US Bridges

HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp

FairPosted for load

Suffolk County, Massachusetts · Storrow Drive · Structure no. B163654FLDOTNBI

Built
1965
60 years old, rebuilt 2009
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
420 ft
6 main spans
Daily traffic
10,925
2022 count
Owner
State
State Highway Agency

About this bridge

HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp is a steel stringer/multi-beam or girder carrying HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp in Suffolk County, Massachusetts. It was built in 1965 and reconstructed in 2009, so it is 60 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. Its operating status is: posted for load restriction.

It carries about 10,925 vehicles a day, projected to reach 26,374 by 2032. The structure is 420 ft (128 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesHWY Strw WB Onrp
CrossesHWY Strrw DR WB & Ofrp
LocationStorrow Drive
RouteU.S. Route 1
CountySuffolk County
StateMassachusetts
Coordinates42.3514, -71.09299
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating40.8 US tons
Inventory rating24.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length420 ft (128 m)
Longest span70 ft (21.3 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,925 (2022)
Projected traffic26,374 by 2032
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$11.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2009.

What condition is HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp 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 July 2023.

How much traffic does HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp carry?

About 10,925 vehicles per day (2022 count).

How long is HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp?

The structure is 420 ft (128 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.

Who owns HWY Strw WB Onrp over HWY Strrw DR WB & Ofrp?

It is owned by the State Highway Agency.