US Bridges

ST 28 N Main ST over RR Mbta/Bmrr

Fair

Essex County, Massachusetts · .4 MI N Andover Center · Structure no. A09011331DOT634

Built
1929
96 years old, rebuilt 2018
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
22,800
2018 count
Owner
State
State Highway Agency

About this bridge

ST 28 N Main ST over RR Mbta/Bmrr is a steel stringer/multi-beam or girder carrying ST 28 N Main ST over RR Mbta/Bmrr in Essex County, Massachusetts. It was built in 1929 and reconstructed in 2018, so it is 96 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 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 22,800 vehicles a day, roughly 5% of them trucks, projected to reach 35,692 by 2032. The structure is 83 ft (25.4 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST 28 N Main ST
CrossesRR Mbta/Bmrr
Location.4 MI N Andover Center
RouteState Highway 28
CountyEssex County
StateMassachusetts
Coordinates42.66092, -71.14373
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating103.6 US tons
Inventory rating78.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length83 ft (25.4 m)
Longest span80 ft (24.3 m)
Deck width60 ft (18.2 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,800 (2018)
Projected traffic35,692 by 2032
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 28 N Main ST over RR Mbta/Bmrr built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 2018.

What condition is ST 28 N Main ST over RR Mbta/Bmrr 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 August 2023.

How much traffic does ST 28 N Main ST over RR Mbta/Bmrr carry?

About 22,800 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is ST 28 N Main ST over RR Mbta/Bmrr?

The structure is 83 ft (25.4 m) long with a longest span of 80 ft (24.3 m) and a deck 60 ft wide.

Who owns ST 28 N Main ST over RR Mbta/Bmrr?

It is owned by the State Highway Agency.