US Bridges

HWY Derby ST over ST 3 Pilgrim HWY

Fair

Plymouth County, Massachusetts · .3 MI E of Weymouth Tl · Structure no. H1501249JDOTNBI

Built
1958
67 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
221 ft
4 main spans
Daily traffic
51,077
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Derby ST over ST 3 Pilgrim HWY is a steel stringer/multi-beam or girder carrying HWY Derby ST over ST 3 Pilgrim HWY in Plymouth County, Massachusetts. It was built in 1958, so it is 67 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 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 51,077 vehicles a day, roughly 5% of them trucks, projected to reach 28,427 by 2032. The structure is 221 ft (67.4 m) long and 54 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHWY Derby ST
CrossesST 3 Pilgrim HWY
Location.3 MI E of Weymouth Tl
RouteCity Street 0
CountyPlymouth County
StateMassachusetts
Coordinates42.17888, -70.91612
Functional classUrban Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.9 US tons
Inventory rating34.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length221 ft (67.4 m)
Longest span78 ft (23.8 m)
Deck width54 ft (16.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,077 (2023)
Projected traffic28,427 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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$10.9 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Derby ST over ST 3 Pilgrim HWY built?

It was built in 1958, making it 67 years old in 2025.

What condition is HWY Derby ST over ST 3 Pilgrim HWY 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 November 2023.

How much traffic does HWY Derby ST over ST 3 Pilgrim HWY carry?

About 51,077 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is HWY Derby ST over ST 3 Pilgrim HWY?

The structure is 221 ft (67.4 m) long with a longest span of 78 ft (23.8 m) and a deck 54 ft wide.

Who owns HWY Derby ST over ST 3 Pilgrim HWY?

It is owned by the State Highway Agency.