US Bridges

HWY Robertson ST over I 93 /US1/ST3

Good

Norfolk County, Massachusetts · 3.2 KM N of JCT I93&128 · Structure no. Q010393FFDOTNBI

Built
1958
67 years old, rebuilt 2020
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
143 ft
2 main spans
Daily traffic
14,741
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Robertson ST over I 93 /US1/ST3 is a steel continuous stringer/multi-beam or girder carrying HWY Robertson ST over I 93 /US1/ST3 in Norfolk County, Massachusetts. It was built in 1958 and reconstructed in 2020, 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 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 14,741 vehicles a day, roughly 4% of them trucks, projected to reach 18,636 by 2031. The structure is 143 ft (43.6 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Robertson ST
CrossesI 93 /US1/ST3
Location3.2 KM N of JCT I93&128
RouteCity Street 0
Coordinates42.25054, -71.03783
Functional classUrban Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating57.1 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length143 ft (43.6 m)
Longest span67 ft (20.4 m)
Deck width48 ft (14.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,741 (2024)
Projected traffic18,636 by 2031
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Robertson ST over I 93 /US1/ST3 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2020.

What condition is HWY Robertson ST over I 93 /US1/ST3 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 August 2024.

How much traffic does HWY Robertson ST over I 93 /US1/ST3 carry?

About 14,741 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is HWY Robertson ST over I 93 /US1/ST3?

The structure is 143 ft (43.6 m) long with a longest span of 67 ft (20.4 m) and a deck 48 ft wide.

Who owns HWY Robertson ST over I 93 /US1/ST3?

It is owned by the State Highway Agency.