US Bridges

HWY Putnam ST over Water N Nashua River

Fair

Worcester County, Massachusetts · At Boulder ST & Putnam ST · Structure no. F040141EKMUNNBI

Built
1900
125 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Masonry
Length
95 ft
2 main spans
Daily traffic
3,500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

HWY Putnam ST over Water N Nashua River is a masonry arch - deck carrying HWY Putnam ST over Water N Nashua River in Worcester County, Massachusetts. It was built in 1900, so it is 125 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 3,500 vehicles a day, roughly 16% of them trucks, projected to reach 22,110 by 2031. The structure is 95 ft (29 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHWY Putnam ST
CrossesWater N Nashua River
LocationAt Boulder ST & Putnam ST
RouteCity Street 0
Coordinates42.58147, -71.8
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110 US tons
Inventory rating109.9 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length95 ft (29 m)
Longest span44 ft (13.4 m)
Deck width41 ft (12.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2024)
Projected traffic22,110 by 2031
Trucks16%
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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$3.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was HWY Putnam ST over Water N Nashua River built?

It was built in 1900, making it 125 years old in 2025.

What condition is HWY Putnam ST over Water N Nashua 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 June 2024.

How much traffic does HWY Putnam ST over Water N Nashua River carry?

About 3,500 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is HWY Putnam ST over Water N Nashua River?

The structure is 95 ft (29 m) long with a longest span of 44 ft (13.4 m) and a deck 41 ft wide.

Who owns HWY Putnam ST over Water N Nashua River?

It is owned by the City or Municipal Highway Agency.