US Bridges

HWY Mechanic ST over Water Mumford River

FairPosted for load

Worcester County, Massachusetts · .1 MI N of RTE 16 · Structure no. D090031BCMUNNBI

Built
1873
152 years old
Condition
Fair
inspected October 2023
Type
Arch - Deck
Masonry
Length
40 ft
1 main span
Daily traffic
4,586
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

HWY Mechanic ST over Water Mumford River is a masonry arch - deck carrying HWY Mechanic ST over Water Mumford River in Worcester County, Massachusetts. It was built in 1873, so it is 152 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 4,586 vehicles a day, roughly 6% of them trucks, projected to reach 6,317 by 2032. The structure is 40 ft (12.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHWY Mechanic ST
CrossesWater Mumford River
Location.1 MI N of RTE 16
RouteCity Street 0
CountyWorcester County
StateMassachusetts
Coordinates42.07359, -71.71531
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating21.4 US tons
Inventory rating21.3 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width26 ft (7.9 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,586 (2022)
Projected traffic6,317 by 2032
Trucks6%
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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Mechanic ST over Water Mumford River built?

It was built in 1873, making it 152 years old in 2025.

What condition is HWY Mechanic ST over Water Mumford 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 October 2023.

How much traffic does HWY Mechanic ST over Water Mumford River carry?

About 4,586 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is HWY Mechanic ST over Water Mumford River?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.

Who owns HWY Mechanic ST over Water Mumford River?

It is owned by the Town or Township Highway Agency.