US Bridges

HWY Forest ST over ST128

Fair

Essex County, Massachusetts · 0.5 MI S of Lowell Street · Structure no. P0304531UDOTNBI

Built
1988
37 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
229 ft
2 main spans
Daily traffic
15,500
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Forest ST over ST128 is a prestressed concrete stringer/multi-beam or girder carrying HWY Forest ST over ST128 in Essex County, Massachusetts. It was built in 1988, so it is 37 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 5 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 15,500 vehicles a day, roughly 10% of them trucks, projected to reach 23,690 by 2031. The structure is 229 ft (69.8 m) long and 91 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesHWY Forest ST
CrossesST128
Location0.5 MI S of Lowell Street
RouteState Highway 0
CountyEssex County
StateMassachusetts
Coordinates42.52698, -70.95672
Functional classUrban Local

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.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating64 US tons
Inventory rating43.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length229 ft (69.8 m)
Longest span113 ft (34.4 m)
Deck width91 ft (27.7 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,500 (2024)
Projected traffic23,690 by 2031
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$18.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Forest ST over ST128 built?

It was built in 1988, making it 37 years old in 2025.

What condition is HWY Forest ST over ST128 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 December 2024.

How much traffic does HWY Forest ST over ST128 carry?

About 15,500 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is HWY Forest ST over ST128?

The structure is 229 ft (69.8 m) long with a longest span of 113 ft (34.4 m) and a deck 91 ft wide.

Who owns HWY Forest ST over ST128?

It is owned by the State Highway Agency.