US Bridges

HWY Ramp U-D over HWY Ramp T-U-A

Fair

Suffolk County, Massachusetts · 1.20 KM SE of Callahan Tu · Structure no. B16564A1QMPANBI

Built
2001
24 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
509 ft
4 main spans
Daily traffic
9,400
2001 count
Owner
State
Other State Agency

About this bridge

HWY Ramp U-D over HWY Ramp T-U-A is a prestressed concrete continuous box beam or girders - single or spread carrying HWY Ramp U-D over HWY Ramp T-U-A in Suffolk County, Massachusetts. It was built in 2001, so it is 24 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 9,400 vehicles a day, projected to reach 14,845 by 2032. The structure is 509 ft (155 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Ramp U-D
CrossesHWY Ramp T-U-A
Location1.20 KM SE of Callahan Tu
CountySuffolk County
StateMassachusetts
Coordinates42.36944, -71.02778
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckOther
Main spans4
Design loadHS 25 or greater
Structure length509 ft (155 m)
Longest span139 ft (42.5 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck15 ft (4.7 m)

Traffic and service

Average daily traffic9,400 (2001)
Projected traffic14,845 by 2032
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$4.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Ramp U-D over HWY Ramp T-U-A built?

It was built in 2001, making it 24 years old in 2025.

What condition is HWY Ramp U-D over HWY Ramp T-U-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 U-D over HWY Ramp T-U-A carry?

About 9,400 vehicles per day (2001 count).

How long is HWY Ramp U-D over HWY Ramp T-U-A?

The structure is 509 ft (155 m) long with a longest span of 139 ft (42.5 m) and a deck 26 ft wide.

Who owns HWY Ramp U-D over HWY Ramp T-U-A?

It is owned by the Other State Agency.