US Bridges

ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg

FairPosted for load

Middlesex County, Massachusetts · .1 MI S of Longfellow Br · Structure no. C010454DKDOTNBI

Built
1957
68 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
68 ft
1 main span
Daily traffic
28,450
2023 count
Owner
State
State Highway Agency

About this bridge

ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg is a steel stringer/multi-beam or girder carrying ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg in Middlesex County, Massachusetts. It was built in 1957, so it is 68 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. Its operating status is: posted for other load-capacity restriction.

It carries about 28,450 vehicles a day, projected to reach 78,175 by 2032. The structure is 68 ft (20.7 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesST 3 Nb/Memorl DR
CrossesST 3 SB to Longfllw Brg
Location.1 MI S of Longfellow Br
RouteState Highway 3
CountyMiddlesex County
StateMassachusetts
Coordinates42.3609, -71.08167
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity 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 rating51.5 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length68 ft (20.7 m)
Longest span58 ft (17.7 m)
Deck width45 ft (13.6 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,450 (2023)
Projected traffic78,175 by 2032
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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$2.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg built?

It was built in 1957, making it 68 years old in 2025.

What condition is ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg 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 September 2023.

How much traffic does ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg carry?

About 28,450 vehicles per day (2023 count).

How long is ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg?

The structure is 68 ft (20.7 m) long with a longest span of 58 ft (17.7 m) and a deck 45 ft wide.

Who owns ST 3 Nb/Memorl DR over ST 3 SB to Longfllw Brg?

It is owned by the State Highway Agency.