US Bridges

HWY Ramp E-T over HWY Ramp S-A

Fair

Suffolk County, Massachusetts · 1.20 KM SE of Callahan Tu · Structure no. B165629GVMPANBI

Built
1996
29 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
384 ft
3 main spans
Daily traffic
13,360
2001 count
Owner
State
Other State Agency

About this bridge

HWY Ramp E-T over HWY Ramp S-A is a prestressed concrete continuous box beam or girders - multiple carrying HWY Ramp E-T over HWY Ramp S-A in Suffolk County, Massachusetts. It was built in 1996, so it is 29 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 13,360 vehicles a day, projected to reach 1,895 by 21. The structure is 384 ft (117.1 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesHWY Ramp E-T
CrossesHWY Ramp S-A
Location1.20 KM SE of Callahan Tu
CountySuffolk County
StateMassachusetts
Coordinates42.36944, -71.02778
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 alignment8: Equal to present desirable criteria
Operating rating74.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length384 ft (117.1 m)
Longest span139 ft (42.5 m)
Deck width64 ft (19.5 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic13,360 (2001)
Projected traffic1,895 by 21
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Ramp E-T over HWY Ramp S-A built?

It was built in 1996, making it 29 years old in 2025.

What condition is HWY Ramp E-T over HWY Ramp S-A 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 September 2023.

How much traffic does HWY Ramp E-T over HWY Ramp S-A carry?

About 13,360 vehicles per day (2001 count).

How long is HWY Ramp E-T over HWY Ramp S-A?

The structure is 384 ft (117.1 m) long with a longest span of 139 ft (42.5 m) and a deck 64 ft wide.

Who owns HWY Ramp E-T over HWY Ramp S-A?

It is owned by the Other State Agency.