US Bridges

HWY Mower ST over Water Tatnuck Brook

Fair

Worcester County, Massachusetts · .1 Mi. W. of Tatnuck Sq. · Structure no. W440011DNMUNNBI

Built
1920
105 years old
Condition
Fair
inspected December 2024
Type
Arch - Deck
Concrete
Length
25 ft
1 main span
Daily traffic
4,381
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Mower ST over Water Tatnuck Brook is a concrete arch - deck carrying HWY Mower ST over Water Tatnuck Brook in Worcester County, Massachusetts. It was built in 1920, so it is 105 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.

It carries about 4,381 vehicles a day, roughly 7% of them trucks, projected to reach 10,739 by 2031. The structure is 25 ft (7.7 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHWY Mower ST
CrossesWater Tatnuck Brook
Location.1 Mi. W. of Tatnuck Sq.
RouteCity Street 0
CountyWorcester County
StateMassachusetts
Coordinates42.27969, -71.85587
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.3 US tons
Inventory rating45.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.7 m)
Longest span25 ft (7.7 m)
Deck width55 ft (16.8 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,381 (2023)
Projected traffic10,739 by 2031
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Mower ST over Water Tatnuck Brook built?

It was built in 1920, making it 105 years old in 2025.

What condition is HWY Mower ST over Water Tatnuck 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 December 2024.

How much traffic does HWY Mower ST over Water Tatnuck Brook carry?

About 4,381 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is HWY Mower ST over Water Tatnuck Brook?

The structure is 25 ft (7.7 m) long with a longest span of 25 ft (7.7 m) and a deck 55 ft wide.

Who owns HWY Mower ST over Water Tatnuck Brook?

It is owned by the City or Municipal Highway Agency.