US Bridges

HWY Allen ST over Water Assabet River

Good

Worcester County, Massachusetts · At Corner of Hudson St. · Structure no. N200021CVMUNNBI

Built
1986
39 years old, rebuilt 2007
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
4,525
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Allen ST over Water Assabet River is a prestressed concrete box beam or girders - multiple carrying HWY Allen ST over Water Assabet River in Worcester County, Massachusetts. It was built in 1986 and reconstructed in 2007, so it is 39 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 4,525 vehicles a day, roughly 11% of them trucks, projected to reach 4,896 by 2032. The structure is 64 ft (19.5 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHWY Allen ST
CrossesWater Assabet River
LocationAt Corner of Hudson St.
RouteCity Street 0
Coordinates42.32951, -71.63002
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating97.2 US tons
Inventory rating58.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length64 ft (19.5 m)
Longest span58 ft (17.7 m)
Deck width40 ft (12.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,525 (2023)
Projected traffic4,896 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Allen ST over Water Assabet River built?

It was built in 1986, making it 39 years old in 2025. It was reconstructed in 2007.

What condition is HWY Allen ST 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 August 2023.

How much traffic does HWY Allen ST over Water Assabet River carry?

About 4,525 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is HWY Allen ST over Water Assabet River?

The structure is 64 ft (19.5 m) long with a longest span of 58 ft (17.7 m) and a deck 40 ft wide.

Who owns HWY Allen ST over Water Assabet River?

It is owned by the Town or Township Highway Agency.