US Bridges

ST 27 /ST62/WALTHM over Water Assabet River

Good

Middlesex County, Massachusetts · 0.1 MI E Rt 62 · Structure no. M10007B5FMUNNBI

Built
2013
12 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
115 ft
1 main span
Daily traffic
12,574
2022 count
Owner
State
State Highway Agency

About this bridge

ST 27 /ST62/WALTHM over Water Assabet River is a steel stringer/multi-beam or girder carrying ST 27 /ST62/WALTHM over Water Assabet River in Middlesex County, Massachusetts. It was built in 2013, so it is 12 years old, younger than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,574 vehicles a day, roughly 2% of them trucks. The structure is 115 ft (35 m) long and 58 ft wide.

Location

Open in Google Maps
CarriesST 27 /ST62/WALTHM
CrossesWater Assabet River
Location0.1 MI E Rt 62
RouteState Highway 27
CountyMiddlesex County
StateMassachusetts
Coordinates42.43255, -71.44927
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating92.5 US tons
Inventory rating55.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length115 ft (35 m)
Longest span111 ft (33.7 m)
Deck width58 ft (17.6 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,574 (2022)
Projected traffic—
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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$8.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 27 /ST62/WALTHM over Water Assabet River built?

It was built in 2013, making it 12 years old in 2025.

What condition is ST 27 /ST62/WALTHM over Water Assabet River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does ST 27 /ST62/WALTHM over Water Assabet River carry?

About 12,574 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is ST 27 /ST62/WALTHM over Water Assabet River?

The structure is 115 ft (35 m) long with a longest span of 111 ft (33.7 m) and a deck 58 ft wide.

Who owns ST 27 /ST62/WALTHM over Water Assabet River?

It is owned by the State Highway Agency.