US Bridges

ST 12 Ashburnhm ST over Water Phillips Brook

Good

Worcester County, Massachusetts · .5 MI N of Ftchbrg Tl · Structure no. W280075VXDOTNBI

Built
2010
15 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
3,122
2023 count
Owner
State
State Highway Agency

About this bridge

ST 12 Ashburnhm ST over Water Phillips Brook is a prestressed concrete box beam or girders - single or spread carrying ST 12 Ashburnhm ST over Water Phillips Brook in Worcester County, Massachusetts. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,122 vehicles a day, roughly 1% of them trucks, projected to reach 11,434 by 2032. The structure is 69 ft (21 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesST 12 Ashburnhm ST
CrossesWater Phillips Brook
Location.5 MI N of Ftchbrg Tl
RouteState Highway 12
CountyWorcester County
StateMassachusetts
Coordinates42.59851, -71.86401
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span64 ft (19.4 m)
Deck width42 ft (12.7 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,122 (2023)
Projected traffic11,434 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

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$1.7 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST 12 Ashburnhm ST over Water Phillips Brook built?

It was built in 2010, making it 15 years old in 2025.

What condition is ST 12 Ashburnhm ST over Water Phillips Brook 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 October 2023.

How much traffic does ST 12 Ashburnhm ST over Water Phillips Brook carry?

About 3,122 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is ST 12 Ashburnhm ST over Water Phillips Brook?

The structure is 69 ft (21 m) long with a longest span of 64 ft (19.4 m) and a deck 42 ft wide.

Who owns ST 12 Ashburnhm ST over Water Phillips Brook?

It is owned by the State Highway Agency.