US Bridges

HWY Richmond ST over ST 1 A/Nb

Fair

Suffolk County, Massachusetts · At West End Cal Tnl · Structure no. B16234BKVDOTNBI

Built
1961
64 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
775
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Richmond ST over ST 1 A/Nb is a steel stringer/multi-beam or girder carrying HWY Richmond ST over ST 1 A/Nb in Suffolk County, Massachusetts. It was built in 1961, so it is 64 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 775 vehicles a day, roughly 20% of them trucks. The structure is 33 ft (10 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHWY Richmond ST
CrossesST 1 A/Nb
LocationAt West End Cal Tnl
RouteCity Street 0
CountySuffolk County
StateMassachusetts
Coordinates42.3628, -71.0537
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating86.3 US tons
Inventory rating51.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10 m)
Longest span28 ft (8.4 m)
Deck width40 ft (12.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2023)
Projected traffic—
Trucks20%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Richmond ST over ST 1 A/Nb built?

It was built in 1961, making it 64 years old in 2025.

What condition is HWY Richmond ST over ST 1 A/Nb 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 May 2023.

How much traffic does HWY Richmond ST over ST 1 A/Nb carry?

About 775 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is HWY Richmond ST over ST 1 A/Nb?

The structure is 33 ft (10 m) long with a longest span of 28 ft (8.4 m) and a deck 40 ft wide.

Who owns HWY Richmond ST over ST 1 A/Nb?

It is owned by the State Highway Agency.