US Bridges

ST 4 Great RD over Water Shawsheen River

Fair

Middlesex County, Massachusetts · 1.25 MI NW Rt 128 & Bdfrd · Structure no. B040012K5DOTNBI

Built
1903
122 years old, rebuilt 2020
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
37,000
2020 count
Owner
State
State Highway Agency

About this bridge

ST 4 Great RD over Water Shawsheen River is a concrete slab carrying ST 4 Great RD over Water Shawsheen River in Middlesex County, Massachusetts. It was built in 1903 and reconstructed in 2020, so it is 122 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 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 37,000 vehicles a day, roughly 10% of them trucks, projected to reach 67,436 by 2031. The structure is 34 ft (10.4 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST 4 Great RD
CrossesWater Shawsheen River
Location1.25 MI NW Rt 128 & Bdfrd
RouteState Highway 225
CountyMiddlesex County
StateMassachusetts
Coordinates42.48627, -71.26173
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.2 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span29 ft (8.8 m)
Deck width47 ft (14.3 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,000 (2020)
Projected traffic67,436 by 2031
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 4 Great RD over Water Shawsheen River built?

It was built in 1903, making it 122 years old in 2025. It was reconstructed in 2020.

What condition is ST 4 Great RD over Water Shawsheen 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 November 2024.

How much traffic does ST 4 Great RD over Water Shawsheen River carry?

About 37,000 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is ST 4 Great RD over Water Shawsheen River?

The structure is 34 ft (10.4 m) long with a longest span of 29 ft (8.8 m) and a deck 47 ft wide.

Who owns ST 4 Great RD over Water Shawsheen River?

It is owned by the State Highway Agency.