US Bridges

HWY Jamaicaway over ST 9 Huntngton Ave

Fair

Suffolk County, Massachusetts · JCT US 1 & ST 9 · Structure no. B162223F3DOTNBI

Built
1936
89 years old
Condition
Fair
inspected January 2025
Type
Frame
Steel
Length
120 ft
1 main span
Daily traffic
37,500
2025 count
Owner
State
State Highway Agency

About this bridge

HWY Jamaicaway over ST 9 Huntngton Ave is a steel frame carrying HWY Jamaicaway over ST 9 Huntngton Ave in Suffolk County, Massachusetts. It was built in 1936, so it is 89 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 37,500 vehicles a day, roughly 1% of them trucks, projected to reach 94,758 by 2032. The structure is 120 ft (36.6 m) long and 70 ft wide.

Location

Open in Google Maps
CarriesHWY Jamaicaway
CrossesST 9 Huntngton Ave
LocationJCT US 1 & ST 9
RouteU.S. Route 1
CountySuffolk County
StateMassachusetts
Coordinates42.33197, -71.11296
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating95.8 US tons
Inventory rating57.4 US tons

Structure

Structure typeFrame
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length120 ft (36.6 m)
Longest span117 ft (35.6 m)
Deck width70 ft (21.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,500 (2025)
Projected traffic94,758 by 2032
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$7.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Jamaicaway over ST 9 Huntngton Ave built?

It was built in 1936, making it 89 years old in 2025.

What condition is HWY Jamaicaway over ST 9 Huntngton Ave 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 January 2025.

How much traffic does HWY Jamaicaway over ST 9 Huntngton Ave carry?

About 37,500 vehicles per day (2025 count), of which roughly 1% are trucks.

How long is HWY Jamaicaway over ST 9 Huntngton Ave?

The structure is 120 ft (36.6 m) long with a longest span of 117 ft (35.6 m) and a deck 70 ft wide.

Who owns HWY Jamaicaway over ST 9 Huntngton Ave?

It is owned by the State Highway Agency.