US Bridges

ST 32 Main ST over Water Conant Brook

Fair

Hampden County, Massachusetts · Near Jct. Maple Street · Structure no. M270231A1DOTNBI

Built
1956
69 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
13,706
2024 count
Owner
State
State Highway Agency

About this bridge

ST 32 Main ST over Water Conant Brook is a prestressed concrete slab carrying ST 32 Main ST over Water Conant Brook in Hampden County, Massachusetts. It was built in 1956, so it is 69 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 13,706 vehicles a day, roughly 9% of them trucks, projected to reach 6,001 by 2031. The structure is 42 ft (12.8 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesST 32 Main ST
CrossesWater Conant Brook
LocationNear Jct. Maple Street
RouteState Highway 32
CountyHampden County
StateMassachusetts
Coordinates42.08485, -72.31044
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating51.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width52 ft (15.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,706 (2024)
Projected traffic6,001 by 2031
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$184,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 32 Main ST over Water Conant Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is ST 32 Main ST over Water Conant 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 2024.

How much traffic does ST 32 Main ST over Water Conant Brook carry?

About 13,706 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is ST 32 Main ST over Water Conant Brook?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 52 ft wide.

Who owns ST 32 Main ST over Water Conant Brook?

It is owned by the State Highway Agency.