US Bridges

HWY Speen ST SB over ST 9 & Ramp a

Poor

Middlesex County, Massachusetts · 0.9 MI W of Rt 27 · Structure no. N03033291DOTNBI

Built
1977
48 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
167 ft
3 main spans
Daily traffic
34,773
2023 count
Owner
State
State Highway Agency

About this bridge

HWY Speen ST SB over ST 9 & Ramp a is a steel stringer/multi-beam or girder carrying HWY Speen ST SB over ST 9 & Ramp a in Middlesex County, Massachusetts. It was built in 1977, so it is 48 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 34,773 vehicles a day, roughly 6% of them trucks, projected to reach 31,586 by 2032. The structure is 167 ft (50.9 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesHWY Speen ST SB
CrossesST 9 & Ramp a
Location0.9 MI W of Rt 27
RouteCity Street 0
Coordinates42.29936, -71.37907
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 12 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating44.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span52 ft (15.8 m)
Deck width52 ft (15.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,773 (2023)
Projected traffic31,586 by 2032
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 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$7.8 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was HWY Speen ST SB over ST 9 & Ramp a built?

It was built in 1977, making it 48 years old in 2025.

What condition is HWY Speen ST SB over ST 9 & Ramp a in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does HWY Speen ST SB over ST 9 & Ramp a carry?

About 34,773 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is HWY Speen ST SB over ST 9 & Ramp a?

The structure is 167 ft (50.9 m) long with a longest span of 52 ft (15.8 m) and a deck 52 ft wide.

Who owns HWY Speen ST SB over ST 9 & Ramp a?

It is owned by the State Highway Agency.