US Bridges

HWY Forest ST over Water Salisbury Plain R

Good

Plymouth County, Massachusetts · .1 MI South of Perkins ST · Structure no. B25003ALDMUNNBI

Built
1999
26 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
714
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Forest ST over Water Salisbury Plain R is a prestressed concrete box beam or girders - multiple carrying HWY Forest ST over Water Salisbury Plain R in Plymouth County, Massachusetts. It was built in 1999, so it is 26 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 714 vehicles a day, roughly 70% of them trucks, projected to reach 3,159 by 2032. The structure is 47 ft (14.2 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Forest ST
CrossesWater Salisbury Plain R
Location.1 MI South of Perkins ST
RouteCity Street 0
Coordinates42.06268, -71.01028
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating99.2 US tons
Inventory rating86.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length47 ft (14.2 m)
Longest span32 ft (9.7 m)
Deck width39 ft (12 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic714 (2023)
Projected traffic3,159 by 2032
Trucks70%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Forest ST over Water Salisbury Plain R built?

It was built in 1999, making it 26 years old in 2025.

What condition is HWY Forest ST over Water Salisbury Plain R in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does HWY Forest ST over Water Salisbury Plain R carry?

About 714 vehicles per day (2023 count), of which roughly 70% are trucks.

How long is HWY Forest ST over Water Salisbury Plain R?

The structure is 47 ft (14.2 m) long with a longest span of 32 ft (9.7 m) and a deck 39 ft wide.

Who owns HWY Forest ST over Water Salisbury Plain R?

It is owned by the City or Municipal Highway Agency.