US Bridges

ST 27 High Pln ST over I 95 NB

Fair

Norfolk County, Massachusetts · ST 27 at I 95 NB · Structure no. S090073VQDOTNBI

Built
1963
62 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
173 ft
3 main spans
Daily traffic
8,689
2022 count
Owner
State
State Highway Agency

About this bridge

ST 27 High Pln ST over I 95 NB is a steel stringer/multi-beam or girder carrying ST 27 High Pln ST over I 95 NB in Norfolk County, Massachusetts. It was built in 1963, so it is 62 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.

It carries about 8,689 vehicles a day, roughly 6% of them trucks, projected to reach 13,898 by 2032. The structure is 173 ft (52.7 m) long and 49 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesST 27 High Pln ST
CrossesI 95 NB
LocationST 27 at I 95 NB
RouteState Highway 27
CountyNorfolk County
StateMassachusetts
Coordinates42.1399, -71.21231
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length173 ft (52.7 m)
Longest span90 ft (27.4 m)
Deck width49 ft (14.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,689 (2022)
Projected traffic13,898 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 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$7.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 27 High Pln ST over I 95 NB built?

It was built in 1963, making it 62 years old in 2025.

What condition is ST 27 High Pln ST over I 95 NB 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 March 2023.

How much traffic does ST 27 High Pln ST over I 95 NB carry?

About 8,689 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is ST 27 High Pln ST over I 95 NB?

The structure is 173 ft (52.7 m) long with a longest span of 90 ft (27.4 m) and a deck 49 ft wide.

Who owns ST 27 High Pln ST over I 95 NB?

It is owned by the State Highway Agency.