US Bridges

HWY Dean RD over TR Green Line D

Good

Norfolk County, Massachusetts · Over Green Line · Structure no. B270024UKMBTNBI

Built
1850
175 years old, rebuilt 2012
Condition
Good
inspected October 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
14,900
2023 count
Owner
State
Other State Agency

About this bridge

HWY Dean RD over TR Green Line D is a prestressed concrete box beam or girders - single or spread carrying HWY Dean RD over TR Green Line D in Norfolk County, Massachusetts. It was built in 1850 and reconstructed in 2012, so it is 175 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,900 vehicles a day, roughly 1% of them trucks, projected to reach 4,738 by 2030. The structure is 67 ft (20.3 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Dean RD
CrossesTR Green Line D
LocationOver Green Line
RouteCity Street 0
Coordinates42.33773, -71.14198
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating92.3 US tons
Inventory rating55.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length67 ft (20.3 m)
Longest span61 ft (18.6 m)
Deck width53 ft (16.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,900 (2023)
Projected traffic4,738 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Dean RD over TR Green Line D built?

It was built in 1850, making it 175 years old in 2025. It was reconstructed in 2012.

What condition is HWY Dean RD over TR Green Line D in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2022.

How much traffic does HWY Dean RD over TR Green Line D carry?

About 14,900 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is HWY Dean RD over TR Green Line D?

The structure is 67 ft (20.3 m) long with a longest span of 61 ft (18.6 m) and a deck 53 ft wide.

Who owns HWY Dean RD over TR Green Line D?

It is owned by the Other State Agency and maintained by the State Highway Agency.