US Bridges

ST 3 A/Hanck Onrp over Other Relief

Fair

Suffolk County, Massachusetts · .2 MI E of I 93 · Structure no. B163904FTDOTNBI

Built
1970
55 years old, rebuilt 2012
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
223 ft
2 main spans
Daily traffic
16,500
2023 count
Owner
State
State Highway Agency

About this bridge

ST 3 A/Hanck Onrp over Other Relief is a steel stringer/multi-beam or girder carrying ST 3 A/Hanck Onrp over Other Relief in Suffolk County, Massachusetts. It was built in 1970 and reconstructed in 2012, so it is 55 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 16,500 vehicles a day, roughly 3% of them trucks, projected to reach 43,510 by 2032. The structure is 223 ft (68 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesST 3 A/Hanck Onrp
CrossesOther Relief
Location.2 MI E of I 93
RouteState Highway 3A
CountySuffolk County
StateMassachusetts
Coordinates42.28306, -71.03736
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating93.6 US tons
Inventory rating56.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length223 ft (68 m)
Longest span110 ft (33.5 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2023)
Projected traffic43,510 by 2032
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$6.1 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was ST 3 A/Hanck Onrp over Other Relief built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2012.

What condition is ST 3 A/Hanck Onrp over Other Relief 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 March 2023.

How much traffic does ST 3 A/Hanck Onrp over Other Relief carry?

About 16,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is ST 3 A/Hanck Onrp over Other Relief?

The structure is 223 ft (68 m) long with a longest span of 110 ft (33.5 m) and a deck 30 ft wide.

Who owns ST 3 A/Hanck Onrp over Other Relief?

It is owned by the State Highway Agency.