US Bridges

HWY Herrick RD over TR Green Line D

Fair

Middlesex County, Massachusetts · Over Green Line · Structure no. N120344TWMBTNBI

Built
1907
118 years old, rebuilt 2001
Condition
Fair
inspected October 2022
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
4,267
2022 count
Owner
State
Other State Agency

About this bridge

HWY Herrick RD over TR Green Line D is a prestressed concrete box beam or girders - single or spread carrying HWY Herrick RD over TR Green Line D in Middlesex County, Massachusetts. It was built in 1907 and reconstructed in 2001, so it is 118 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 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 4,267 vehicles a day, roughly 3% of them trucks, projected to reach 1,106 by 2031. The structure is 46 ft (14 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Herrick RD
CrossesTR Green Line D
LocationOver Green Line
RouteCity Street 0
Coordinates42.32901, -71.19344
Functional classUrban Local

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.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating70.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length46 ft (14 m)
Longest span39 ft (11.8 m)
Deck width42 ft (12.8 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,267 (2022)
Projected traffic1,106 by 2031
Trucks3%
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$1.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1907, making it 118 years old in 2025. It was reconstructed in 2001.

What condition is HWY Herrick RD over TR Green Line D 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 October 2022.

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

About 4,267 vehicles per day (2022 count), of which roughly 3% are trucks.

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

The structure is 46 ft (14 m) long with a longest span of 39 ft (11.8 m) and a deck 42 ft wide.

Who owns HWY Herrick RD over TR Green Line D?

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