US Bridges

HWY Morrssey Blv over Water Pattens Cove

Fair

Suffolk County, Massachusetts · .48 KM W of U of Mass · Structure no. B164594FADOTNBI

Built
1973
52 years old, rebuilt 2010
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
54,957
2025 count
Owner
State
State Highway Agency

About this bridge

HWY Morrssey Blv over Water Pattens Cove is a steel stringer/multi-beam or girder carrying HWY Morrssey Blv over Water Pattens Cove in Suffolk County, Massachusetts. It was built in 1973 and reconstructed in 2010, so it is 52 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 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 54,957 vehicles a day, roughly 6% of them trucks, projected to reach 85,282 by 2032. The structure is 31 ft (9.3 m) long and 156 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Morrssey Blv
CrossesWater Pattens Cove
Location.48 KM W of U of Mass
RouteState Highway 1A
CountySuffolk County
StateMassachusetts
Coordinates42.31296, -71.04652
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.3 m)
Longest span28 ft (8.4 m)
Deck width156 ft (47.5 m)
Roadway width104 ft (31.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54,957 (2025)
Projected traffic85,282 by 2032
Trucks6%
Lanes on structure7
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$329,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Morrssey Blv over Water Pattens Cove built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2010.

What condition is HWY Morrssey Blv over Water Pattens Cove 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 January 2025.

How much traffic does HWY Morrssey Blv over Water Pattens Cove carry?

About 54,957 vehicles per day (2025 count), of which roughly 6% are trucks.

How long is HWY Morrssey Blv over Water Pattens Cove?

The structure is 31 ft (9.3 m) long with a longest span of 28 ft (8.4 m) and a deck 156 ft wide.

Who owns HWY Morrssey Blv over Water Pattens Cove?

It is owned by the State Highway Agency.