US Bridges

HWY Dimmock ST over TR Red Line Ssh

Fair

Norfolk County, Massachusetts · 330 Ft SW of Hancock ST · Structure no. Q010064UFMBTNBI

Built
1971
54 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
76 ft
1 main span
Daily traffic
3,000
1997 count
Owner
State
Other State Agency

About this bridge

HWY Dimmock ST over TR Red Line Ssh is a steel stringer/multi-beam or girder carrying HWY Dimmock ST over TR Red Line Ssh in Norfolk County, Massachusetts. It was built in 1971, so it is 54 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 3,000 vehicles a day, roughly 3% of them trucks, projected to reach 4,738 by 2031. The structure is 76 ft (23.3 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Dimmock ST
CrossesTR Red Line Ssh
Location330 Ft SW of Hancock ST
RouteCity Street 0
CountyNorfolk County
StateMassachusetts
Coordinates42.25326, -71.00638
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.3 US tons
Inventory rating35.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length76 ft (23.3 m)
Longest span72 ft (21.9 m)
Deck width58 ft (17.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (1997)
Projected traffic4,738 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$4.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Dimmock ST over TR Red Line Ssh built?

It was built in 1971, making it 54 years old in 2025.

What condition is HWY Dimmock ST over TR Red Line Ssh 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 December 2022.

How much traffic does HWY Dimmock ST over TR Red Line Ssh carry?

About 3,000 vehicles per day (1997 count), of which roughly 3% are trucks.

How long is HWY Dimmock ST over TR Red Line Ssh?

The structure is 76 ft (23.3 m) long with a longest span of 72 ft (21.9 m) and a deck 58 ft wide.

Who owns HWY Dimmock ST over TR Red Line Ssh?

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