel Mill Riv?

The structure is 62 ft (18.9 m) long with a longest span of 26 ft (7.9 m) and a deck 21 ft wide.

Who owns HWY Main ST Leed over Water S Channel Mill Riv?

It is owned by the City or Municipal Highway Agency.