US Bridges

HWY Hillman ST over ST 18 & Ramp a

Fair

Bristol County, Massachusetts · .2 MI NW of US 6 · Structure no. N060313Y1DOTNBI

Built
1973
52 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
186 ft
3 main spans
Daily traffic
12,600
2024 count
Owner
State
State Highway Agency

About this bridge

HWY Hillman ST over ST 18 & Ramp a is a steel stringer/multi-beam or girder carrying HWY Hillman ST over ST 18 & Ramp a in Bristol County, Massachusetts. It was built in 1973, so it is 52 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 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 12,600 vehicles a day, roughly 6% of them trucks, projected to reach 25,743 by 2032. The structure is 186 ft (56.7 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Hillman ST
CrossesST 18 & Ramp a
Location.2 MI NW of US 6
RouteCity Street 0
CountyBristol County
StateMassachusetts
Coordinates41.64004, -70.92543
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating29.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length186 ft (56.7 m)
Longest span75 ft (22.9 m)
Deck width50 ft (15.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,600 (2024)
Projected traffic25,743 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$8.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Hillman ST over ST 18 & Ramp a built?

It was built in 1973, making it 52 years old in 2025.

What condition is HWY Hillman ST over ST 18 & Ramp 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 March 2024.

How much traffic does HWY Hillman ST over ST 18 & Ramp a carry?

About 12,600 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is HWY Hillman ST over ST 18 & Ramp a?

The structure is 186 ft (56.7 m) long with a longest span of 75 ft (22.9 m) and a deck 50 ft wide.

Who owns HWY Hillman ST over ST 18 & Ramp a?

It is owned by the State Highway Agency.