US Bridges

HWY Mill ST over Water Quinebaug River

FairPosted for load

Worcester County, Massachusetts · 200 Ft. North of ST-131 · Structure no. S210031HBMUNNBI

Built
1956
69 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
682
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Mill ST over Water Quinebaug River is a steel stringer/multi-beam or girder carrying HWY Mill ST over Water Quinebaug River in Worcester County, Massachusetts. It was built in 1956, so it is 69 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 682 vehicles a day, projected to reach 948 by 2032. The structure is 90 ft (27.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Mill ST
CrossesWater Quinebaug River
Location200 Ft. North of ST-131
RouteCity Street 0
Coordinates42.08117, -72.04416
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating31.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length90 ft (27.4 m)
Longest span85 ft (25.9 m)
Deck width41 ft (12.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic682 (2021)
Projected traffic948 by 2032
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$3.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Mill ST over Water Quinebaug River built?

It was built in 1956, making it 69 years old in 2025.

What condition is HWY Mill ST over Water Quinebaug River 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 March 2023.

How much traffic does HWY Mill ST over Water Quinebaug River carry?

About 682 vehicles per day (2021 count).

How long is HWY Mill ST over Water Quinebaug River?

The structure is 90 ft (27.4 m) long with a longest span of 85 ft (25.9 m) and a deck 41 ft wide.

Who owns HWY Mill ST over Water Quinebaug River?

It is owned by the Town or Township Highway Agency.