US Bridges

ST 66 Main RD over Water Sodom Brook

FairPosted for load

Hampshire County, Massachusetts · .1 MI E of JCT South RD · Structure no. W2701011PDOTNBI

Built
1946
79 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
45 ft
3 main spans
Daily traffic
2,500
2019 count
Owner
State
State Highway Agency

About this bridge

ST 66 Main RD over Water Sodom Brook is a concrete continuous slab carrying ST 66 Main RD over Water Sodom Brook in Hampshire County, Massachusetts. It was built in 1946, so it is 79 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2,500 vehicles a day, roughly 6% of them trucks, projected to reach 4,422 by 2032. The structure is 45 ft (13.7 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesST 66 Main RD
CrossesWater Sodom Brook
Location.1 MI E of JCT South RD
RouteState Highway 66
CountyHampshire County
StateMassachusetts
Coordinates42.28598, -72.77244
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.4 US tons
Inventory rating17.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length45 ft (13.7 m)
Longest span17 ft (5.2 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2019)
Projected traffic4,422 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 66 Main RD over Water Sodom Brook built?

It was built in 1946, making it 79 years old in 2025.

What condition is ST 66 Main RD over Water Sodom Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does ST 66 Main RD over Water Sodom Brook carry?

About 2,500 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is ST 66 Main RD over Water Sodom Brook?

The structure is 45 ft (13.7 m) long with a longest span of 17 ft (5.2 m) and a deck 35 ft wide.

Who owns ST 66 Main RD over Water Sodom Brook?

It is owned by the State Highway Agency.