US Bridges

ST 28 Main ST over Water Martins Brook

Fair

Middlesex County, Massachusetts · 0.2 MI Sly Rt 62 · Structure no. N180102L1DOTNBI

Built
1903
122 years old, rebuilt 1992
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
21 ft
1 main span
Daily traffic
31,080
2019 count
Owner
State
State Highway Agency

About this bridge

ST 28 Main ST over Water Martins Brook is a concrete arch - deck carrying ST 28 Main ST over Water Martins Brook in Middlesex County, Massachusetts. It was built in 1903 and reconstructed in 1992, 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 31,080 vehicles a day, roughly 6% of them trucks, projected to reach 46,747 by 2032. The structure is 21 ft (6.4 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST 28 Main ST
CrossesWater Martins Brook
Location0.2 MI Sly Rt 62
RouteState Highway 28
CountyMiddlesex County
StateMassachusetts
Coordinates42.57496, -71.11068
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.
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.2 US tons
Inventory rating33.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1 (+2 approach)
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width66 ft (20.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,080 (2019)
Projected traffic46,747 by 2032
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 28 Main ST over Water Martins Brook built?

It was built in 1903, making it 122 years old in 2025. It was reconstructed in 1992.

What condition is ST 28 Main ST over Water Martins Brook 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 April 2023.

How much traffic does ST 28 Main ST over Water Martins Brook carry?

About 31,080 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is ST 28 Main ST over Water Martins Brook?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 66 ft wide.

Who owns ST 28 Main ST over Water Martins Brook?

It is owned by the State Highway Agency.