US Bridges

ST 57 WB over ST159 Main ST

Poor

Hampden County, Massachusetts · 4.75 MI E of Southwick · Structure no. A05017AJUDOTNBI

Built
2002
23 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
168 ft
2 main spans
Daily traffic
16,427
2016 count
Owner
State
State Highway Agency

About this bridge

ST 57 WB over ST159 Main ST is a steel continuous stringer/multi-beam or girder carrying ST 57 WB over ST159 Main ST in Hampden County, Massachusetts. It was built in 2002, so it is 23 years old, younger 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. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 16,427 vehicles a day, roughly 4% of them trucks, projected to reach 65,857 by 2031. The structure is 168 ft (51.2 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesST 57 WB
CrossesST159 Main ST
Location4.75 MI E of Southwick
RouteState Highway 57
Coordinates42.0758, -72.61459
Functional classUrban Principal Arterial - Other Freeway or Expressway

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.6 US tons
Inventory rating47.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span84 ft (25.5 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,427 (2016)
Projected traffic65,857 by 2031
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$7.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 57 WB over ST159 Main ST built?

It was built in 2002, making it 23 years old in 2025.

What condition is ST 57 WB over ST159 Main ST 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 April 2024.

How much traffic does ST 57 WB over ST159 Main ST carry?

About 16,427 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is ST 57 WB over ST159 Main ST?

The structure is 168 ft (51.2 m) long with a longest span of 84 ft (25.5 m) and a deck 48 ft wide.

Who owns ST 57 WB over ST159 Main ST?

It is owned by the State Highway Agency.