US Bridges

HWY Mill ST over Water Baker Brook

Fair

Worcester County, Massachusetts · At Sawyer ST · Structure no. G010221FMMUNNBI

Built
1938
87 years old, rebuilt 2012
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Mill ST over Water Baker Brook is a prestressed concrete slab carrying HWY Mill ST over Water Baker Brook in Worcester County, Massachusetts. It was built in 1938 and reconstructed in 2012, so it is 87 years old, older 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 632 by 2031. The structure is 37 ft (11.3 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHWY Mill ST
CrossesWater Baker Brook
LocationAt Sawyer ST
RouteCity Street 0
Coordinates42.55022, -72.00031
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating71.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span34 ft (10.4 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2024)
Projected traffic632 by 2031
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$787,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Mill ST over Water Baker Brook built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 2012.

What condition is HWY Mill ST over Water Baker Brook 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 August 2024.

How much traffic does HWY Mill ST over Water Baker Brook carry?

About 500 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is HWY Mill ST over Water Baker Brook?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m) and a deck 34 ft wide.

Who owns HWY Mill ST over Water Baker Brook?

It is owned by the City or Municipal Highway Agency.