US Bridges

HWY Frnt RD NB over HWY Ramp K

Fair

Suffolk County, Massachusetts · Mass Ave. Int. · Structure no. B1665791BDOTNBI

Built
2000
25 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
326 ft
2 main spans
Daily traffic
38,534
2025 count
Owner
State
State Highway Agency

About this bridge

HWY Frnt RD NB over HWY Ramp K is a steel continuous box beam or girders - multiple carrying HWY Frnt RD NB over HWY Ramp K in Suffolk County, Massachusetts. It was built in 2000, so it is 25 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 38,534 vehicles a day, roughly 3% of them trucks, projected to reach 32,060 by 2032. The structure is 326 ft (99.3 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Frnt RD NB
CrossesHWY Ramp K
LocationMass Ave. Int.
RouteState Lands Road 931
CountySuffolk County
StateMassachusetts
Coordinates42.33486, -71.06458
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating74.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length326 ft (99.3 m)
Longest span169 ft (51.4 m)
Deck width51 ft (15.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,534 (2025)
Projected traffic32,060 by 2032
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$14.5 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Frnt RD NB over HWY Ramp K built?

It was built in 2000, making it 25 years old in 2025.

What condition is HWY Frnt RD NB over HWY Ramp K 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 Frnt RD NB over HWY Ramp K carry?

About 38,534 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is HWY Frnt RD NB over HWY Ramp K?

The structure is 326 ft (99.3 m) long with a longest span of 169 ft (51.4 m) and a deck 51 ft wide.

Who owns HWY Frnt RD NB over HWY Ramp K?

It is owned by the State Highway Agency.