US Bridges

ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel

Fair

Suffolk County, Massachusetts · 1 MI SW of Jet SR 145&1A · Structure no. R0502139FDOTNBI

Built
1933
92 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
119,439
2024 count
Owner
State
State Highway Agency

About this bridge

ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel is a concrete culvert carrying ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel in Suffolk County, Massachusetts. It was built in 1933, so it is 92 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 119,439 vehicles a day, roughly 10% of them trucks, projected to reach 82,439 by 2031. The structure is 22 ft (6.7 m) long and 101 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesST 1 A/Lee Brbnk
CrossesOther Oil Pipe Tunnel
Location1 MI SW of Jet SR 145&1A
RouteState Highway 1A
CountySuffolk County
StateMassachusetts
Coordinates42.40016, -71.00615
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
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span15 ft (4.6 m)
Deck width101 ft (30.8 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119,439 (2024)
Projected traffic82,439 by 2031
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel built?

It was built in 1933, making it 92 years old in 2025.

What condition is ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel 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 June 2024.

How much traffic does ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel carry?

About 119,439 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel?

The structure is 22 ft (6.7 m) long with a longest span of 15 ft (4.6 m) and a deck 101 ft wide.

Who owns ST 1 A/Lee Brbnk over Other Oil Pipe Tunnel?

It is owned by the State Highway Agency.