US Bridges

ST107 Salem Tpk over Water Pines River

Fair

Suffolk County, Massachusetts · 1.4 KM NE of RTE 60 · Structure no. R050077L5DOTNBI

Built
2011
14 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
152 ft
3 main spans
Daily traffic
35,302
2019 count
Owner
State
State Highway Agency

About this bridge

ST107 Salem Tpk over Water Pines River is a prestressed concrete box beam or girders - single or spread carrying ST107 Salem Tpk over Water Pines River in Suffolk County, Massachusetts. It was built in 2011, so it is 14 years old, younger 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 35,302 vehicles a day, roughly 10% of them trucks, projected to reach 59,066 by 2032. The structure is 152 ft (46.4 m) long and 88 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesST107 Salem Tpk
CrossesWater Pines River
Location1.4 KM NE of RTE 60
RouteState Highway 107
CountySuffolk County
StateMassachusetts
Coordinates42.43093, -70.99738
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length152 ft (46.4 m)
Longest span58 ft (17.8 m)
Deck width88 ft (26.7 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic35,302 (2019)
Projected traffic59,066 by 2032
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$20.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST107 Salem Tpk over Water Pines River built?

It was built in 2011, making it 14 years old in 2025.

What condition is ST107 Salem Tpk over Water Pines River 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 July 2023.

How much traffic does ST107 Salem Tpk over Water Pines River carry?

About 35,302 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is ST107 Salem Tpk over Water Pines River?

The structure is 152 ft (46.4 m) long with a longest span of 58 ft (17.8 m) and a deck 88 ft wide.

Who owns ST107 Salem Tpk over Water Pines River?

It is owned by the State Highway Agency.